502 REPTILES, AMPHIBIANS AND FISHES 



Grass-snake, dentition, 144. 



— in a house, 46. 

 Grayia omata, colour, 80. 



Greene, on phosphorescence, of Porich- 



thys, 419. 

 Greenland shark, 316. 

 Green turtle, food, 47. 

 Grey mullets, food, 291. 

 Gronias nigrilabris, 491. 

 Ground lizards, protective coloration, 



87. 

 Growth of fishes, 347. 



— of reptiles, 55. 

 Guanin, 423. 



Gudger, on spawning of Pterophrync, 



328. 

 Giinther on emission of light by Myc- 



tophum, 411. 

 Guppy, on ditto, 411. 

 Gymnarchus, nest, 323. 



— size of eggs, 345. 

 Gymnodonts, habitat, 272. 

 Gymnophiona, 167. 

 Gymnotus electricus, 432. 



Hag-fishes, 442. 

 Halosauridae, habitat, 286. 



— luminous organs, 416, 417. 

 Halosauropsis rostrdtus, habitat, 286. 



— luminous organs, 417. 



— structure of organs, 431. 

 Harder, 279. 



Harpodon nehereus, emission of light, 

 412. 



habitat, 280. 



Harriotta, 290. 



— claspers, 309. 

 Hearing of fishes, 391. 

 Heart of Amphibia, 160. 



— of Ascidians, 477. 



— of fishes, 242. 



— of reptiles, 13. 

 Hellbender, 163. 



Hcloderma suspectum, colour, 80, 88. 



— fangs, 146. 



Helodermatidse, dermal bones, 118. 

 Hemichorda, 489. 



Hemidactylus tuvcicus, form of body, 



92. 

 Hensel, Dr., on breeding of Gcophagus, 



330. 

 Herdman, Prof., on Ascidia, 474. 

 Hermaphroditism, of Ascidians, 477. 



— of Myxine, 445. 



Heron, Sir R., on telescope fish, 369. 

 Herpetodryas, colour, 85. 

 Herring, abundance, 262. 



— auditory organ, 393. 



— eggs, 343. 



— evolution, 258. 



— migrations, 296. 



Heterobranchus, air-breathing organs, 



386. 

 Heterocercal tail, 235. 

 Heterodon platyvhinus, feigning death, 



155- 

 Heteroplenron, 463. 

 Heterotis, nest, 324. 

 Hexagrammidae, 276. 

 Hibernation of Amphibia, 182. 



— of fishes, 298. 



— of reptiles, 43. 

 Hickory-shad, 291. 

 Hippocampus, reproduction, 331. 

 Hissing of snakes, 150. 



Hog-nosed snake, feigning death, 155. 

 Holocentrum, air-bladder, 259. 

 Holoptychius, and fig., 255. 

 Holostei, evolution, 257. 

 Homea okinoseana, 446. 

 Homocercal tail, 239. 

 Homoeosaurus, ig. 



Hoppin, Miss, on Typhlichthys, 400. 

 Horned pout, nest, 324. 

 Horned toad, colour, 87. 



ejection of blood, 147. 



shape of body, 91. 



spines, 117. 



Horned viper, 112. 



House of Appendicularians, 480. 



— of Cephalodiscus, 494. 

 Hydrophiinas, colour, 87. 



— adaptations, 106. 



— distribution, 43. 



— viviparity, 68. 

 Hydrophis, 107. 



Hyla arborea, adhesion, 224. 



— fabcr, nurseries, 188. 



— goeldi, reproduction, 194. 

 HylcEobatrachus crayi, 173. 

 HylcEosauvus, dermal armour, 121. 

 Hylambates breviceps, reproduction, 198. 

 Hylella platycephala, nest, 190. 

 Hylidae, 166. 



— distribution, 179. 



— phalanges, 224. 

 Hylodes, nest, igo. 



— phalanges, 224. 



— lineatus, eggs, 191. 



— martinicensis, respiration of embryo, 



227. 

 Hyperodapedon, 19. 



— dentition, 143. 



— food, 52. 



Hypnos, electric organs, 432. 

 Hypogeophis, reproduction, 206. 

 Hypophysis, 484. 

 Hypsirhina hydrinus, 107. 



ICHTHYOMYZON, 453. 

 Ichthyophis glutinosus, reproduction, 

 206. 



