48 



INDEX OP SPECIES. 



Diala 



mamillata, 33, P 412. 

 marinorea, 99, I43- 

 paupercula, 259. 

 Dione 



affluis, 305; 



alternata, 363. 



aurantia, 246, O 305, P 56 



P63. 

 aurantiaca, 282. 

 bii-adiata, 232, 305, P VI. 

 brevispina, 57. 

 breviapinata, 57, 281, P 69. 

 brevispinosa, 247, 305, 



358, P 69. 

 oliioue, 366, P VI., P 63, P 



65. 

 chionsea, 226, 232, 234, 



246, 2S2, 305, 352, 



366,PVI,P63, P64,P65, 



P70. 

 chionsea, var. 364. 

 oircinata, 58, 232, 247, O 



305, 363, P 69. 

 conoinna, 247, 305, P 69. 

 oonsanguinea, 305. 

 dioue, 232, 364. 

 elegans, P VI. 

 exsphiata, 58. 

 lepida, 234. 

 lupinai'ia, 57, 232, 246, 



265, 297, 305, 358, 



364, P 67. 

 maculata, 57, 364, P 65. 

 multispinosa, 57. 

 Bobilis, 57. 

 paniiosa, 58, 211. 

 proi-a, 58. 



var. 210. 



puella, 21. 



ro3ea, 232, 234, 246, 



305, I' 65. 

 seniilaiiii-llosa, 57, 58. 

 sqiuiliila, 305, P VI., P 64. 

 tortuosa, 305. 

 unicolor, 58, 305. 



DionS 



Veneris, 57, P 67. 

 vulnerata, 246, O 305, P 68. 

 Diplodonta 



calculus, 106, 308. 



circularis, 366. 



obliqua, 224, 248, 308, 



P 103, P 534. 

 orbella, 12, 22, 26, 113, 129, 

 197, 232, 0' 308, 349, 

 351, 352, U 202, V 218. 

 semiaspera, 30, 154, 197, 

 224, 229, 248, 297, 

 308, 363, 366, P 102. 



var. 227, U, 202. 



semiaspera, var. disorepaus, 



248, P 103. 

 serrioata, 248, P 104. 

 subquadrata, 106, 287, 30S, 



Q 230. 

 trigonula, P 103. 

 undata, P 103. 

 Discina 



Cumingii, 37, 105, 155, 194, 205, 

 266, 244, 298, 366, P 7. 

 Evansii, 55, 102, O 298, 349. 

 striata, 366. 

 strigata, 54. 

 Discopora 



trispinosa, P 3. 

 Discus 



• Vancouverensis, 157. 

 Dispotaea 



Byronensis, 10. 

 dentata, 3, P 287. 

 spiiiosa, 239, P 546. 

 striata, Q 234. 

 Distortio 



anus, 171. 

 coiistrictus, 182. 

 Ditrupa 



gadus, X 413. 

 Dolium 



crassilabre, 238, P 543. 

 deiitatiim, 8, 238, P 543. 

 latilabre, 238. 



