250 



REPORT — 1856. 



No. 



Name. 



Freq. 



Other Localities. 



206 



207 

 690 

 691 



208 



209 

 210 



211 



212 



213 

 214 

 2Ub 



215 



216 

 217 



218 

 219 



Isognomon Janus, n. s. 



Pectinida. 



Pecteti circularis, Sow , 



, sp. ind. (a) , 



, sp. ind. (b) , 



Spondylidce. 

 Spondylus calcifer, n. s 



= S. Lamarckii, Hani. MS. 



— , sp. ind .' 



Plicatula penicillata, n. s 



= P. dubia, var. Sow. MS. 



221 

 222 



223 



224 

 225 

 226 

 227 

 228 

 229 



692 



Ostreadce. 



Ostrea iridescens, Gray 



? = O. spathulata, Lam. 

 ? = O. margaritacea, Lam. 

 ? = O. ceguatorialis, D'Orb. 

 ? = O. rufa, pars, Gld. 



— Virginica, Gmel 



? = O. rufa, pars, Gld. 



— Columbiensis, Hani. .... 



— conchaphila, n. s 



— (?? , var.) palmula , 



Comp. O. Cumingiana. 



— , sp. ind 



Anomiadce. 

 Placunanomia pernoides, Gray , 



~ Tedinia pernoides, Gray. 

 foliata, Brod. 



-\-P.pectinata, teste Gray. 



-\-P. echinata, teste Gray. 



claviculata, n. s 



Anomia lampe, Gray 



Class PTEROPODA. 

 Unknown. 



Class GASTEROPODA. 



Subclass Opisthobranchiata. 



Order Tectibranchiata. 



Cylichnidce. 



Cylichna luticola, C.B.Ad 



Tornatina infrequens, C. B. Ad. 



?= Bulla gracilis, Mke. 



— carinata. n. s 



Bullidce. 



Bulla Adamsi, Mke , 



Pnebulosa, Gld 



Quoyii, Gray , 



exarata, n. s , 



, sp. ind , 



Haminea cymbiformis, n. s 



Philinidce. 

 Smaragdinella thecapbora, (Nutt.) n. 



2 

 e. r. 



1 



v. r. 

 n. u. 

 e. r. 



e. r. 

 2 



2 

 v. r. 



n. c. 

 e. r. 

 e. r. 



2 



1 



1 



Guaymas. 



Panama. 



Bay of Fonseca. 



Senegal, Panama, Guacomayo. 



Atlantic, Panama. 



St. Elena. 



S.Diego,S.W.Mex., Pan.,W.Afr. 



Upper California, S.W. Mexico. 



San Diego, Panama. 



Senegal, Panama. 



S.W. Mexico, Island of Muerte 

 Guayaquil, West Indies. 



Monterey, La Paz,Pan., Guayaq. 



Panama. 

 Panama. 



Sta.Barb., SanDiego, Guaymas, 

 Galapagos. 



