INDEX OP SPECIES. 



Mactra 



maxima, 192. 



'mendica, 227, P 549, U 200. 



modesta, 152. 



nasuta, 211, 232,0 304, 

 0352. 



Nuttallii, 194. 



oblonga, 246, P 51. 



ovalina, 246, P 51. 



ovalis, 219, 221, 223, 

 304. 



pallida, 175, 304. 



planulata, 25, 196, 304, 

 349, V 214. 



ponderosa, 221. 



similis, 178, 192, 221. 



stultorum, P 531. 



subglobosa, 1/5. 



undulata, U 200. 



velata, 204, 280, 295, 304. 

 Mactrella 



alata, 154. 



exoleta, 29, 126, 204. 



carinata, 154. 



lacinata, 284, S 161. 

 Maera 



Gouldii, 301. 



salmonea, 113, 125, 235. 

 Malea 



crassilabris, 171,0 178, 0" 238, 

 269. 



latilabris, 171, 238, 269, 

 O 292, 337. 



riugens, 24, 34, 80, no, 152, 

 153, 166, 179, 171, O 238, 

 O 282,0 288, 0337. 



riugens, var. 238. 

 Mamma 



uberina, P 452. 

 Mangelia 



acuticostata, 36, 184, O 284, 

 0332, P40i, S 162. 



acuticostata, var. subangulata, 

 O 259, P 400. 



albolaqueata, 273. 



angulata, 23, 89, 144, 284. 



Mangelia 



attenuata, 144. 



cerea, 24, 294. 



concinna, 332. 



crebricostata, 114, 144, 242. 



exigua, 184. 



gemmulosa, 184. 



hamata, 24, 293, 294. 



interfossa, 114, 144, 242. 



levidensis, 89, 144. 



neglecta, 36, 184, 272, 332, 



P 401, S 163. 

 plumbea, 332. 

 pulchella, 24. 

 rigida, S 163. 

 var. fuscoligata, 284, 



S 163, S 164. 

 septangularis, 144 

 striosa, 284,8 163. 

 subdiaphana, 24, 104, 154, 218. 

 sulcata, 34, 259. 

 sulcosa, 185, 272, 332. 

 tabulata, 114, 144, 242. 

 variegata, 23, 144, 284. 

 (?variegata, var.) nitens, 144, 



284. 

 Margarita 



acuminata, 47. 



acuticostata, 98, 139. 



albula, 73. 



arctica, 19, 73, 322, O 216, 



O 220, 223, 321. 

 argeutata, 71. 

 calostorna, 18, 40, 139, 286, 



O 321. 



cidaris, 113, 139, 238. 

 var. conica, 139. 

 costellata, 18, 40, 47, 92. 

 Groenlandica, 216. 

 helicina, 71, 113, 139, 169, 



216. 



Hillii, 28, 240. 

 iantbina, 73. 

 inflata, 89, 139. 

 lirulata, 82, 139. 

 mustelina, 73. 



