INDEX AND GLOSSARY. 



ABO 



A BOMASUS, the fourth stomach 



* in ruminants, 96 

 Acanthopteri, spiny-finned fishes, 30 

 Accessory eyes in Scopeline fishes, 



29 



Acrania, headless vertebrates, 5 

 sEpyornis, a gigantic extinct bird ol 



Madagascar, 62 

 African mud-fishes, 14-33 

 Aftershaft, 53 

 Air in bones of birds, 57 

 Albatross, 72 

 Allantois, a membrane surrounding 



the young of reptiles, birds, and 



mammals before birth. 

 Alligators, 52 

 Alula, the bastard wing, or feathers 



borne on the thumb in birds, 54 

 Alveoli, the sockets of the teeth in 



vertebrate animals, 

 A ntblyopsis, or blind-fish, 29 

 American monkeys, 118 

 Amphibia, 34 

 blood of, 36 

 Amphicoelous vertebras, bones of the 



vertebral column which are hollow 



on both surfaces, 15 

 Amphioxus lanceolatus, 4 

 A mphiuma, one of the amphibia, 39 

 Anacanthini, soft-finned fishes witn 



no swimming bladder, 29 

 Anal fin, 14 



Anatomy of amphioxus, 4 

 Angiiisfragilis, 43 

 Animals, vertebrate, characters of, i 

 Anteaters, 80-85 

 Antelopes 100 

 Anthropoid apes, 120 



BAB 



Anura, tailless amphibians, such as 



frogs, 39 

 Aorta, the large bloodvessel which 



conveys the pure blood from the 



heart, 21 

 Aortic arches, 9 ; in reptiles, 40 ; in 



birds, 60 ; in mammalia, 78 

 Aplacentalia, such mammals as have 



no placentae. 

 Apteryx, wingless bird of New 



Zealand, 63 

 Arch, neural, 3 

 Arch, hyoid, 8 

 Arches, aortic, 9 



branchial or gill, 18 



visceral, 7 

 Armadillos, 86 



scales of, 74 

 Arterial cone in fishes, 2 

 Arteries, branchial, 21 

 Articulation, a joint between two 



bones. 



Artiodactyla, even-toed hoofed ani- 

 mals, 93 



Asymmetry of flat-fishes, 31 



Atlas, the first bone of the vertebral 

 column, which supports the head. 



Atrium in amphioxus, 4 



Auricle of heart, 9 



Australioid races of man, 122 



Aves, birds. 52 



Axolotl, a Mexican amphibian, 40 



Aye Aye, 113 



DABOONS, 119 



LJ Babyroussa, a kind of pig from 

 the Malay Islands, 94 



