Potamites montanicola 2012

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A newspecies of Andean semiaquatic lizard of the genusPotamites... 31

A nw spcs of Andan smaquac zard of gnus Potamites (Saura, Gymnopamda)

from sourn Pru

Germn Chvez1,, Diego Vsquez1,

1 Centro de Ornitologa y Biodiversidad (CORBIDI). Calle Santa Rita 135, Urb. Los Huertos de San Antonio,

Lima 33, Peru

urn:lsid:zoobank.org:author:9E8C7BD7-4A1B-469D-B54B-AE16D8DA2DD4

urn:lsid:zoobank.org:author:4198DE5E-D2DE-4CBF-BA70-119DC027159B

Corresponding author:Germn [email protected])

Academic editor:N. Ananjeva | Received 10 September 2011 | Accepted 23 January 2012 | Published 31 January 2012

urn:lsid:zoobank.org:pub:C79EB609-C9E7-4D60-B4B5-C6068870E2A9

Caon: Chvez G, Vsquez D 2012) A new species o Andean semiaquatic lizard o the genus Potamites Sauria,

Gymnophtalmidae) rom southern Peru. ZooKeys 168: 3144.doi: 10.3897/zookeys.168.2048

Absrac

We describe a new lizard species o the genus Potamitesrom the montane orests o the Cordillera de Vil

cabamba Cusco region) and Apurimac River valley Ayacucho region), between 1500 and 2000 meters o

elevation, in southern Peru. Te new species is distinguishable rom all other species o the genus mainly

by having highly keeled scattered scales on dorsum and emales lacking emoral pores.

Resumen

Describimos una nueva especie de lagartija del genero Potamitesde los bosques montanos de la Cordillera

de Vilcabamba y del Valle del ro Apurmac, entre los 1500 y 2000 metros de elevacin, en las regiones

de Cusco y Ayacucho respectivamente, del sur de Peru. La nueva especie es distinguible de todas las otras

especies del genero principalmente por tener escamas altamente quilladas y desordenadas en el dorso y por

no presentar poros emorales en las hembras.

Keywords

Potamites, Cusco, Ayacucho, Peru

Palabras clave

Potamites, Cusco, Ayacucho, Peru

ZooKeys 168: 3143 (2012)

doi: 10.3897/zookeys.168.2048

www.zookeys.org

Copyright G. Chvez, D. Vsquez.This is an open access article distributed under the terms of the Creative Commons Attribution License 3.0

(CC-BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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http://dx.doi.org/10.3897/zookeys.168.2048http://zoobank.org/?lsid=urn:lsid:zoobank.org:author:9E8C7BD7-4A1B-469D-B54B-AE16D8DA2DD4http://zoobank.org/?lsid=urn:lsid:zoobank.org:author:4198DE5E-D2DE-4CBF-BA70-119DC027159Bmailto:[email protected]://zoobank.org/?lsid=urn:lsid:zoobank.org:pub:C79EB609-C9E7-4D60-B4B5-C6068870E2A9http://dx.doi.org/10.3897/zookeys.168.2048http://dx.doi.org/10.3897/zookeys.168.2048http://dx.doi.org/10.3897/zookeys.168.2048http://www.zookeys.org/http://creativecommons.org/licenses/by/3.0/http://creativecommons.org/licenses/by/3.0/http://creativecommons.org/licenses/by/3.0/http://creativecommons.org/licenses/by/3.0/http://creativecommons.org/licenses/by/3.0/http://www.zookeys.org/http://dx.doi.org/10.3897/zookeys.168.2048http://dx.doi.org/10.3897/zookeys.168.2048http://zoobank.org/?lsid=urn:lsid:zoobank.org:pub:C79EB609-C9E7-4D60-B4B5-C6068870E2A9mailto:[email protected]://zoobank.org/?lsid=urn:lsid:zoobank.org:author:4198DE5E-D2DE-4CBF-BA70-119DC027159Bhttp://zoobank.org/?lsid=urn:lsid:zoobank.org:author:9E8C7BD7-4A1B-469D-B54B-AE16D8DA2DD4


