498 REPTILES, AMPHIBIANS AND FISHES 



Ceratias nranoscopus, luminous organs, 



418. 

 Ceratiidae, habitat, 289. 

 Ceratodus, air-bladder, 304. 



— food, 291. 



— fossil remains, 256. 



— habitat, 269. 



— reproduction, 319. 



Ceratohyla bubalus, reproduction, 194. 

 Cestracion, 254. 

 Cetomimus, 288. 

 Chaetodontidae, 271. 

 Chalcides, 44. 



— coloration, 78. 



— limbs, 115. 



Chamaeleon, change of colour, 83. 

 Chamaeleon-iguanas, 84. 

 Chamaeleon-lizard, form of body, 93. 

 Chamaeleons, coloration, 78. 



— distribution, 40. 



— food, 51. 



— form of body, 93. 



— inflation of body, 151. 



— toes, 94. 



— tongue, 52, 146. 



— voice, 64. 

 Champsosaurus, 19. 



— relation to Squamata, 27. 

 Chauliodus sloani, luminous organs, 



414. 

 Chauna, air-breathing, 380. 

 Chauvin, Marie von, on axolotl, 216. 

 Chelone, food, 47. 

 Chelone my das, 107. 

 Chelonia, dermal armour, 123. 



— distribution, 39. 



— geological history, 28. 



— horny shields, 125. 



— origin, 22. 



— sexual differences, 63. 



— temporal arch, 10. 

 Chelonidae, antiquity, 28. 



— structure, 107, 108. 

 Chelydridas, adaptation, 109. 



— distribution, 40. 

 Chelys fimbriata, 54. 

 Chelytherium, period, 28. 

 Chicken-snake, colour, 82. 

 Chimaeroids, eggs, 316. 



— intromittent organs, 308. 



— reproduction, 314. 

 Chirolepis, 257. 

 Chiroleptes platycephalus, 178. 

 Chiromantis, nest, 189. 

 Chlamydoselachus, 253. 

 Chlorophis, colour, 85. 

 Chlorophthalmidas, absence of luminous 



organs, 412. 

 Chologaster, 399. 

 Chondrostei, air-bladder, 383. 



— evolution, 257. 



Chromatophores, in Amphibia, 220. 

 Chrosopelea omata, 34. 

 Chrysemys picta, courtship, 66. 

 Cichlidae, mouth-gestation, 328. 

 Cinoliosaurus, 105. 

 Cinosternidae, distribution, 40. 

 Cinosterniun odoratum, stridulation, 63. 

 Ciona intestinalis, 481. 

 Cladoselache, 252. 

 Clarias, air-breathing, 380. 



— aestivation, 300. 

 Classification of Amphibia, 168. 



— of fishes, 246. 



— of lancelets, 463. 



— of reptiles, 4, 5. 



— of Tunicata, 479. 

 Clavelina lepadiformis, 481. 

 Clavelinidae, 480. 



Clawed toad, 167. 



Clemmys leprosa, disease, 59. 



odour, 64. 



— picta, 60. 

 Clepsydropidae, no. 

 Climatius, 252. 



Climbing perch, aerial respiration, 379. 



aestivation, 299. 



Clinus, viviparity, 333. 

 Cloaca, of Elasmobranchs, 245. 



— of reptiles, 13. 

 Cloudy Bay Cod, 282. 

 Clupea brevoortia, 275. 



— sapidissima, 275. 

 Clupeidae, evolution, 258. 



— spawning, 343. 

 Cnemiophorus, colour, 76. 

 Cobra, inflation of hood, 150. 

 Cod, abundance, 262. 



— association with jelly-fishes, 302. 



— tail and fins, 240. 

 Ccelacanthidae, 256. 

 Ccelurus, skeleton, 129. 

 Coffer-fishes, 272. 



Collar, of Cephalodiscns, 493. 



— of Enteropneusta, 489. 

 Coloration of flat-fishes, 365. 



— of Amphibia, 220. 



— of reptiles, 75. 



Coluber quadrivittatus, colour, 82. 

 Colubridae, distribution, 43. 

 Colubrine snakes, colour, 82. 

 Comephoridae, 321. 

 Comephortts, viviparity, 338. 

 Commensalism in fishes, 302. 

 Compsognathus longipes, bipedal gait, 



96. 

 Condyles, occipital, 2, 8. 



— of Amphibia, 159. 

 Conger, eggs, 356. 



— larva, 351. 



— reproduction, 349. 



— sound produced by, 407. 



