INDEX 



709 



Skeleton of Craniata See Skull, Verte- 

 bral column, Ribs, Sternum, Pec- 

 toral arch, Pelvic arch, Limb- 

 skeleton 



Skin, Craniata, 67 

 Skincs, 324, 332, 354, 358 

 SkuU, of Craniata, 73, 74, 75, 76, 77, 

 78 : Petromyzon, 121, 122, 123 : 

 Myxinoids, 136 : Dogfish, 143, 144 : 

 Elasmobranchii, 168, 169 : Holo- 

 cephali, 184, 185, 186, 187 : Trout, 

 196, 197, 198, 199, 200, 201 : 

 Teleostomi, 223 : Ceratodus, 241, 

 242 : Frog, 260, 261, 262 : Amphibia, 

 290, 291, 292, 293 : Lizard, 307, 308, 

 309 : Reptilia, 337-341 : Pigeon, 

 376, 377, 378 : Archseopteryx, 407 : 

 Birds, 414r-416 : Rabbit, -436-441 : 

 Mammalia, 496, 497, 498, 499 : 

 Prototheria, 502, 503, 504: Meta- 

 theria, 506-508 : Edentata, 510, 

 511, 512 : Cetacea, 515, 516, 517, 

 518 : Sirenia, 518, 519 : Ungulata, 

 520-525 : Camivora, 528, 529, 530 : 

 Rodentia, 532 : Insectivora, 532, 

 533: Chiroptera, 534, 535: Pri- 

 mates, 536-538 



Slime -Eels, 134 



Sloane, H., 655 



Sloths, 465, 474, 483, 495, 500, 501, 

 509, 511, 512, 513, 514, 515, 547, 

 556, 579 



Smelt, 214, 232, 620 



Smith, William, 658 



Snakes, 324 See Ophidia : venomous 

 356 



Soft palate, 446*, 553 



Soft tortoises, 325, 332 



Solander, 655 



Sole, 190, 214, 235 



Solenocytes, 51 



Solenodon, 613 



Solitaire, 404, 413, 417, 622 



Somatic motor fibres, 113* 



Somatic nerves, 96* 



Somatic sensory fibres, 112* 



Somites, 56, 57* 



Soricidce, 471, 493 



Souleyet, 662 



South American Ostrich See Rhea 



Spallanzani, 653 



Sparassodonts, 583, 621 



Sparrmann, 655 



Spelerpes, 290 



Spencer, Herbert, 662 



Sperm-sac, of Elasmobranchii, 159, 

 175 



Sperm Whales, 466, 501, 550 



Spermatic artery, 90 



Spermatic vein, 91 



Spermatists, 650 



Spermatophores, of Holocephali, 189, 

 190 : Amphibia, 300 



Sphargis, 336, 357, 358 



Sphenethmoid, 261* 



Sphenodon punctatum, 325, 329, 330, 

 333, 334, 335, 336, 337, 338, 339, 

 343, 345, 350, 351, 357, 358 



Sphenoidal fissure, 438* 



Spheno- maxillary fissure, 537* 



Sphenotic, 198, 199 



Sphyrna, 165 



Spider Monkeys, 473 



Spigelian lobe, 556, 557* 



Spinal accessory nerve, 321 



Spinal column See Vertebral column 



Spinal cord, of Urochorda, 34 : Amphi- 

 oxus, 52 : Craniata, 95, 96* 



Spinal nerves, 53 : of Craniata, 96* 



Spines, Spinous fin-rays of Teleostomi, 

 215, 219 



Spiny Ant-eater, 464 See Echidna 



Spiracle, of Dogfish, 141* : Teleostomi, 

 218 



Spiracular cartilage, 168*, 169 



Spiracular gill, 150*, 173 



Spiral valve, of Petromyzon, 125, 126*, 

 130 : Dogfish, 148, 149 : Elasmo- 

 branchs, 172 : Teleostomi, 212 : 

 Ceratodus, 243 



Splanchnic nerves, 96* 



Splanchnotome, 59* 



Spleen, 85* 



Splenial See Skull, 310* 



Splenial teeth, 243 



Splenium, 454*, 561* 



Spontaneous generation See Abio- 



genesis 



Spoonbills, 403, 408 

 Spurs, 409 

 Squalida, 164* 

 Squalodon, 588 

 Squalodontidce, 586 

 Sqtialoraja, 190 

 Squamata, 324* 

 Squamosal, 77, 80* See Skull 

 Squamous suture, 436* 

 Squirrel Monkeys, 473 

 Squirrels, 470, 492, 532 

 Stapes, of Frog, 261, 263* : Urodela, 



291 : Rabbit, 441 

 Star-gazers, 218, 226 

 Starlings, 404, 430 

 Station, 605* 

 Statocyst see Otocyst 

 Steatornis, 613 

 Steganopodes, 403* 

 Stegocephala, 256, 285*, 288, 289, 293, 



295, 299, 302 

 Stein, 661 



Steller's Sea Cow, 586 

 Stereornithes, 401*, 430 