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Germn Chvez & Diego Vsquez / ZooKeys 168: 3144 (2012)32

inroducon

Te semi aquatic lizards o the genus Potamiteswere considered as Neusticurusor manyyears, this genus included eleven species, however Neusticurusis currently represented

only by ve species and the other six are included in the genus PotamitesDoan andCastoe 2005). wo species o Potamites occur ormerly in Peru: P. ecpleopus and P.strangulatus; P. strangulatushas two recognized subspecies: P. s. strangulatus and P. s.trachodus, recorded in the Amazonian lowlands between 100 and 800 m elevations inthe centre and the north respectively Uzell 1966) and easily distinguishable by the absence or presence o tubercles on the anks. Additionally another species o the genus,P. juruazenzis, was described rom rio Juru, Acre state, at southwestern Brazil AvilaPires and Vitt 1998), but even though it has never been recorded in Peru, its occurrence there is expected due to the proximity o the type locality to the borderline withthe Ucayali Region. Potamites ocellatusSinitsin 1930) was described with a holotyperom Rurrenabaque Beni region, Bolivia) and 54 paratypes rom Chanchamayo andPeren valleys Junin, Peru). However, the variation in the paratypes was not includedin the description, and given the distance between both sites approximately 1000km airline), they were questioned to belong to the same species. Sinitsin in a ootnoteexplains that the new orm would be analized by Charles E. Burt in another paper. Inthe new publication, Burt and Burt 1931) conclude that P. ocellatusis a subspecies oP. ecpleopusbecause the scutellation and measurements are similar to P. ecpleopus. Someyears later, Uzell 1966) proposed the subspecies P. ecpleopus ocellatusto be a synonymoP. ecpleopusand later on Vanzolini 1995) resurrected P. ocellatusand elevated it tothe species level but in reerence to the Bolivian holotype only). Even though, thegenus Potamites still presents several taxonomic uncertainties, it also proves that itsdiversity is also underestimated and poorly studied. Recent surveys carried out during2010 gave as a result the discovery o a new species oPotamitesrom southern Peru,which is described herein.

Maeral and mehods

Te description ormat or the new species generally ollows that o Uzell 1966),Vanzolini 1995) and AvilaPires and Vitt 1998). For the comparisons, we used thedescriptions rom all Neusticurusand Potamitesspecies known in the literature: data ormost Neusticurusand Potamiteswere taken rom Uzzell 1966), data or P. juruazensiswas taken rom AvilaPires and Vitt 1998), or P. ocellatus rom Vanzolini 1995),data oN. tateirom BarrioAmors and BrewerCarias 2008) or a detailed list ospecimens reviewed see Appendix 1). Nomenclature o scale characters ollows that o

Uzell 1966) and Khler and Lehr 2004). Scale sizes were measured using precisioncalipers and were rounded to the nearest 0.1 mm. For characters recorded on bothsides, the condition on the right side is presented rst. Everted hemipenes were xedwith ormalin 3.7%. Te abbreviation or the museum collection is CORBIDI Cen


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A new species of Andean semiaquatic lizard of the genusPotamites... 33

tro de Ornitologa y Biodiversidad) and GPS coordinates were taken using the geodeticdatum WGS84.

Resuls

Potamites montanicolasp. n.urn:lsid:zoobank.org:act:1B2597706CF542369E62785266E6ECFChttp://speciesid.net/wiki/Potamites_montanicolaFigures 14

Holotype. Fig. 1a; 2ab; 3a,d) Adult male CORBIDI 08322), Peru, Cusco Region,La Convencin Province, 4.8 km E o Alto Shim Native Community 1234'16.4"S,7309'42.3"W), 1577 m elevation, collected by Germn Chvez and Diego Vasquezon 3 December 2010.

Paratypes. Fig. 1b, d; 3b, c; 4a) CORBIDI 0832427, 08335 all adult males),08328, 08334, 08336, all adult emales), same data as holotype, CORBIDI 06957adult male), Peru, Ayacucho Region, La Mar Province, Cajadela Community1257'27.8"S, 7336'22.4"W), 2098 m elevation, collected by Karla Garca on 23

