700 



INDEX. 



Sirembo, 2442. 



Siren, 265, 269, 280, 290, 

 293, 3072. 



Sirenia, 542. 



Sirenoidei, 259. 



Siskin, 418K 



Sisor, 2221. 



Sistrurus, 3721. 



Sitana, 3502. 



Sitta, 4771. 



Sivatherium, 590 1. 



Skates, 154i. 



Skate-toothed dog, 1512 



Skimmer, 468 1. 



Skip-jack, 239. 



Skipper, 2311. 



Skittle-dog, 1522. 



Skua, great, pomato- 

 rhine, 4672. 



Skull, Amphibia, 267 ; 

 birds, 426 ; Aniia, 

 182; Chelonia, 406, 

 407; Crocodilia, 374, 

 375, 376 ; Dipnoi, 

 250 ; Elasmobranchii 

 126, 127, 138 ; Gym- 

 nophiona, 301, 302; 

 lizards, 338, 341 ; 

 Mammalia, 484 ; 



Marsipobranchii, 98- 

 103; Polypterus, 172, 

 173; Reptilia, 318; 

 snakes, 357, 358 ; 

 Teleostei, 189. 



Skulpin, 2411. 



Skunk, 6241. 



Slip, 2402. 



Sloths, 5442 ; ground, 

 5451. 



Slow-worm, 3521. 



Sraaris, 236i. 



Smear-dab, 2402. 



Smelt, 2161. 



Smew, 4631. 



Srailiogaster, 2202. 



Smilod^on, 619i. 



Sminthopsis, 539i. 



Srainthus, 6342. 



Smith-frog, 3111. 



Smolt, 2152. 



Smooth-hound, 1512. 



Smooth-snake, 3672. 



Snake-bu-d, 4612. 



Snakes, burrowing, 3651 

 3661 . rattle, 3712, 

 3721. 



Snake-eating cobra, 

 3702. 



Snapper, 2352. 



Snapping turtle, 4 1 31. 



Snipe-fish, 2291. 



Snipe, jack, 4671. 



Soft-shelled turtle, 415. 



Solan goose, 4612. 



Sole, little, 2402 . band- 

 ed, lemon, 2402. 



Solea, 2402. 



Solenocytes, 28, 29. 



Solenodon, 6402. 



Solenognathus, 230i. 



Solenorhyuchus, 2292. 



Solenostoma, 210, 2292. 



Soleotalpa, 2402. 



Solitaire, 469i. 



Somactids, 54. 



Somateria, 463i. 



Somatic nerves, 76. 



Somites of Amphioxus 

 34 ; of head, 73. 



Somniosus, 1522. 



Sorex, 6392. 



Soricidens, 236i. 



Soriculus, 6401. 



Sorubim, 2212. 



Sotalia, 564i. 



Souslik, 6322. 



Spade-foot, 3102. 



Spalacopus, 635i. 



Spalacotherium, 5401. 



Spalax, 6342. 



Sparagmites, 315i. 



Sparassodontidae, 5402. 



Sparisoma, 238i. 



Sparnodus, 236'. 



Sparrow, house-, tree-, 

 4781 ; hedge-, 4752. 



Sparus, 202. ' 



Spathiurus, 182. 



Spathoscalabotes, 3492. 



Spatularia, 163, 164, 

 168, 169. 



Spatulariidae, 170. 



Spawning, Amphioxus, 

 30 ; fishes, 91. 



Spear-dog, 1522. 



Spelerpes, 226, 293, 

 296, 305. 



Spermaceti, 5621. 



Spermatophores, Am- 

 phibia, 296. 



Spermophilus, 6322. 



Sperm-whale, 562i. 



Sphaerodactylus. 3492. 



Sphaerodon, 236 1. 



Sphagebranchus, 223i, 

 225'. 



Sphargis, 4122. 



Sphenacanthus, 151i. 



Sphenisciformes, 460^. 



Spheniscus, 4602. 



Sphcnodon, 317, 318, 

 320, 321, 334. 



Sphenoidal, 60. 



Sphenophryne, 3121. 



Sphingurus, 635-. 



Sphyraena, 197, 2312. 



Sphyrna, 1.33, 134,1512. 



Spicara, 236'. 



Spilotes, 3681. 



Spina sternalis, 432. 



Spinal cord, birds, 435. 



Spinal nerves, 47. 



Spinal accessory nerve, 

 321 ; snakes, 362. 



Spinax, 121, 1522. 



Spines, Elasmobranchii, 

 122. 



Spinivomer, 2242. 



Spino-occipital nerves, 

 73. 



Spiny-rayed fish, 233i. 



Spiracle, 48, 66 ; Am- 

 phibia, 278 ; Cetacea, 

 554 ; Elasmobranchii, 

 120 ; tadpole, 299. 



Spiral valve, 64; Dipnoi, 

 252. 



Splanchnocoele, 40. 



Spleen, Amphibia, 290 ; 

 birds, 442 ; Dipnoi, 

 252 ; Mammalia, 512 ; 

 Reptilia, 327. 



Spoonbill, 4612. 



Sprat, 2142. 



Spring-bok, 5911. 



Spnr-dog, 1522. 



Spv-slange, 3702. 



SquaU, 150. 



Squaliobarbus, 2201. 



Squalodon, 5622. 



Squalorajidae, 158. 



Squalus, 1521. 



Squamata, 334. 



Squatina, 125, 126, 153. 



Squirrel, common, flying 

 ground, spiny, 6322. 



Stagonolepis, 372, 381. 



Stapes, 267, 498. 



Star-gazer, 2432. 



Starling, American,478i ; 

 rose-coloured, 4772. 



Staurotypus, 413i. 



Steatomys, 6341. 



Steatornis, 4722. 



Stegocephali, 3132. 



Stegodon, 572'. 



Stegonotus, 368i, 



