4 Dr. P. V. Carpenter on new Forms of Mollusca 



205 h. Phasianella (? conijita, var.) pvlfoides. 



P. testa P. y>«//o siinilliiiia; solida, compacta, s|)ira hreviore ; sufuris 

 distiiicti^. Long. '2, lon;^. spir. •!, lat. •13, div. 5.">^. 



Hah. Sta. Barbara \Jeu-ett) ; Monterey, 20 fathoms (State 

 Coll. no. 353). Smaller var., 8-10 fathoms, Calaliua Island 

 [Cooper). 



2G5 c. Phasianella (? compta, var.) elatior. 



P. testa perparva ; spira elongata, iit in P. piillo picta ; anfiactibns 

 snbplaiiatis ; suturis baud impressis ; columella hand lacuiiata. 

 Long, 'la, long. spir. -12, lat. '11, div. 40°. 



Hab. Sta. Barbara [Jewel t). 



P. compta, with a larire proportion of the small shells of the 

 ^eniis, is included under P. pidlus in Mr. Reeve's monoirraph. 

 In so difficult a tribe, it is judged better to name the di>tnict 

 forms, and those from separated localities, until more is knosvu. 



270. Trochiscus convexus. 



T. testa parva, subelevata, purpureo-fusca, temiiter sculpta; anfr. nucl. 

 ? siiiistralibus, vertiue quasi deeollato ; norm, iv., eonvexis, suturis 

 impressis ; obtusissime bicarinatis, striolis confertissiinis, minimis, 

 subobsoletis cinctis ; umbilico uiajore, costis duabus cincto, quarum 

 interior acuta, exterior rotuudata, crenata ; apertura circulari. 

 Long. •!.'), long. spir. •0(i, lat. 'iii, div. yu^. 



Hab. Monterey [Jewell). 



The nuclear whorls in this unique little shell and in the typi- 

 cal species a))pear suiistral, as in Phoridse and Solariad;e. The 

 operculum also resembles that of Solarium rather than of Tro- 

 clius. The genus nuiy prove to belong to the Proboscidifers, 

 notwithstanding its nacreous texture. 



'O 



317. Hipponi/x lumens. 



n. testa normaliter fornicata, rotuudata, albida ; epidermide mgnlosn, 

 iuierstitiis pilulosa ; vertice nucleoso nautiloideo, l?evi, paiuni tu- 

 meute, apice celato, iiUerdum persisteute ; deiu rapidissime au- 

 gente, expansa, uudique regulariter areuata ; liris acutis, subele- 

 vatis, distantibus, spiralibus, aliis iutercalautibus ; liueis iucre- 

 nienti minoribus decussautibus ; margine ncuto ; apertura j»le- 

 rumque rotuudata : cicatrice uuisculari a margiue parum reniota, 

 regione capitis valde interrupta. Long. •", lat. "46, alt."oi5, div.'JU°. 



Hab. Sta. Barbara [Jewell); S. Pedro [Cooper). 



= " H. Uubrufa"-i-" Cupuius, 213," Brit. Assoc. Hep. :857, 



P-^^"- 282 • 