August 2010.Diagnosis. Assigned to Potamitessensu stricto by having a tongue with imbricate

scalelike papillae, movable eyelids, external ear and heterogeneous dorsal scalation.1) Head acuminate rom dorsal and lateral views, rontonasal length usually equalor slightly shorter than rontal length; 2) nasoloreal suture present; 3) supraocularsour, anteriormost supraocular not used with anteriormost superciliary, all supraoculars separated rom superciliaries; 4) superciliary series complete, usually our; 5)supralabialsubocular usion absent; 6) postoculars three; 7) postparietals three; 8)genials in two pairs, transverse sutures perpendicular with respect to midline o body;9) dorsal scales rectangular, juxtaposed, granular and keeled; 10) transverse dorsalcount enlarged rows at midbody) at midbody 3642 in both sexes; 11) longitudinal

dorsal keeled scales count 3237 in both sexes; 12) longitudinal ventral count 21 23 in both sexes; 13) emoral pores in males 1921, absent in emales; two scalesbetween emoral pores; 14) subdigital scales on 4th nger 1317, on 4th toe 2227;15) orelimb reaching anteriorly to ourth supralabial; 16) ail slightly compressedwith two rows o lateral scales per two ventral caudal scales; 17) hemipenis acapitate;ounces lacking calcied spines and orming two chevrons on distal hal o hemipeniswhile basal hal is covered with 5 transverse ounces; some asulcate ounces separatedby a small expansion pleat; sulcate ounces about as wide as asulcate ounces; sulcusspermaticus single, anked by a broad naked expansion pleat widened distally; 18)

dorsum dark brown; lateral ocelli present in two or three pairs in males, usually absentin emales; ventral color pattern pale blue or yellow with black blotches in males andcreamy white in emales; 19) transparent lower palpebral disc an undivided oval; 20)prerontals present.
http://zoobank.org/?lsid=urn:lsid:zoobank.org:act:1B259770-6CF5-4236-9E62-785266E6ECFChttp://species-id.net/wiki/Potamites_montanicolahttp://species-id.net/wiki/Potamites_montanicolahttp://zoobank.org/?lsid=urn:lsid:zoobank.org:act:1B259770-6CF5-4236-9E62-785266E6ECFC


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Potamites montanicolais easily distinguished o all other Potamitesand Neusticurusspecies by having highly keeled scales scattered all over the dorsum all species haveeither tubercles or keeled scales orming longitudinal rows rom neck to the insertion othe hind limbs, or lack o them) and by emales lacking emoral pores only some emalespecimens o the type series in P. juruazensislack emoral pores). O all Potamitesspecies,P. montanicolabest resembles P. ecpleopus, P. juruazenzisand P. ocellatus. It difers rom P.

ecpleopusby having a lower number o keeled scales on dorsum see specimens reviewedin Appendix 1): 3237 vs 3645), a higher number o scales around midbody: 4350vs 3446), renocular scale pentagonal vs triangular) and a lower number o emoralpores bearing 1921 in males and lacking in emales vs 2548 in males and 115in emales). Difers rom P. juruazenzis by having a higher number o scales aroundmidbody: 4250 vs 3140), bearing scattered dorsal highly keeled scales vs bearingour longitudinal rows o dorsal tubercles), a higher number o lamellae o ourth toe:2227 vs 1622), a higher number o emoral pores in males: 1921 vs 10 16) andby lacking emoral pores in emales vs 02 emoral pores). Difers rom P. ocellatusby

its smaller size: 68.6 mm as maximum SVL in males vs 75 mm in P. ocellatus), dorsalhighly keeled scales present vs at dorsal tubercles present), temporal region covered bymedium size polygonal scales vs covered by large scales interspersed with granules) andhas a lower number o emoral pores in males: 1921 vs 41).

Fgure 1.Potamites montanicola, new species rom southern Peru. Holotype male CORBIDI 08322)

A emale CORBIDI 08328) B uncollected juvenile C ventral view o males o the type series, rom let to

right: CORBIDI 08324, CORBIDI 08322 holotype), CORBIDI 08325, CORBIDI 08326, CORBIDI

08335 D


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Fgure 2. Lateral A dorsal B and ventral C views o the head oPotamites montanicolaholotype COR

BIDI 08322)

A

B

C


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Furthermore, P. montanicoladifers rom other Potamitesand Neusticurusspeciesin its smaller size, having a maximum SVL o 68.6 mm in males vs 117 mm in N.bicarinatus, 121 mm in N. medemi, 104 mm in N. racenisi, 94 mm in N. rudis, 87 mmin P. strangulatusand 94 mm in N. tatei) and 56.1 mm in emales vs 96 mm in N.bicarinatus, 79 mm in P. cochranae, 107 mm in N. medemi, 94 mm in N. racenisi, 89mm in N. rudis, 76 mm in P. strangulatusand 85 mm in N. tatei), bearing dorsal crestsabsent in N. racenisi, N. rudisand P. strangulatus), bearing tubercles on anks absent

in P. cochranae, N. medemi, N. racenisi, P. strangulatusand N. tatei), having a supercialtympanum deep in N. bicarinatus, N. medemi, N. racenisiand shallow in P. cochranaeand N. rudis), having a low number o emoral pores in males:1921 vs 2630 in P.apodemus, 4062 in N. bicarinatus, 5864 in N. medemi, 6272 in N. racenisi, 3246in N. rudis, 4559 in P. strangulatusand 6061 in N. tatei) and lacking emoral poresin emales emoral pores present in all Potamitesand Neusticurusexcepting some individuals oP. juruazensis).

