INDEX. 



715 



Scaphiopus, 484 

 Scaphirhynchops platyrhynchus, 



427 



Scaphopoda, 257, 272 

 Sceleporus undulatus, anatomy of, 



493, 504 



Schizaster fragilis, 124 

 Schizopoda, 314 

 Scolex of tape worms, 156 



trematode worms, 150 

 Scolopendra gigantea, 358 



heroa, 358 

 Scolopendrella, 358 

 Scomber scombrus, 406 

 Scyphophori, 449 

 Seal, 614 

 Sea-anemone, 74 

 Sea-cow, 595 

 Sea-cucumber, anatomy of, 128 



apodous, 133 



pedate, 133, 135 

 Sea-fan corals, 86 

 Sea-horse, 443 

 Sea-lion, 614 

 Sea-pen, 86 

 Sea-squirts, 196 

 Sea-worms, 231 

 Selache maxima, 420 

 Selachians, 414 

 Semotilus rhotheus, 453 

 Semnopithecus, 621 

 Sense, organs of, 640 

 Serolis Gaudichaudi, 306 

 Sertularia, 61 

 Sewellel, 585 



Sexual coloration in fishes, 444 

 Shad, 450, 451 



gizzard, 443 

 Shagreen, 415 

 Shark, basking, 420 



liammer-headed, 421 



mackerel, 419 



Port Jackson, 416 



thresher, 420 

 Sharks, 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 



Simiee, 619 



Siphoniata, 256 



Siphonophora, 68, 73 



Siphonops, 482 



Siphydora echinoides, 47 



Sipunculus, 221, 224 



Siredon, 479 



Sirenia, 595, 029 

 Siren lacertiua, 478 

 Sivatherium, 605 

 Skates, 421 



development of, 419 

 Skull, brachycephalic, 627 



dolicocephalic, 627 

 SI nor, 265 

 Smelt, 452 

 Smolt, 452 

 Smynthurus, 364 

 Snail, 265 

 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 

 Soun Is produced by insects, 369 

 Sounds, fishes', 442 

 Spalax, 586 

 Sparrow, 555 

 Spatangus, 124 

 Specialization, 6 



