504 REPTILES, AMPHIBIANS AND FISHES 



Leptocephalus morrisii, 351. 

 Leptodactyliis, nest, 189. 

 Leuciscus balteatus, variation, 362. 

 Leiiciscus idus, variation, 370. 



— lusciosits, 402. 



Lialis burtoni, vestiges of limbs, 115. 

 Lichen bark-gecko, 87. 

 Light, relation to fish-life, 294. 



— effect on flounders, 374. 



— effect on Synodonlis, 375. 

 Limbless Amphibia, no. 

 Limbs of Amphibia, 158. 



— of Urodela, 161. 



Lime, effect on Amphibia, 181. 

 Linophryne lucifer, luminous organs, 



419. 

 Lionurus jilicauda, 289. 

 Liopelma, distribution, 179. 

 Lirns perciformis, habits, 306. 

 Lissamphibia, 161. 

 Littoral region, 269. 

 Lizards, fracture of tail, 151. 



— distribution, 41. 



— fighting of males, 66. 



— food, 51. 



Locomotion, in Amphibia, 222. 



— in fishes, 231. 

 Loricariidae, nests, 324. 



— sexual characters, 311. 

 Lophiidae, luminous organs, 418. 

 Loxocemus bicolor, 42. 

 Lucifuga, blindness, 401. 



— viviparity, 333. 



— voice, 407. 



Luminous organs in fishes, 410. 



— structure, 422. 



Lumpsucker, care of eggs, 325, fig., PI. 



XXVII, A. 

 Lungs, absence in some Salamanders, 



225. 



— of Amphibia, 159. 



— development in Amphibia, 212. 



— evolution, 175, 381. 

 Lung-fishes, aestivation, 2gg. 



— antiquity, 260. 



— evolution, 260. 



— lungs, 383, 384. 



— nostrils, 241. 



— larvae, 341. 

 Luth, 107. 



— shell, 125. 

 Luvarus imperialis, 285. 

 Lycosuchus, 10. 



Lygosoma lineo-punctatum, 115. 

 Lytoloma, 135. 



Maasbanker, 279. 

 Mabuia, 44. 



— eyelid, 116. 



Mcintosh, Prof., on habits of butter-fish, 

 326. 



Mackerel, migrations, 295. 

 MacrQpodus, air-breathing organ, 380. 



— nest, 324. 

 Macropoma, 259. 

 Macnivus, 289. 

 Madagascar, Amphibia of, 180. 



— reptilian fauna, 39, 42. 

 Maigre, 277, 406. 

 Malacopterygii, 258, 264. 

 Malacosteus, 415. 



Malay Islands, Amphibia of, 180. 



Malopterurns, electric organs, 433, 435. 



Malleus, origin, 9. 



Mallotus, 274. 



Malthe vespertilio, 377. 



Mammals, evolution, 8, 9, 17, 26. 



Mammoth Cave, fish of, 3g8. 



Mancalius uranoscopus, 289. 



Mandible in reptiles, 8, g. 



Mangoe fish, 280. 



Marine reptiles, 32, 33. 



Mastodonsaurus, 172. 



Mata-mata terrapin, 54. 



Maurolicus pennantii, 414. 



Megalobatrachus maximus, 203. 



Megalocercus abyssorum, 479. 



Megalophrys longipes, 191. 



Megalosaurus, 23, 96, 129. 



Megalotriton, 173. 



Mclamphas beanii, 286. 



Melanesia, Amphibia, 180. 



Membrane bones, 237. 



Mclanocctus murrayi, 289, 418. 



Melanonus gracilis, 289. 



Menhaden, 275. 



Menobranchus lateralis, 164. 



Merriamia, 134. 



Mesozoic epoch, reptiles of, 7. 



Metamorphosis, of Amphibia, 210. 



— of Ascidians, 485, 487. 



— of fishes, 341. 

 Metopoceros comutus, 62. 

 Metriorhynchus, 20, 103, fig., 21. 

 Micropogon, voice, 406. 

 Midwife toad, 192. 

 Milk-snake, 65, 82, 150. 

 Migrations, of fishes, 295. 



— of reptiles, 45. 



Minous inermis, association with hy- 



droid, 301. 

 Miocene, Amphibia, 173. 

 Miolania, 39. 

 Misgiirnusfossilis, intestinal respiration, 



379- 

 Mocassins, colour, 82. 

 Modifications, in flat-fishes, 375. 

 Moebius, on Balistes aculeatus, 409. 

 Molge, 162, 198, igg. 

 Molgula oculata, 481. 

 Moloch horridus, 88, gi, 117. 

 Monacanthtis, 272. 



