48 



INDEX OF SPECIES. 



Diala 



iiiamillata, 33, P 412. 



marinorea, 99, I43' 



paupercula, 259, 

 Dione 



affliiis, 305. 



alternata, 363. 



aurantia, 246, 305, P 56 

 P63. 



aurantiaca, 2S2. 



biradiata, 232, 305, P VI. 



brevispina, 57. 



brevispinata, 57, 281, P 69. 



brevispinosa, 247, 305, 

 358, P 69. 



chione, 366, P VI., P 63, P 



65. 

 chionsea, 226, 232, 234, 



O 246, 282, 305, 352, 



366,P VI,P63, P64,P65, 



P70. 

 chionaea, var. O 364. 

 circinata, 58, 232, 247, 



305, O 3(>3, P 69. 

 concinua, 247, 305, P 69. 

 cousanguiuea, 305, 

 dioue, O 232, 364. 

 elegaus, P VI. 

 exspinata, 58. 

 lepida, 234. 

 lupiuaria, 57, 232, 246, 



265, 297, 305, 35S, 



364, P 67. 

 maculata, 57, 364, P 65. 

 multispiuosa, 57. 

 nobilis, 57. 

 pannosa, 58, 211. 

 piora, 58. 



• var. 210. 



puella, 21. 



rosea, 232, 234, 246, 



305, P 66. 

 semilamellosa, 57, 58. 

 squalida, 305, P VI., P 64. 

 tortuosa, 305. 

 uuicolor, 58, 305. J 



Dione 



Veneris, 57, P 67. 



vulnerata, O 246, O 305, P 68. 

 Diplodonta 



calculus, 106,0 308. 



circularis, 366. 



obliqua, 224, 248, 308, 

 P 103, P 534. 



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

 197, 232, 308, O 349, 

 351, 352, U 202, V 218. 



semiaspera, 30, 154, 197, 

 224, 229, 248, 297, 

 30S, 363, 366, P 102. 



var. 227, U 202. 



semiaspera, I'ar. discrepaas, 

 24S, P 103. 



serricata, 248, P 104. 



subquadrata, 106, 287, 30S, 

 Q230. 



trigonula, P 103. 



imdata, P 103. 

 Discina 



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

 266, 244, O 29S, 366, P 7. 



Evansii, 55, 102, O 298, 349. 



striata, 366. 



strigata, 54. 

 Discopora 



trispiuosa, P 3. 

 Discus 



Vancouverensis, 157. 

 Dispotaea 



Byronensis, 10. 



dentata, O 3, P 287. 



spinosa. 239, P 546. 



striata, Q 234. 

 Distortio 



anus, 171. 



coiistrictus, 182. 

 Ditrupa 



gadus, X 413. 

 Dolium 



crassilabre, 238, P 543. 



dentatum, 8, O 238, P 543. 



latilabre, 238. 



