268 



Page. 



Limnea emarginata, .... 73 



— expansa, 75 



— fragilis, 68 



— ferruginea, 75 



— gracilis, 70 



— humilis, 71 



— jugularis, 74 



— linsleyi, 72 



— megasoma, 70 



— obrussa, 75 



— pallida, 69 



— reflexa, 71 



— rugosa, 75 



— solida, 75 



— umbrosa, 68 



— virens, 75 



Littorina irrorata, 106 



— rreritoides, ..... 108 



— palliata, 106 



— rudis, 104 



— tenebrosa, 105 



Loligo bartramii, 4 



— bartlingii, 4 



— brevipinna, 4 



— illecebrosa, 4 



— pavo, 4 



— pealii, 4 



— punctata, 3 



Lucina contracta, 214 



— divaricata, 214 



— flexuosa, 214 



— radula, 214 



Lutraria caniculata, 232 



— lineata, 232 



Machzera costata, 244 



— nitida, 245 



Mactra fragilis, 230 



— lateralis, 230 



— nucleus, 23 1 



— ovalis, 230 



— similis, 230 



— solidissima, 229 



INDEX. 



Paqi. 



Macthidje, 229 



Margarita arctica, 108 



— argentata, . . .' 109 



— cinerea, 108 



— multilineata, . . 109 



— obscura, 109 



— ornata, 107 



— undulata, .... 107 



Marginella carnea, 152 



Melania acutocarinata, . . 99 



— altilis, 95 



— alveare, 94 



— annulifera, 94 



— arata, 98 



— armigera, 93 



— baby Ion ica, .... 98 



— blanda, 97 



— bizonalis, 91 



— bitseniata, 94 



— boykiniana, .... 100 



— canaliculata, .... 94 



— caliginosa, 100 



— catenoides, 1 00 



— catenaria, 93 



— cancellata, 93 



 — castanea, 92 



— cincinnatensis, . . 95 



— circincta, 99 



— clavaeformis, ... 93 



— comma, 95 



— columella, 96 



— congesta, 96 



— conica, 95 



— concinna, 98 



— costulata, 98 



— crebricostata, ... 97 



— curreyana, 97 



— depygis, 89 



— decora, 98 



— deshaysiana, .... 98 



— dubiosa, 93 



— duttoniana, 100 



Faoc. 



Melania ebenum, 93 



— edgariana, 97 



— elevata, 69 



— excurata, 96 



— florcntiana, 99 



— fuliginosa, 94 



 — fusiformis, 93 



— gemma, 91 



— globula, 95 



— gracilis, 94 



— hildrethiana, ... 92 



— holstonia, 100 



— hydei, 93 



— integra, 96 



— kirtlandiana, ... 92 



— laevis, 92 



— lecontiana, 96 



— laqueata, 97 



— monozonalis, ... 96 



— multilineata, .... 97 



— nassula, 97 



— nickliniana, .... 95 

 — • nitens, .. ....... 98 



— niagarensis, .... 90 



— nodulosa, . * . . . . 100 



— nupera, 97 



— obovata, 98 



— obtusa, 96 



— ocoeensis, 94 



— occidentalis, .... 95 



— olivula, 98 



— pillula 99 



— prasinata, 98 



— proxima, 99 



— potosiensis 99 



— pyrenella, 99 



— regularis, 94 



— rufescens, 93 



— rugosa, 96 



— salebrosa, 100 



— semicarinata, ... 100 

 -^ simplex, 100 



