ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 275 



Name. 



Station. 



No. of 

 Speci- 

 mens. 



Other Localities. 



$eritma,ipictdL,Sow.(nonHo2ning.) 

 [N.B. Lieut. Green's specimens, 

 quoted from San Miguel as 

 of extraordinary size, are pro- 

 bably N. cassiculum, Sow.] 



strictly marine : sticks 

 and stones in grove, 

 \-t.-\- : dirty places 

 on rocks, ^-t. — . 



under stones, h. w. 

 under stones, h. w. 



290 



90 

 3 



Pan., on mud-bank partially overflowed 

 with fresh water, Cum. 



Guayaq., near brackish water, Fontaine. 





= Marinula Recluziana, Cum. 

 MS. 



concinna, n. s 



' infrequens, n. s 



Panamensis, n. s 



stagnalis, D'Orb 



on short mangrove 



suckers, h.w. 



under stones, h. w. 



u.s., h.w., or crawling 



over wet stones, 

 under heap of stones, 



above h. w. 



on and under stones 



and rocks, h. w. 



74 



6 

 650 



36 



800 



1 



2 



400 



Guayaquil, marsh and even fresh water, 

 Font. ; I. Tumaca, Cum. MS. 



-\-papillifera, Kiist. 

 Tabogensis, n. s 



, SD 



under stones, h. w. 

 under heap of stones, 



h. w. s. 

 under heap of stones, 



h. w. s. 



Truncatella Bairdiana, n. s 



'? dubiosa, n. s.(?Assiminea) 



550 







2 



28 

 25 



25 + 



io+ 



1 

 2 

 12 



14 



16 



1 

 3 



4 



12 



8 



20 



2 



2 



1 

 10 



Acap., Jewett ; sandy mud, 10 fm., Cum. 



attached by one side of all the whirls. 



Coral reefs, Toubouai, Soc. Is., Cum. 



Lobos Is., on stones in coarse sand, 



17 fm., Cum. 

 Panama, Galapagos, on rocks, Cum. 



sandy mud, 1 1 fm., Is. Muerte, Cum. 

 Xipix., Sal., on shells, deep water, Cum. 



Is. Muerte, on dead shells, sandy mud, 



12 fm., Cum. [D'Orb. 



on St., sdy. md., 6-10 fm., Cum. ; Payta, 



Is. Muerte, on dead shells, in sandy 



mud, 11 fm., Cum. 



Caraccas, sdy. mud on dead shells, 7-14 

 fm., Cum. 



(Cylichna) luticola, n. s. ... 



on liquid mud, 1. w. 



= punctata, Ad. 





Vermetus glomeratus, (quasi) 

 Lam. pars. 

 \_ = Aletes ?centiquadrus, Val.] 



rocks & stones, l.w. n. 



attached by end of 



spiral portion, 

 rocks & stones, l.w. n. 











stones and shells, 1. w. 



stones and shells, 1. w. 

 stones, 1. w. 



under stones, 1. w. 

 dead shells, 1. w. 



Comp. Pileopsis pilosus, Desh. 



Guer. Mag. 1832, pi. 19. 



Panamensis, nom. jjrov. . . . 



[ = antiquatus, Linn.] 



| radiata, Sow. (non Quoy, 



nee Lam.) 



[ = Gray anus, Mke.] 

 ^alyptrsea aberrans, n. s 



[? = Crep. unguiformis, var.] 

 (Syphopatella) aspersa, n. s. 



[ = Galerus.~] 

 cepacea, Brod. 



dentata, Mke 





=rugosa, Rve. non Desh. 

 = Crucibulum imbricatum, var.] 



(Calypeopsis)hispida, Brod. 



1 [= Cruc. spinosum, pars.] 



under stones, 1. w. 



4 maculata, Brod. (non Quoy) 



\_=Cruc. spinosum, pars.] 



1 planulata, n. s 



* radiata, Brod 





on oyster, £-t. — 



n 





T c 2 



