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NEW YORK STATE MUSEUM 



Mcsomphix intertexta, 31*. 



ligera, 31 8 . 

 Metaptera alatus, 84 s . 



gracilis, 84 s . 

 Micromya, 80 8 . 



fabalis, 80 6 . 

 Modiola modiolus, 96 s . 



plicatula, 96*. 

 Modiolus, 96 s . 



demissus plicatulus, 96*. 



modiolus, 96 s . 

 Monotremata, 27*. 

 Montacuta, 79 s . 



bidentata, 79 s . 



elevata, 79 s . 

 Mulinia, 67*. 



lateralis, 67 s . 

 Muricidae, 4 1 . 

 Mya, 65 s . 



arenaria, 65®. 

 Myacidae, 65 s . 

 Mytilidae, 95 s . 

 Mytilis edulis, 95*. 

 Mytilus, 95 s . 



borealis, 95 s . 



corrugatus, 96*. 



decussatus, gff. 



edulis, 96 1 . 



hamatus, g6 2 . 



modiolus, o6\ 



notatus, 95 9 . 



pellucidus, 95 s , 96 1 . 



plicatulus, 96 s . 



Nassa, 6 2 . 



obsoleta, 6 5 . 



obsoletum, 6 8 . 



trivittata, 6 2 . 



vibex, 6*. 

 Nassidae, 6 2 . 

 Natica, 8 s . 



clausa, 9 1 . 



duplicata, 8 s . 



flava, 9 2 . 



heros, 8 8 . 



immaculata, 8 9 . 



pusilla, 8 4 . 



triseriata, 8 T . 

 Naticidae, 8 3 . 



Neptuna despecta, 4*. 

 Neptunea, 4*. 



decemcostata, 5 1 . 

 Neptuniinae, 4*. 

 Nucula, 94 s . 



gouldi, 94 9 . 



proxima, 94 s ' 



radiata, 94 s . 



sapotilla, 95*. 



thraciaeformis, 95 s . 

 Nuculidae, 94 s . 

 Nudibranchiata, 27 2 . 



Obovaria, 84 s . 



ellipsis, 85 1 . 



leibii, 8 4 9 . 

 Odostomia, 13 2 . 



bisuturalis, 13 8 . 



fusca, 13 7 . 



impressa, 13*. 



insculpta, 13 4 . 



seminuda, 13 8 . 



trifida, 13 2 . 

 Ommatostrephes, 3 T . 



saggittatus, 3 s . 

 Ommatostrephidae, 3 T . 

 Omphalina, 27*. 



arborea, 30 3 . 



cellaria, 2S 7 . 



exiguus, 30 9 . 



ferrea, 29 s . 



fuliginosa, 27 s , 28 2 . 



indentata, 29 s . 



inornata, 28 s . 



ligera, 31 9 . 



minuscula, 30 T . 



nitida, 29 s . 



viridula, 28 s . 

 Opisthobranchiata, 25 7 . 

 Osteodesma hyalina, 66 9 . 

 Ostrea, 97 7 . 



borealis, 97 7 . 



canadensis, 97 s . 

 Ostreidae, 97 T . 



Paludina decisa, 23 s , 24*. 

 disscisa, 23 s . 

 integra, 23 s , 24 1 . 

 isogona, 22 s . 