Description of the holotype. Adult male CORBIDI 08322), body long, laterally compressed, SVL 68.64 mm; tail complete) length 107.01 mm, axilla to groin

distance 32.90 mm; head length 16.40 mm; head width 10.29 mm; shank length10.27 mm. Head scales smooth; rostral scale wider 2.57 mm) than long 1.28 mm),higher than adjacent supralabials, in contact with rontonasal, nasoloreal, and rstsupralabials posteriorly; rontonasal almost squarish, slightly longer 2.57 mm) than

Fgure 3. Distinguishable characters oPotamites montanicola. Femoral pores and dorsal scutellation in

the holotype CORBIDI 08322) AB absence o emoral pores and dorsal scutellation in emale COR

BIDI 08328) CD


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wider 2.27 mm), widest posteriorly, in contact with nasoloreal and renocular laterally, prerontals posteriorly; nasoloreal almost triangular, apex in contact with rostral,nasoloreal suture present; prerontals present, in contact with each other medially, incontact with anteriormost superciliary and anteriormost supraocular, rontal posteri

orly; rontal longer 3.79 mm) than wider 2.31 mm), anterior suture angular withpoint directed anteriorly, lateral sutures straight, posterior suture angular with pointslightly directed posteriorly, in contact with rst and second supraocular laterally, rontoparietals posteriorly; rontoparietals pentagonal, in contact with third and ourthsupraocular, parietals and interparietal posteriorly; supraoculars our, none in contactwith ciliaries; superciliary series complete, generally our, anteriormost superciliary notused with anteriormost supraocular; interparietal pentagonal, longer 3.63 mm) thanwider 2.80 mm), in contact with parietals laterally, postparietals posteriorly; parietals pentagonal, in contact with ourth supraocular anterolaterally, temporal scaleslaterally, dorsalmost postocular, postparietals posteriorly; postparietals ten, polygonal,boardering parietals and interparietal; palpebral disc an undivided oval, unpigmented;renocular pentagonal, in contact with nasoloreal anteriorly; postoculars three; temporals polygonals, o a medium size; supralabials ve; inralabials six; mental wider 2.40mm) than long 1.10 mm), in contact with rst inralabials, postmental posteriorly;postmental single, pentagonal, posterior suture angular, point directed posteriorly, incontact with rst and second inralabials; genials in two pairs, anterior pair subquadrangular, in contact with second and third inralabials; posterior genials pentangular,in contact with ourth inralabials laterally; scale rows between genials and collar oldalong midventral line) 17; posteriormost gular row enolded posteriorly, concealingtwo granular scale rows; lateral neck scales rounded, conical. Dorsal scales granularlaterally and dorsally, scattered conical tubercles on both anks o body are posteriorlyprojected, dorsal keeled scales 33 in a longitudinal count, orming our rows rom thepost occipital region to the insertion o the orelimbs, scattered at the rest o dorsumand becoming our rows again at the insertion o hind limbs, separated by granularscales; transverse dorsal count enlarged rows at midbody) at th transverse ventralscale row 48, at 10th transverse ventral scale row 40, at 15th transverse ventral scale

row 38; lateral scales on body near insertion o orelimb small, conical dorsally, mostlygranular; ventrals squarish and juxtaposed; complete longitudinal ventral count 23;longitudinal ventral scale rows at midbody 7; 47 scales around midbody; anterior preanal plate scales two; posterior preanal plate scales three; dorsal and dorsolateral suraceo tail with at least 62 whorls o enlarged keeled scales; midventral subcaudals squarish,smooth. Limbs pentadactyl; digits clawed; orelimb reaching anteriorly to th inralabial; anterolateral and dorsal brachial scales keeled, imbricate; midbrachial anterodorsal scale at least twice as large as adjacent scales, slightly keeled; anteroventral, ventral,and posteroventral scales granular, imbricate, conical; antebrachial scales polygonal,

keeled; medial antebrachial scales small, polygonal, smooth; dorsal manus scales polygonal, imbricate, smooth; palmar scales small, polygonal, smooth; dorsal scales onngers smooth, quadrangular, covering dorsal hal o digit, overhanging supradigitalscales, two on I, seven on II, ten on III, twelve on IV, 9/8 on V; subdigital scales 6/5 on


