INDEX. 



ACANTHAECHTrS POMOTIS, 443 



Acanthocephali, 165, 175 

 Acanthoglossus Bruijnii, 578 

 Acarina, 339, 366 

 Acliorutes uivicola, 344 

 Acineta, 34 

 Acipenser stuiio, 437 



development of, 437 

 Acrania, 401, 405 

 Actheres Caipenteri, 378 

 Actinia, 74, 78 

 Actmophrys sol, 37 

 Actlnospliserium, 36 

 Actinozoa, 74, 91 

 Adaptation of animals to their 



surroundings, 10 

 Adder, puff, 499 

 ^gineta, 63 

 jEolis pilata, 345 

 ^pyornis, 538 

 Agalniopsis, 70 

 Agamogenesis, 54 

 Agelacrinus, 108 

 Ai, 579 



Aix sponsa, 543 

 Albatross, 543 

 Albertia, 179 

 Alca irapennis, 541 

 Alcyonaria, 85, 91 

 Alectorides, 544 

 Aletia, 359 

 Alewife, 450, 451 

 Alligator Mississippiensis, 514 



Alopecias vulpes, 480 

 Alosa sapidissima, 450 

 Alpheus, 805 

 Alytes obstetricans, 484 

 Amaroecium, 300 

 Ambergris, 593 

 Amblyopsis spelseus, 433 

 Amblyrhynchus, 504 

 Amblystoma mavortiura, 479 

 Amia calva, 433 

 Amiurus lynx, 443 

 Ammoccetes, 410 

 Ammonites, 380 

 Amoeba, 3, 17, 33 

 Ampelis cedrorum, 555 

 Amphibia, 464 

 Amphioxus, structure of, 406 



development of, 407 

 Amphipoda, 385 

 Amphisbaena, 503, 503 

 Ampliitrite cirrata, 216 



ornata, 219 

 Ampullae of Ecliinoderms, 97 

 Anabas scandens, 457 

 Anadromous fishes, 451 

 Analogy, 13 

 Anas boschas, 543 



obscura, 548 

 Anchitherium, 603 

 Ancistrodon contortrix, 500 



piscivorus, 500 

 Andrena, 364 

 Andrias Scheuchzeri, 479 



