INDEX. 



Each animal, the zoological position of which has not been given in the First 

 Lesson, has the title oj 'the group to which it belongs placed (between brackets) 

 after its name. 



Abdominal cavity, 433. 



muscles, 297, 298, 337. 



veins, 426. 



Abductor hallucis, or pollicis pedis, 305, 

 307, 308, 355, 358, 359. 



magnus muscle, 342. 



metatarsi quinti, 355, 359. 



minimi digiti muscle, 297, 337, 359. 



minimi digiti pedis muscle, 304, 

 306, 307. 



muscles, 282. 



poliicis muscle, 294, 297, 320, 337. 



pollicis pedis, see Abductor hallucis 

 Abomasum, 443, 444. 

 Absorption of teeth, 251. 

 Acanthopterygian fin, 278. 

 Acanthurus (a Teleostean Fish), swim- 

 bladder of, 466. 

 Accessorius muscle, 306. 

 Accipiter (a Carinate Bird), skull of, 



109, no. 



Acetabulum, 178, 180, 189, 195. 

 Acrodont teeth, 256. 

 Acrpmion, 146, 155, 156, 757, 170. 

 Actions of muscles, 361. 

 Adductor arcuum muscle, 310, 311. 



branchiarum muscle, 316. 



digiti tertii muscle, 334. 



digiti quarti muscle, 334. 



minimi digiti muscle, 296. 



muscles, 282. 



muscles of thigh, 301303, 344 

 34 6 . 350. 



pollicis muscle, 296, 297, 336. 

 Adjutant (a Carinate Bird), 200. 

 Aetobatis, 20. 



African Jumping Shrews, 16. 

 Agamas, 18. 



Agouti, 16. 



limb-bones of, 198. 



muscles of, 309, 317, 327, 340, 343, 



35i 353. 354. 356. 

 Ailurus, 16. 



teeth of, 267. 

 Air-sacs, 470, 471. 

 Ala, of spenoid, 76, 81, 90, 227. 

 Alimentary system, 433. 



tube, or canal, 4, 221. 223. 

 Alisphenoid, 98, 109, 130, 227. 



canal, no. 

 Alligato-s, 18. 



limb-bones of, 208. 



muscles of, 345, 349, 354. 

 Alveolar border, 76. 



plates, 256. 

 Alveoli, 77, 251, 257. 

 Amblystoma (a Urodele Batrachian), 



muscles of, 337. 

 American Apes, skull of, 132, 133. 



E^t, Great, 19. 



Monkeys, brain of, 378, 384. 

 Amia (a Ganoid Fish), swim-bladder 

 of, 466. 



ureters of, 482. 

 Amoeba, n. 



Amphicoelous vertebrae, 39. 

 Amphioxus, g, 12,21, 142, 215, 225. 



arteries of, 416. 



breathing organs of, 466. 



circulation of, 426. 



liver of, 460. 



Amphipnnis (a Teleostean Fish). 480. 

 Amphisbena, 10, 18. 



limb-bones of, 190. 

 Amphiuma (a Urodele Batrachian), 



lungs of, 464, 465. 



spine of, 53, 68. 

 Anabas a Teleostean Fish), gills of, 480. 



K K 2 



