INDEX. 
ACANTHARCHUS POMOTIS, 443 
Acanthocephali, 128, 133 
Acanthoglossus Bruijnii, 573 
Acarina, 339, 366 
Achorutes nivicola, 344 
Acineta, 34 
Acipenser sturio, 427 
development of, 427 
Acrania, 401, 405 
Actheres Carpenteri, 278 
Actinia, 74, 78 
Actinophrys sol, 27 
Actinospherium, 26 
Actinozoa, 74, 91 
Adaptation of animals to their 
surroundings, 10 
Adder, puff, 499 
AXgineta, 62 
Holis pilata, 245 
ZEpyornis, 538 
Agalmopsis, 70 
Agamogenesis, 54 
Agelacrinus, 190 
Ai, 579 
Aix sponsa, 543 
Albatross, 542 
Albertia, 137 
Alca impennis, 541 
Alcyonaria, 85, 91 
Alectorides, 544 
Aletia, 359 
Alewife, 450, 451 
Alligator Mississippiensis, 514 
Alopecias vulpes, 420 
Alosa sapidissima, 450 
Alpheus, 305 
Alytes obstetricans, 484 
Amarecium, 390 
Ambergris, 593 
Amblyopsis speleus, 433 
Amblyrhynchus, 504 
Amblystoma mavortium, 479 
Amia calva, 488 7 30 
, Amiurus lynx, 443 
, Ammoceetes, 410 
‘ Ammonites, 280 
‘ Ameeba, 8, 17, 22 
' Ampelis cedrorum, 555 
' Amphibia, 464 
Amphioxus, structure of, 406 
development of, 407 
Amphipoda, 285 
Amphisbena, 502, 503 
Amphitrite cirrata, 173 
ornata, 
Ampulle of Echinoderms, 179 
| Anabas scandens, 457 
| Anadromous fishes, 451 
Analogy, 12 
| Anas boschas, 543 
obscura, 548 
. Anchitherium, 602 
| Ancistrodon contortrix, 500 
piscivorus, 500 
Andrena, 864 
| Andrias Scheuchzeri, 479 
