TO 



INDEX OP SPECIES. 



Margarita 



obscura, ^o. 



var. obsoleta, 139. 



pupilla, 25, 40, 47, 92, 98, 139. 



purpurata, 28, 240. 



pusilla, 89. 



(?iar.) salinoDea, 98, 139. 



Sohantarica, 73- 



sordida, 216. 



striata, 47, 71, 176, O 216, 



223, 321. 

 var. subelevata, 139. 

 sulcata, 216, 223, 321. 

 var. teiinisculpta, 89, 139. 

 umbilicalis, 176. 

 undulata, 47, 98, 139. 

 Vahlii, 89, 139, 169. 

 Margaritana 



tnargaritifera, 85, 116, 120, 164. 

 Margaritipliora 

 albiua!, P 149. 

 bai'bata, 199. 

 fimbriata, 27, 50, 107, 153, 199, 



161, 249, 277, 2S2, 



311, P 550. 

 margaritifera, P 149. 

 Mazatlanica, 199, 249, 296, 



O311, Pi49,P 196. 

 radiata, P 149. 

 Marginella 



coerulea, 363 : [should be- — ] 

 ccerulesoens, 15, 24, 35, 177, 



189, 339, 365. 

 curta, 296, 339. 

 cyprffiola, 45, 267, 285, 



339- 

 glans, 15, 177. 

 graiiiitu, 267 

 imbricata, 226, 285, O 297, 



339- 

 Jewettii, 23, 147, 2S7, 22S, 



339, 349, U 207. 

 Lavalleana, P 461. 

 margaritnla, 261, O 339, 



364, P 462. 

 misiima, 364, P 461. 



Marginella" 



minor, no, 147, 177, 261, 



O 267, 339, 364, P 461. 

 ovuliformis, 261, 364, P 462. 

 polita, 23, 24, 261, 339, 



P462. 

 prunum, 7, 15, I77. 189, 

 206, 282, 339, 363, 

 O365. 

 regularis, 23, 147, 287. 

 sapotilla, 15, 35, 177, 189, 

 206, 231, 267, 282, 

 339, 363. 

 subtrigona, 23, 147, 287. 

 Marinula 



RecluziaHa, 275. 

 Marmorostoma 

 plaiiospira, 35. 

 undulata, 10. 

 Martesia 



intercatata, 114, 123, 151,0244, 

 299, P 13. 

 Megalomastoma 



simulacrum, 45. 

 Meioceras. Sue Mioceras. 

 Melampus 



acutus, 315. 

 Adamsianus, S 161. 

 bidentatus, P 178. 

 Bridgesii, 284, 315, S i6r. 

 concinnus, 315. 

 fasciatus, 44. 

 infreqnens, 315. 

 olivaceus, 107, 133, 151, 159, 

 233, 251, 284, 315, 

 351, P 178. 



Panamensis, 315. 

 stagnalis, 315. 

 Tabogensis,0 315. 

 trilineatns, 315. 

 Melania 



bnlbosa, 163, 209, 325. 

 Buscliiana, 51. 

 exigua, 163, 283. 

 fnsca, 163. 

 Gouldii, 325. 



