OP CONCIIOLOGY. 379 



JSfassa obliqua. • Cyprvea fusco metadata. 



Coralliohia sculptills. " Candida. 



Torinia conica. Planaxis abbreviata. 



Turricula putillus. Pedicularia Pacifica. 

 Mitroidea, n. gen. (Mitridse.) 

 " multiplicata. 



To this paper is added the following, by P. P. Carpenter, 

 which we copy for the benefit of American conchologists:* — • 



"The following list of synonyms, drawn out from a careful 

 comparison with the Cumingian Collection, and with the types 

 described in Dr. Gould's 'Otia,' which happened, fortunately, 

 to be temporarily in my possession, may be useful to those 

 who have received the shells under Mr. Pease's MS. names." 

 —P. P. C. 



Atys debilis appears to be identical with A. succisa, Ehr., and 

 simply a slender variety of A. alicula, A. Ad. 



Fissurella granifera, Pse., is a good species of Gtyphis. 



Rimula fenestrata, Pse., is a very young Gtyphis. 



Conus fusiformis, Pse., (= C. pus ilia, Pse., Olim.) is a small 

 species of Oonella, Swains. 



Daphnella bella, Pse., belongs to one of the Columbelloid 

 genera, probably to Anachis. 



Githara costuli/era, Pse., = Anachis atomella, Sowb., var. 



G. varia, Pse., is probably an Anachis, = Columbella vir- 

 ginea, Gld., (from type.) 



G. Garrettii, Pse., is a Mitrella. 



Borsonia corrugata, Pse., = (Clathnrella) nebulosa, Pse., 

 (teste H. Cuming.) 



Natica undulata, Pse., = appears to be the young state of 

 the Pacific variety of N. maroccana, Chemn. 



Nassa plicata, Pse., is a dwarf, strongly sculptured variety 

 of N. olivacea, Brug., (teste H. Cuming.) The characters of 

 th« mouth exactly agree. 



A", microstoma, Pse., is a white variety of A. dermestina, 

 Gld. 



A. turricula, Pse., and A. unifasciata, Pse., appear to be va- 

 rieties of N. paup>era, Gld., = phbecula, Gld., (from types.) 



Columbella pellucida, Pse., is probably a Xitidella (or Mi- 

 trella.) 



0. flammea, Pse., belongs to the same section ; it appears to 

 be a variety of 0. tieniata, Ad. and Eeeve, (not Phil.) 0. 



* We suppose Mr. Pease will scarcely acquiesce in all of these decisions. 



