700 



INDEX. 



Sirembo, 244 2 . 



Siren, 265, 269, 280, 290, 

 293, 307 2 . 



Sirenia, 549. 



Sirenoidei, 259. 



Siskin, 478 1 . 



Sisor, 222 1 . 



Sistrurus, 372 1 . 



Sitana, 350 2 . 



Sitta, 477 1 . 



Sivatherium, 590 1 . 



Skates, 154 1 . 



Skate-toothed dog, 151 2 



Skimmer, 468 1 . 



Skip-jack, 239. 



Skipper, 23 1 1 . 



Skittle-dog, 152 2 . 



Skua, great, pomato- 

 rhine, 467 2 . 



Skull, Amphibia, 267 ; 

 birds, 426; Amia, 

 182; Chelonia, 406, 

 407; Crocodilia, 374, 

 375. 376 ; Dipnoi, 

 250 ; Elasmobranchii 

 126, 127, 128; Gym- 

 no phiona, 301, 302; 

 lizards, 338, 341 ; 

 Mammalia, 484 ; 

 Marsipobranchii, 98- 

 103 ; Poly pterus, 172, 

 173; Reptilia, 318; 

 snakes, 357, 358 ; 

 Teleostei, 189. 



Skulpin, 241 !. 



Skunk, 6241. 



Slip, 240 2 . 



Sloths, 544 2 ; ground, 

 5451. 



Slow- worm, 352 *. 



Smaria, 236 1 . 



Smear-dab, 240 2 . 



Smelt, 216 1 . 



Smew, 463 1 . 



Smiliogaster, 220 2 . 



Smilodon, 619 1 . 



Sminthopsis, 539 1 . 



Sminthus, 634 2 . 



Smith-frog, 31 1 1 . 



Smolt, 215 2 . 



Smooth-hound, 151 2 . 



Smooth-snake, 367 2 . 



Snake- bird, 461 2 . 



Snakes, burrowing, 365 1 

 366 1 ; rattle, 37 1 2 , 

 3721. 



Snake-eating cobra, 

 370 2 . 



Snapper, 235 2 . 



Snapping turtle, 41 3 1 . 



Snipe-fish, 229 1 . 



Snipe, jack, 467 l . 



Soft-shelled turtle, 415. 



Solan goose, 46 1 2 . 



Sole, little, 240 2 ; band- 

 ed, lemon, 240 2 . 



Solea, 240 2 . 



Solenocytes, 23, 29. 



Solenodon, 640 2 . 



Solenognathus, 230 1 . 



Solenorhynchus, 229 2 . 



Solenostoma, 210, 229 2 . 



Soleotalpa, 240 2 . 



Solitaire, 469 1 . 



Somactids, 54. 



Somateria, 463 1 . 



Somatic nerves, 76. 



Somites of Amphioxus 

 34 ; of head, 73. 



Somniosus, 152 2 . 



Sorex, 639 2 . 



Soricidens, 236 1 . 



Soriculus, 640 1 . 



Sorubim, 221 2 . 



Sotalia, 564 1 . 



Souslik, 632 2 . 



Spade- foot, 310 2 . 



Spalacopus, 635 1 . 



Spalacotherium, 540 1 . 



Spalax, 634 2 . 



Sparagmites, 315 1 . 



Sparassodontidae, 540 2 . 



Sparisoma, 238 l . 



Sparnodus, 236 '. 



Sparrow, house-, tree-, 

 478 1 ; hedge-, 475 2 . 



Sparus, 202. ~ 



Spathiurus, 182. 



Spathoscalabotes, 349 2 . 



Spatularia, 163, 164, 

 168, 169. 



Spatulariidae, 170. 



Spawning, Amphioxus, 

 30 ; fishes, 91. 



Spear-dog, 152 2 . 



Spelerpes, 226, 293, 

 296, 305. 



Spermaceti, 562 1 . 



Spermatophores, Am- 

 phibia, 296. 



Sperm ophilus, 632 2 . 



Sperm-whale, 562 1 . 



Sphaerodactylus. 349 2 . 



Sphaerodon, 236 1 . 



Sphagebranclms, 223 1 , 

 225 1 . 



Sphargis, 412 2 . 



Sphenacanthus, 151 l . 



1 Sphenisciformes, 460 2 . 



Spheniscus, 460 2 . 



Sphenodon, 317, 318, 

 320, 321, 334. 



Sphenoidal, 60. 



Sphenophryne, 312 1 . 



Sphingurus, 635 2 . 



Sphyraena, 197, 231 2 . 



Sphyrna, 133, 134, 151 2 . 



Spicara, 236 1 . 



Spilotes, 368 1 . 

 : Spina sternalis, 432. 

 I Spinal cord, birds, 435. 



Spinal nerves, 47. 



Spinal accessory nerve, 

 321 ; snakes, '362. 



Spinax, 121, 152 2 . 



Spines, Elasmobranchii, 

 122. 



Spinivomer, 224 2 . 



Spino-occipital nerves, 

 73. 



Spiny-rayed fish, 233 1 . 



Spiracle, 48, 66 ; Am- 

 phibia, 278 ; Cetacea, 

 554 ; Elasmobranchii, 

 120 ; tadpole, 299. 



Spiral valve, 34; Dirnioi, 

 252. 



Splanchnocoele, 40. 



Spleen, Amphibia, 290 ; 

 birds, 442 ; Dipnoi, 

 252 ; Mammalia, 512 ; 

 Reptilia, 327. 



Spoonbill, 461 2 . 



Sprat, 214 2 . 



Spring-bok/591 1 . 



Spur-dog, 152 2 . 



Spy-slange, 370 2 . 



Squall, 150. 



Squaliobarbus, 220' . 



Squalodon, 562 2 . 

 j Squalorajidae, 158. 

 j Squalus, 152 l . 



Squamata, 334. 



Squatina, 125, 126, 153. 



Squirrel, common, flying 

 ground, spiny, 632 2 . 



Stagonolepis, 372, 381. 



Stapes, 267, 498. 



Star-gazer, 243 2 . 



Starling, American, 478 1 ; 

 rose-coloured, 47 7 2 . 



Staurotypus, 41 3 1 . 



Steatomys, 634 1 . 



Steatornis, 472 2 . 



Stegocephali, 313 2 . 



Stegodon, 572 1 . 



Stegonotus, 368 1 . 



