INDEX TO MOLLUSCA OF NEW YORK 



IOI 



Bullidae, 26'. 

 Bythinella, 19 7 . 



attenuata, 19 7 . 



obtusa, 19'. 

 Bythinia, i8 : . 



tentaculata, 18 7 . 

 Bythininae, 18 7 . 



Caecidae, n 5 . 



Caecum, n 8 . 



cooperi, n 8 . 



pulchellum, n 7 . 

 Calyculina, 72 s . 



partumeia, 73*, 73 s . 



rosacea, 73 s . 



securis, 74 1 . 



transversa, 72 s . 



truncata, 73 s . 

 Calyptraeidae, 9 T . 

 Calyptrea striata, 9 s . 

 Campeloma, 23 7 . 



decisa, 24 7 . 



decisum, 23 7 . 



ponderosum, 23 7 . 

 Cardiidae, 78 1 . 

 Cardita borealis, 80 3 . 

 Carditinae, 80 2 . 

 Cardium, 78*. 



(Cerastoderma) ciliatum, 78 s . 



groenlandicum, 78 7 . 



islandicum, 78 s . 



(Laevicardium) mortoni, 78*, 78 s . 

 (Cerastoderma) pinnulatum, 78 1 , 

 78;. 



Cavolina salmonacea, 27 s . 

 Cemoria noachina, 25 s . 

 Cephalopoda, 3*. 



Cerastoderma ciliatum, see Cardium 

 (Cerastoderma) ciliatum. 



pinnulatum, see Cardium (Ceras- 

 toderma) pinnulatum. 

 Cerithiidae, 14 7 . 

 Cerithiopsis, 14 9 . 



emersoni, 15 1 . 



greeni, 14 9 . 



punctatum, 15 2 . 



terebellum, 15 2 . 



terebrale, 15'. 



Cerithium greenii, 14*. 



nigrocinctum, 15 s . 



sayi, 14 8 . 

 Chaetopleura, 63 s . 



apiculata, 63 s . 

 Chemnitzia bisuturalis, 13 3 . 



fusca, 13 7 . 



impressa, 13 5 . 



interrupta, 12 s . 



seminuda, 13 6 . 



trifida, 13 2 . 

 Chiton albus, 64 1 . 



apiculatus, 63 s . 

 Cingula aculeus, 19 2 . 



laevis, 19*. 



minuta, 19 2 . 

 Cionella subcylindrica, 44 s . 

 Circinaria, 41 1 . 



concava, 41 1 . 

 Clathurella, 7 8 . 



plicata, 7 9 . 

 Cochlicopa, 44 s . 



lubrica, 44 s , 44*. 

 Cochlodesma, 66\ 



leana, 66 7 . 



leanum, 66 s . 

 Columbella, 6 s . 



avara, 6 s . 



gouldiana, f. 



lunata, 6°, f. 

 Columbellidae, 6 7 . 

 Conulus chersina, 31 3 . 



fulvus, 31 2 . 



minutissima, 32 7 . 

 Corbula, 66\ 



contracta, 66 1 . 

 Corbulidae, 66 1 . 

 Crassatellidae, 79 7 . 

 Crenella, 96'. 



decussatus, 06 8 . 



grandula, 96 s , 96 7 . 

 Crenellinae, 96 s . 

 Crepidula, g 9 . 



convexa, io 2 . 



fornicata, 9", io 1 . 



glauca, io 5 . 



plana, io 3 . 



unguiformis, io\ 

 Crucibulum, 9*. 



striatum. 9*. 



