INDEX. 



ACANTHARCHUS POMOTIS, 443 



Acanthooephali, 165, 175 

 Acantboglossus Bruijnii, 573 

 Acai-ina, 339, 366 

 Achorutes uivicola, 344 

 Acineta, 34 

 Acipenser sturio, 427 



development of, 427 

 Acrania, 401, 405 

 Adheres Carpenter!, 278 

 Actinia, 74, 78 

 Actinophrys sol, 27 

 Actinosphserium, 26 

 Actinozoa, 74, 91 

 Adaptation of animals to their 



surroundings, 10 

 Adder, puff, 499 

 ^Egineta, 62 

 ^Eolis pilata, 245 

 ^Epyornis, 538 

 Agalmopsis, 70 

 Agamogenesis, 54 

 Agelacriuus, 108 

 p Ai, 579 

 Aix sponsa, 543 

 Albatross, 542 

 Albertia, 179 

 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 

 Amaracium, 200 

 Ambergris, 593 

 Amblyopsis spelaeus, 433 

 Amblyrhyncbus, 504 

 Amblystoma mavortium, 479 

 Amia calva, 433 

 Amiurus lynx, 443 

 Ammocoetes, 410 

 Ammonites, 280 

 Amoeba, 3, 17, 22 

 Ampelis cedrorum, 555 

 Amphibia, 464 

 Amphioxus, structure of, 406 



development of, 407 

 Amphipoda, 285 

 Amphisbcena, 502, 503 

 Amphitrite cirrata, 216 



ornata, 219 



Ampullae of Echinoderms, 97 

 Anabas scandens, 457 

 Anadromous fishes, 451 

 Analogy, 12 

 Anas boschas, 543 



obscura, 543 

 Anchitherium, 602 

 Ancistrodou contortrix, 500 



piscivorus, 500 

 Andrena, 364 

 Andrias Scheuchzeri, 479 



