GENERAL INDEX. 



909 



SIR 

 Sirenia— -skeleton— continued. 



rostral, ii. 433 

 maxillary, ii. 434 

 mandible, ii. 434 

 C. bones of the limbs, ii. 435 

 scapula, ii. 435 

 humerus, ii. 436 

 radius, ii. 436 

 ulna, ii. 436 

 carpals, ii. 436 

 Sitta, characters of, ii. 10 

 Sivatherium, horns of, iii. 625 



skull, ii. 473 

 Skate, blood-discs of, i. 4 

 Skeleton, archetype, i. 29 

 Sloth, alimentary canal of, iii. 450 



three-toed, bones of, ii. 399, 405 

 Smaris, air-bladder of, i. 491 

 Solenodon, alimentary canal of, iii. 427, 428 



organ of hearing, iii. 229 



teeth, iii. 304, 305 

 Soleotalpa, characters of, i. xxxiii 

 Sorcidae, characters of, ii. 277, 296 



alimentary canal, iii. 427 



musky glands, iii. 634 



teeth, iii. 305, 313 

 Sorex araneus, organ of hearing of. iii. 229 

 Spalacotheriura, teeth of, iii. 302, 303, 790 

 Spalax typhlus, mouth of, iii. 386 



organ of sight, iii. 246 



skull, iii. 376 

 Sparidee, characters of, i. 11 



alimentary canal of, i. 421 

 Sparus (Epibulus) insidiator, locomotion of, 

 i. 250 



skull, i. 119, 122 

 Spatularia. See Planirostra. 

 Spermophilus, mouth of, iii. 386 

 Sphagebranchus, gills of, i. 478 

 Sphargis, ovi position of, i. 618 



teguments, i. 557, 559-561 



vertebral column, i. 61, 62 

 Species, definition of, iii. 792 



extinction of, i. xxxiv ; iii. 797 



origin of, i. xxxiii; iii. 793 



succession of, iii. 789 

 Spheniscus, eggs of, ii. 256 

 Sphenosaurus, vertebral column of, i. 53 

 Sphyraena, alimentary canal of, i. 426 



air-bladder, i. 491 



teeth, i. 372, 375, 377, 378, 382 

 Sphyraenidae, characters of, i. 11 

 Spider-monkey, bones of, ii. 516, et seq. 

 Spinachorhinus, vertebral column of, i. 36 

 Spinacidse, characters of, i. 13 



alimentary canal of, i. 423 

 Spinax, alimentary canal of, i. 413, 423 



development, i. 610 



male organs of generation, i. 570 



semination, i. 590 

 Spinax acanthias, alimentary canal of, i. 415 



female organs of generation, i. 573 



pectoral limb, i. 168 



STR 

 Spermaceti, where lodged in the skull, ii. 



421 

 Sperm-cells of Fishes, i. 589 

 Spurs of Birds, ii. 74 

 Squalodon. See Zeuglodon 

 Squamipinnes, characters of, i. 1 1 

 Squatina, heart of, i. 474 



skull, i. 76-78, 81, 82 



vertebral column, i. 33, 36 

 Squatinidse, characters of, i. 15 

 Squirrel, alimentary canal of, iii. 421 



caecum, iii. 424 

 Squirrel, climbing, bones of, ii. 383 

 Squirrel, flying, bones of, ii. 384 

 Stellio, alimentary canal of, i. 445 



larynx, i. 529 

 Stenops gracilis, larynx of, iii. 597 



organs of generation, male, iii. 672 



osseous system, ii. 512, 542 



teeth, iii. 314 

 Stenops javanicus, caecum of, iii. 43 1 

 Stenops tardigradus (Loris, syn.), arteries 

 of, iii. 545 



caecum, iii. 431 



organs of generation, female, iii. 701, 

 702 



salivary glands, iii. 405 



tongue, iii. 195 

 Stenorhynchus leptonyx, vertebral column 



of, 495 

 Stenorhynchus serridens, teeth of, iii. 336, 

 337, 369 



vertebral column, ii. 489, 495 

 Sterna, characters of, ii. 9 



scapular arch and limbs, ii. 70 

 Sterrink, bones of, ii. 495 

 Stoat, bones of, ii. 501 

 Strepsirhina. See Lemuridae 

 Streptospondylus, characters of, i. 17 



development of vertebrae, i. 34 



vertebral column, i. 69 

 Strigidae, air-cells of, ii. 214 



alimentary canal, ii. 171 



kidneys, ii. 227 



organ of hearing, ii. 134 



organ of sight, ii. 139-141, 143 



osseous system, ii. 27, 49 

 Strigops, osseous system of, ii. 28 



dorsal vertebrae and sternum, ii. 28 

 skull, ii. 58 

 Strix praticola, osseous system of, ii. 28 

 Stromateus, characters of. i. xxxii 

 Stromateus fiatola, alimentary canal of, i. 41 5 



changes with growth, i. 612 

 Struthio, characters of, ii. 6, 12, 13 



adrenals, ii. 229 



air-cells, ii. 214, 215 



air-passages, ii. 219 



alimentary canal, ii. 158, 161, 167, 

 169, 170, 171, 173 



blood, ii. 1 84 



generative system, ii. 242, 245, 251, 

 256, 257 