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I, 9/10 on II, 15/14 on III, seventeen on IV, 11/10 on V; dorsal thigh scales granular,some scales bearing conical tubercles, anterodorsal thigh scales polygonal, largest thanadjacent scales, slightly keeled; posterodorsal thigh scales small, granular, dorsalmostscales tuberculate, arranged irregularly, ventral thigh scales rounded, smooth, severaltimes smaller than anterodorsal thigh scales; anterior and anteromedial shank scales

granular, yuxtaposed, some scales bearing conical tubercles, anteriormost scales at thesame size than lateral, posterolateral, and posteromedial shank scales; lateral, posterolateral, and posteromedial shank scales granular, juxtaposed, some bearing conicaltubercle; scales on dorsal surace o digits single, quadrangular, smooth, overhangingsupradigital scales, our on I, 8/9 on II, thirteen on III, 18/19 on IV, 10/9 on V; subdigital scales single or double, 9/8 on I, 10/11 on II, 18/17 on III, 26/23 on IV, 13/14on V; emoral pores 2021.

Te completely everted hemipenis is an acapitate organ without a medial welt;apex with two large protrusions separated by the distal end o the sulcus spermaticus;

sulcus spermaticus single, ounces lacking calcied spines and orming two chevronson distal hal o hemipenis; sulcate ounces about as wide as asulcate ounces; asulcateounces becoming shorter distally, ve in the basal hal and thirteen in each protru

Fgure 4.Potamites species rom Peru. Potamites montanicola CORBIDI, 08324) APotamites stran-

gulatus strangulatusrom Cordillera de Kampankis, Amazonas, northern Peru not collected individual)

B photo by Alessandro Catenazzi; Potamites ecpleopusromCordillera de Kampankis, Amazonas, northern

Peru CORBIDI 09516) C photo by Alessandro Catenazzi; Potamites strangulatus trachodusrom Cordil

lera Escalera, San Martin, northern Peru CORBIDI 06368) D photo by Pablo J. Venegas.


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sion, distal chevrons separated by a small expansion pleat; sulcus spermaticus single,anked by a broad naked expansion pleat widened distally.

Coloration in preservative. Dorsal surace o head, dorsal surace o body, tail,limbs, hands and eet dark brown; lateral ocelli present in two pairs with a white

rounded center; labial region, throat, chest and venter pale blue with scattered blackblotches. Ventral suraces o orelimbs pale yellow with black blotches; ventral suraceso thighs pale brown with black blotches above position o emoral pores; ventral suraces o hands and eet pale brown becoming darker at ngers III, IV and V; ventralsurace o tail pinkish brown with difuse black blotches.

Coloration in life Fig. 1ad). Dorsal and lateral suraces, o the head dark brown;rostral and rst supralabial scale same color as head; superior labium is bluish with darkspots rom second supralabial; iris reddish gold; ventral surace o head, pregular andgular region black with pale blue irregular blotches. Dorsal surace o body same coloras head, darker than anks; lateral surace o body brown with a pair o black ocelli onboth sides, beore and ater insertion o orelimbs, each ocelli bearing a white center,coinciding with a conical tubercle; tuberculate scales darker than granular scales; ventral surace o body same color as ventral surace o head. Limbs, similar to body, ventral surace o arms yellowish brown, ventral surace o legs creamy brown. Colorationo dorsal surace o tail like that o body, ventral surace o tail reddish brown, only redat the base and.

