INDEX. 



A. 



abbreviata, 92. 

 al)dita, 282. 

 abditum, 282. 

 abnipta, 282. 

 abruptum, 281. 

 acuminata, 78, 174, 



271. 

 acuminatum, 271. 

 acutum, 278. 

 Adamsi, 284. 

 Adansoni, 17.29,32. 

 adenensis, 92. 

 aenea, 174. 

 jequalis, 201. 

 aequata, 262. 

 aequilatera, 50. 

 a-ijuiiateralis, 255. 

 iequivoca, 89. 

 adinis, 7, 73, 102, 245. 

 Africaua, 17, 222. 

 agrestis, 112. 

 alata, 14. 

 alba, 169. 

 albida, 68, 84. 

 all)ina, 08. 

 albo-cincta, 79. 

 albo-radiata, 115. 

 albula. 209. 

 alluiluin, 269. 

 alta, 19, 122. 

 allernata, 77. 

 altile, 283. 

 altilis, 283. 



altior, 25. 

 Alvarezii, 155. 

 araabilis, 163. 

 Amathusia, 132. 

 ambigua, 47, 153,223. 

 Ameroda, 261. 

 Amisoda, 261. 

 amnica, 275. 

 amnicum, 264, 274, 



276. 

 amphidesmoides, 12. 

 amygdalina, 215. 

 analis, 183. 

 angulata,20 1,204,259. 

 angulifera, 79. 

 angulosa, 16. 

 anomala, 155, 257. 

 Anomalocardia, 115. 

 antiqua, 109. 

 anus, 23. 

 aphiodina, 147. 

 aphrodinoides, 148. 

 apicalis, 88. 

 appeiidiculata, 278. 

 arabica, 91. 

 araneosa, 169. 

 arctata, 253. 

 arctica, 200. 

 argentina, 50, 272. 

 argentinum, 272. 

 Artemis, 5. 

 Artemis, 86. 

 aspera, 25, 140. 

 asperrima, 139. 



aspersa, 164. 

 astartoides, 147. 

 atrata, 240. 

 aurantia, 56. 

 aurea, 173, 268. 

 aureum, 268. 

 australe, 276,285. 

 australis, 24, 87, 94, 

 142, 230, 285. 



B. 



Bahiense, 284. 

 Bahiensis, 284. 

 Ba/ma, 219, 234. 

 Belcheri, 75, 170. 

 bella, 132. 

 Bensalensis, 224, 



243. 

 Bensoni, 223. 

 Berrii, 125. 

 Beudanti, 175. 

 bicolor, 49. 

 bilunulata, 20. 

 biradiata, 58, 170. 

 Birraanicus, 44. 

 bis cocta, 27. 

 borealis, 260. 

 Brasiliana, 232. 

 brevis, 195. 

 brevispina, 76. 

 Brongniarti, 128. 

 Bruguieri, 22, 183. 

 buUata, 70. 

 Buschii, 243. 



