48 



INDEX OF SPECIES. 



Diala 



uiamillata, 33, P 412. 

 marinorea, 99, 143. 

 paupercula, 259. 

 Dione 



affluis, 305. 



alternata, 363. 



aurantia, 246, 305, P 



P6 3 . 



aurantiaca, 282. 

 biradiata, 232, O 305, P VI, 

 brevispina, 57. 

 brevispinata, 57, 281, P 69. 

 brevispinosa, 247, O 305, 



358, P 69. 

 cliione, 366, P VI., P 63, P 



65. 

 chionaea, 226, 232, 234, 



246, 282, 305, 352, 



366, P VI, P 63, P 64,P65, 



P 7 o. 



chionsea, var. 364. 

 circinata, 58, 232, 247, 



35, 363, P 69. 

 concinna, 247, 305, P 69. 

 consanguinea, 305. 

 dione, 232, 364. 

 elegans, P VI. 

 exspinata, 58. 

 lepida, 234. 

 lupinaria, 57, 232, 246, 



265, 297, 305, 358, 



364, P 67. 



maculata, 57, 364, P 65. 

 multispinosa, 57. 

 nobilis, 57. 

 pannosa, 58, 211. 

 prora, 58. 



var. 210. 



puella, 21. 



rosea, 232, 234, 246, 



305, P 66. 



semilamellosa, 57, 58. 

 squalida, 305, P VI., P 64. 

 tortuosa, 305. 

 unicolor, 58, 305. 



Dione 



Veneris, 57, P 67. 



vulnerata, 246, 305, P 68. 

 Diplodonta 



calculus, 106, 308. 



circularis, 366. 



obliqua, 224, 248, O 308, 

 P 103, P 534. 



orbella, 12, 22, 26, 113, 129,0 

 197, 232, 308, 349, 

 35 1 , 352, U 202, V 218. 



serniaspera, 30, 154, 197, 

 224, 229, 248, 297, 

 3 8 > 363, 366, P 102. 



var. 227, U 202. 



semiaspera, var. discrepans, 

 248, P 103. 



serricata, 248, P 104. 



subquadrata, 106, 287, 308, 

 Q230. 



trigonula, P 103. 



undata, P 103. 

 Discina 



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

 266, 244, O 298, O 366, P 7. 



Evansii, 55, 102, 298, O 349. 



striata, 366. 



strigata, 54. 

 Discopora 



trispinosa, P 3. 

 Discus 



Vancouvereusis, 157. 

 Dispotaea 



Byronensis, 10. 



dentata, 3, P 287. 



spinosa. 239, P 546. 



striata, Q 234. 

 Distortio 



anus, 171. 



constrictus, 182. 

 Ditrupa 



gad us, X 413. 

 Do Hum 



crassilabre, 238, P 543. 



den tat urn, 8, 238, P 543. 



latilabre, 238. 