Variation Fig. 1, d). In the type series, azygous scales between rontonasal andprerontal scales) are present in six specimens CORBIDI 0832428, 08335) includingmales and emales, and are absent in ve specimens CORBIDI 06957, 08322, 08334,08336, 08338); inralabials usually ve, our present in CORBIDI 06957, 08324,08327 and six in CORBIDI 08322, 08325; lateral ocelli are present in two pairs, rstpair located anteriorly to the insertion o orelimbs and the second one posteriorly, thewhite spot at the middle o the ocelli includes usually one conical tubercle; with twoconical tubercles at the right side in CORBIDI 08327 and at both sides in CORBIDI08338. CORBIDI 06957, 08324, 08327, 0833435 have more than two pairs o lateral ocelli and CORBIDI 08336, 08338 lack o lateral ocelli; in lie, ventral coloration

in males is usually pale blue, with black blotches in CORBIDI 08322, and yellow withblack blotches in CORBIDI 08324, in emales the throat and chest can be creamywhite or dark brown, belly creamy white or darker bearing or lacking dark blotches.Sexual dimorphism is evident in emales, because all o them are lacking emoral pores,urthermore other diferences between emales and males are the SVL maximum SVLin emales 56 mm, maximum SVL in males 68 mm) and the head width Maximumhead width in emales 3.2 mm and maximum head width in males 13.23 mm). Seeable 1 or variation in selected morphometric and squamation characters in the specimens examined.

Etymology. Te specic epithet montanicola is a compound rom the spanishword montano, adjective to describe something rom a mountain, and the latin sux icola or inhabitant and reers to the montane orests where this species lives.


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Fgure 5. Map showing the type locality and the second site o occurrence Cajadela Native Community)

or Potamites montanicola.

table 1. Morphometric and pholidosis characters in P. montanicola. Individuals measured include: seven

males and three emales, all adults. Range is ollowed by mean value and standard deviation in parenthesis.

a(n=10)Potamites montanicol

Max SVL mm)males 68.6

emales 56.1

Head length/Head widthmales 1.41.6 1.53+0.06)

emales 34.6 3.59+0.87)

Number o emoral poresmales 1921 20.28+0.75)

emales 0 0.00+0.00)

Azygous scales 01 0.60+0.51)

Number o genials 3 3.00+0.00)

Number o postparietals 1011 10.30+0.48)

Number o scales around midbody 4250 46.10+2.84)

Longitudinal dorsal count 3237 33.80+1.81)Number o longitudinal ventral scale rows 2123 21.70+0.67)

Number o transversal ventral scale rows 68 0.90+0.99)

Lamellae under 4th nger 1317 16.20+1.31)

Lamellae under 4th toe 2227 24.80+1.54)

Distribution and natural history.Potamites montanicolais known rom two localities in the Andes in southern Peru Fig 5), both separated by 64 km air line and located at the Cordillera de Vilcabamba and Apurimac river valley, the known altitudinal


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range is between elevations 1570 and 2100 m. Te holotype and most o the specimenso the type series were ound on the sides o a stream, which were 3 meters wide withstones and rocks as substrate. Te vegetation in the area was riverside vegetation mainlycomposed o:Miconiasp., Gordoniasp. and Guareasp. and herbs rom the amily Ru

biaceae and Melastomataceae. Climbers vines and lianas) were diverse and relativelycommon and include species o the amily Celatraceae, Polygalaceae and Campanulaceae. All individuals were ound perching on rocks and stones at sides o the stream atnight. In some cases, individuals were observed swimming in the middle o the stream,or using the stream to escape. No other lizard species were recorded at the type locality,but on the same stream we observed the vipers Bothriopsis taeniataand Lachesis muta.

Amphibians also reported here include Hypsiboas balzani, Hyalinobatrachium bergeri,Osteocephalus mimeticus, Pristimantis rhabdolaemusand Pristimantis mendax. Te second locality where P. montanicolawas collected specimen CORBIDI 06957) is a secondary orest, close to the Chiquintirca Cajadela road. In this site, arboreal vegetationincludes species oCecropiasp., and abundant bushes. Te specimen CORBIDI 06957was ound during the day near a creek with substrate mainly composed o lea litterand allen trunks. In this locality, P. montanicolais sympatric with the tropidurid lizard Stenocercus torquatusand the anurans Hyalinobatrachium bergeri, Hypsiboas balzani,Pristimantis mendaxand Pristimantis rhabdolaemus. No snakes were reported.

