INDEX. 



715 



Scaphiopus, 48-t 

 Scaphirliyncliops platyrliynclms, 



427 

 Scaphopoda, 257, 273 

 Sceleporusundulatus, anatomy of, 



493, 504 

 ScUizaster fragilis, 124 

 Scbizopoda, 314 

 Scoles of tape worms, 156 



trematode worms, 150 

 Scolopendra gigantea, 358 



heros, 358 

 Scolopendrella, 358 

 Scomber sconibriis, 45^ 

 Scjpliopkori, 449 

 Seal, 614 

 Sea-anemone, 74 

 Sea-cow, 595 

 Sea-cucumber, anatomy of, 123 



apodous, 133 



pedate, 133, 135 

 Sea-fan corals, 86 

 Sea-horse, 443 

 Sea-lion, 014 

 Sea-pen, 80 

 Sea-squirts, 196 

 Sea-worms, 231 

 Selaclie maxima, 420 

 Selachians, 414 

 Semotilus rhotlieus, 453 

 Semnopitbecus, C21 

 Sense, organs of, 640 

 Serolis Gaudicliaudi, 306 

 Sertularia, 61 

 Sewellel, 585 



Sexual coloration in fishes, 444 

 Shad, 450, 451 



gizzard, 443 

 Shagreen, 415 

 Shark, basking, 420 



hammer-headed, 421 



mackerel, 419 



Port Jackson, 416 



thresher, 420 

 Sliarks, 414 

 Sheep, varieties of, 609 



Sheep, musk, 610 

 Sheep hydatid, 160 

 Shells, fossil, 270 

 Ship worm, 250, 254 

 Showt'l, 585 

 Shrew, 587 

 Shrike, 555 

 Shrimp, 312, 314 

 Sida, 299 

 SimiiB, 619 

 Siphoniata, 256 

 Siphonophora, 68, 72 

 Siphonops, 482 

 Siphydora echinoides, 47 

 Sipunculus, 221,224 

 Siredon, 479 

 Sirenia, 595, 629 

 Siren lacertina, 478 

 Sivatheriuni, 605 

 Skates, 421 



development of, 419 

 Skull, brachycephalic, 627 



dolicocephalic, 627 

 Slujr, 265 

 Smelt, 452 

 Smolt, 453 

 Smynthurua, 384 

 Snail, 365 

 Snake, hooded, 499 



striped, anatomy of, 498 

 Snakes, 496 



protective coloration of, 497 



viviparous, 497 

 Snipe, 545 

 Snow-flea, 364 

 Solaster endeca, 115 

 Solitaire, 547 



Somateria mollissima, .543 

 Somite, 286 

 Sorex platyrhinus, .587 

 Sounds produced by insects, 369 

 Sounds, fishes', 443 

 Spalax, 588 

 Sparrow, 555 

 Spatanprus, 124 

 Specialization, 6 



