INDEX OF SPECIES. 



n 



Anachis 



Guatemalensis, 35, iSi. 



lentiginosa, 344. 



lyrata, 25, 53, 180, 344. 



maculosa, 263. 



tasesta, 181, 270,0 344, P 509. 



nigricans, 25, 181, O 344, O 361, 



P509. 

 nigiofusca, 263, 343, P 509. 

 nucleolus, 343. 

 pallida, 112, 343. 

 parva, 344. 

 fpenicillata, 23, 150, 2S8. 

 pygmsea, 25, 35, 112, iSi, 263, 



0343,0363, P 510, P 511. 

 pygmsea, var. 284, P 510. 

 pulchrior, 112. 

 rufotincta, 34, 263, 343, 



P5". 



rugosa, 25, 59, 181,0 283, 344. 

 rugulosa, 361, 344. 

 scalariua, 35, 180, 263, O 343, 



P505. 



serrata, 112, 260, 343, 263, 

 P 509. 



subturrita, 99, 150. 



terpsichore, 364. 



te^selata, 270, 344. 



tincta, 105, 221. 



taeniata, 112, 260, 343. 



varia, 25, 181, 344, P 507. 

 Anatina 



alta, 39, 204, 280. 



argentaria, 231. 

 Anculosus 



Nuttalli, 162. 

 Ancylus 



caurinus, 85, 161. 



crassus, 161. 



fragilis, 161. 



Kootaniensis, 90, l6l, 



Newberryi, 161. 



Nuttalli, 85. 



patelloides, 120, 161. 

 Anellum 



aunnlatum, X 442. 



2 



Anellum 



clathratum, 256, 324, X 442. 

 elegantissimum, X 443. 

 ?elegautissimum, var. Searles- 



Woodii, X 443. 

 elongatum, 256, 324, X 442. 

 ^—^ var. semiljeve, X 442. 

 firmatum, 256, 324, X 442. 

 Floridanum, X 442. 

 gracile, X 443. 

 gurgulio, X 442. 

 ?parvum, 324. 

 pulchellum, X 442. 

 quadratum, 256, 324, X 442. 



? var. compactum, X 442. 



regulare, X 443. 

 subimpressum, 256, 324, 



X442. 

 trachea, X 442. 



? rrtr. obsoletum, X 442. 



tumidutn, X 442. 

 uudatum, 256, 324, X 443. 

 Angulus 



amplectans, 155, 272. 

 decumbeus, 271. 

 Gouldil, 125, 151, 300. 

 modestus, 88, 125, 167. 

 obtusus, 125, 235. 

 tener, 88, 125, 167. 

 variegatus, 97, 113, 125, 235. 

 Anodon (=Anodonta) 



augulata, 17, 18, 86, 92, 120. 



164, O 206, 210, O 212, 



297, 309. 

 anatina, 222. 

 anserina, P ii7- 

 atrovirens, 295, 309. ° 

 Californiensis, 77. 

 cellensis, O 222. 

 ciconia, 170, 232, 227, 



O 309, 248, P 117, U 202. 

 cognata, 17, 91, 210, 212, 



O310. 

 cornea, 295, 309. 

 feminalis, 17, 86, 120, 210, 



212, 213, 309. 