Remarks. Te genus Potamitesis composed o species that are primarily lowlanddistributed. One o these, P. ecpleopus, has the largest distribution range in Potamitesdespite its unclear taxonomy). Sinitsin 1930) assigned the populations oPotamitesin Peren and Chanchamayo valleys, central Peru, as paratypes oP. ocellatus, but later,Vanzolini 1995) assigned them as part o the Potamites ecpleopuscomplex and not asP. ocellatussensu stricto. P. ocellatuswas then validated and redescribed rom only onespecimen rom El Beni, Bolivia Vanzolini 1995). Tese taxonomic uncertainties render the species assignment o the populations rom Chanchamayo and Peren unclear.Several surveys to Chanchamayo and Peren rom 2008 to 2010 by the senior authorresulted in unsuccessul eforts to nd the populationsmentioned by Sinitsin 1930).Even though P. montanicolamost northern locality Cajadela Community) is 250 Km

air line rom Chanchamayo and Peren valleys, P. montanicola has a higher verticaldistribution range than those populations by 1000 m). Tis evidence, along withmorphological characteristics, distinguish and validate P. monticola as distinct. Furthermore, P. montanicolais the only species described or Peruthat occurs above 2000meters o elevation and to be reported as exclusive rom montane orests. Further studies on the taxonomic identity and the populations oP. ecpleopuswould help to clariytheir status and to determine i they belong to a described or undescribed species.

Acknowledgmens

We would like to thank Gunther Khler and an anonymous reviewer or their constructive comments that improved the manuscript during its review. GC thanks Csar


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L. BarrioAmors and Karen Siuing or their valuable comments to this manuscriptand Caterina H. Cosmpolis or her help with the geographical inormation and mapdesigning. Te authors are very grateul to Programa de Monitoreo Biolgico COGAand Knight Piesold Consultores S.A. or their support to carry out eldwork, to Karla

Garca and Elvis Meza or their assistance during eldwork, to Alredo Mayta andJaime Valenzuela or their logistic support in the eld and to Joaqun Ugarte and Edgardo Enrquez or trusting the work o GC.

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nophthalmidae), with new genera or species oNeusticurusand Proctoporus. ZoologicalJournal o the Linnean Society 143: 405416. doi: 10.1111/j.10963642.2005.00145.x

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thalmidae) rom Peru, with the description o three new species and a key to the Peruvian

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Appendx 1

Specimens examined:Potamites ecpleopus. PERU: AMAZONAS: Condorcanqui, Cordillera de Kam

pankis, CORBIDI 09436, 09509, 09516, 09563-67, 09576-78; CUSCO: La Convencion, Comunidad Nativa angoshiari CORBIDI 031113; Pongo de Mainique Santuario Nacional Megantoni CORBIDI 05519; Campamento Kinteroni COR

BIDI 0699293, 06997; Comunidad Nativa Monte Carmelo CORBIDI 08331.33;Comunidad Nativa Chokoriari CORBIDI 0849899; LOREO: Datem del Maraon, Andoas CORBIDI 01077, 04637, 0464143, 04746, 04751, 04981, 05056; Loreto, San Jacinto CORBIDI 0120809; Singasapa CORBIDI 06529; Rio Corrientes
http://dx.doi.org/10.1111/j.1096-3642.2005.00145.xhttp://dx.doi.org/10.1655/03-93http://dx.doi.org/10.1655/03-93http://dx.doi.org/10.1111/j.1096-3642.2005.00145.x


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CORBIDI 02731; Ro Yanayacu CORBIDI 05989; Maynas, Aguas Negras CORBIDI 0280; Redondococha CORBIDI 0286; Requena, Sierra del Divisor CORBIDI0224648, 02585, 04138, 04144, SAN MARIN: Moyobamba, Comunidad Morrode Calzada CORBIDI 01360; Picota, Chambrillo CORBIDI 08834, Lamas, Pongo

de Cainarachi CORBIDI 09059.Potamites strangulatus strangulatus. PERU: AMAZONAS: Condorcanqui, Cordil

lera de Kampankis, CORBIDI 09352, 09397, 09399, 09411, 0952324.Potamites strangulatus trachodus. PERU: AMAZONAS: Bagua, Chonza Alta

CORBIDI 07390744; CAJAMARCA: San Ignacio, Alto Ihuamaca CORBIDI 087880; SAN MARIN: Moyobamba, Comunidad Nativa Paitoja CORBIDI 0123741,0126263, 03145, 03147, 03192; Fundo Pabloyacu CORBIDI 01392; Rioja, ZonaReservada Miskiyacu CORBIDI 0142930, 01434, 01437, 01441, 0327475; arapoto, Cordillera Escalera CORBIDI 0636669, 06383, 06773.

Potamites montanicola 2012

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