ul liSlide 1li liPart 3 Fishes an introductionli liSlide 2li liFishesli liSlide 3li liVertebratali liSlide 4li liFigure 242 Vertebrata Fishesli liSlide 5li liFish Diversity ca 25000 described species 482 families with living representativesli liSlide 6li liLargest 12m Smallest 1cmli liSlide 7li liLargest 12m Smallest 1cmli liSlide 8li li8370m 27455 feet Deepest Abyssobrotula galatheae Highest 5200m 17000 feetli liSlide 9li liHottest Coldest up to 438 C 1108F -186 C 286F Cyprinodon pachycephalusli liSlide 10li liHypersaline Cyprinodon variegatus Up to 3x sea waterli liSlide 11li liTorrential water Colorado River Fishesli liSlide 12li liTrogloglanis pattersoni Satan eurystomus Cavesli liSlide 13li liAnoxic waterli liSlide 14li liAirbreathingli liSlide 15li liDietli liSlide 16li liReproductionli liSlide 17li liLife Spans several weeks 150+ yearsli liSlide 18li liPrimitive and early fishesli liSlide 19li liLiving jawless fishes = agnathali liSlide 20li liJawless Fishes livingli liSlide 21li liSlide 22li liClass Myxini Hagfishesli liSlide 23li liWere craniates but not vertebratesli liSlide 24li li*distinct head *tripartite brain *paired specialized sense organs *1 pair semicircular canals *glomerular kidney *2 pairs semicircular canals *vertebrae Craniate Vertebrateli liSlide 25li liSlide 26li liSlide 27li liHabitat Life Historyli liSlide 28li liHagfishes at homeli liSlide 29li liSlime glands and slimeli liSlide 30li liHagfish Eggsli liSlide 31li liMxyine glutinosa L 1 Family 6 genera ca 40 species Class Myxini hagfishesli liSlide 32li liPhysiology very invertebrate- likeli liSlide 33li liHuman interactionsli liSlide 34li liHagfish fisheryli liSlide 35li liEel Skinli liSlide 36li liSlide 37li liVertebrata Vertebratesli liSlide 38li liVertebrata at least 2 semicircular canals vertebrae fancy vertebrate physiologyli liSlide 39li liLampreys are vertebratesli liSlide 40li liClass Cephalaspidomorphi Lampreysli liSlide 41li liWe have vertebraeli liSlide 42li li2 families 6...