328 



INDEX. 



Supertenipoval bones (Lnt. super and 

 tcmpora above the temples), 49 



Suprascapular of the crocodile 

 {Lat. supra above, and scapula 

 the shoulder-blade), 115 



Swan, skeleton of the, 137, 138; 

 calcaneal prominence of the, 146 



Sword-fishes, premaxillaries of the, 

 53 



Symbols of teeth, 313 



Symphysis (Gr. sun and physis 

 growing together), 131 



Tadpole, metamorphoses of the, G8, 



69 

 Tarsal bones (Gr. iarsos the palm of 



the hand or foot), of diiferent 



mammalia, 185, 187 

 Tarso-metatarse (Gr. tarsos the 



palm of the hand, and meta over), 



146 ; modifications of the, 146 

 Taste, organ of, 31 

 Tectrices (Lat. tectum a covering), 



the wing coverts of birds, 144 



TEETH, on the principal forms and 

 structures of the, 229 et seq. ; in- 

 timately related to the food and 

 habits of the animal, ib. ; vascu- 

 lar canals of the, 231 ; dental 

 tissues and pulp-cavities, 231 ; 

 chemical and structural composi- 

 tion of, 234 ; cement and enamel 

 of the, ib. ; complex and com- 

 pound teeth, 235; dental system 

 of fishes, 240 et seq. ; shedding 

 and renewal of, in fishes, 250 ; of 

 reptiles, 250, 251 et seq. ; of croco- 

 diles and poisonous snakes, 257 ; 

 of mammalia, 258; form, fixation, 

 and structure of, in the mamma- 

 lia, 259-261 et seq.; of the carni- 

 vora, 264 ; of the morse and the 

 porcupine, 266, 267 ; of the 

 horse, 271 ; of the elephant, 272- 

 290 ; their succession, develop- 

 ment, &c., 281, 284; of the me- 

 gatherium, 292; of the anoplo- 

 therium, 297 : of the ruminants. 



298; of the seal tribe, 299; of 

 the quadrumana, 301 ; of the 

 orang and chimpanzee, 305 ; of 

 monkeys and lemurs, 306, 307 ; 

 homologies of, 308, 312 ; of the 

 hog, 310; notation and symbols 

 of, 313 



Tentorium (Lat. a tent), 16 



Tibia (Lat. the shin-bone) of the 

 crocodile, 120; of the sloth, 192 



Toes, of birds, 146 



Tooth, human, magnified section of 

 the, 232 



Tooth-pulp, the primary basis of 

 the tooth, 231 



Tortoise, osteology of the, 122 et 

 seq. ; skeleton of the, 123 ; cara- 

 pace and plastron of the, 124, 

 126; vertebrte of the, 129; skull 

 of the, 131; limbs of the, 133 



Trapezium (Gr. trapezion a four- 

 sided geometrical figure), one of 

 the carpal bones, 216 



Trapezoides (Gr. trapezion \ut ante'] 

 and eidos resemblance), one of 

 the carpal bones, 216 



Trochanter (Gr. trochao to turn), of 

 the crocodile, 120 



Trochlea, tibial (Gr. trochos a 

 wheel), 145 



Troglodytes (Gr. trogle a cavern, 

 and duno to dwell in), facial an- 

 gle of the genus, 227 



Turbinal bones, or Turbinals (Lat. 

 turbo a top), 48; of the skull, 80 



Turtle, osteology of the, 122; cara- 

 pace of the, 124 ; plastron of the, 

 126 



Tusks of the elephant and the mam- 

 moth, 274, 278 



Tympanic bone (Gr. iympanon a 

 drum), 46, 53 ; of the boa-con- 

 strictor, 82 



U 



Ulna of the cod-fish (Lat. ulna the 



elbow), 41, 42 

 Unciforme (Lat. uncus a hook, and 



forma shape), one of the carpal 



bones, 216 



