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



265 b. Phasianella (? compta, var.) pulloides. 



P. testa P. pullo simillima; solicla, compacta, spira breviore ; snfiiris 

 distinctis. Long. '2, long. spir. *1, lat. '13, div. 55. 



Hob. Sta. Barbara (Jewett) ; Monterey, 20 fathoms (State 

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

 (Cooper). 



265 c. Phasianella (? compta, var.) elatior. 



P. testa perparva ; spira elongata, ut in P. pullo picta ; anfractibui 

 subplanatis ; suturis haud impressis ; columella hand lacuiiaia. 

 Long. -19, long. spir. '12, lat. '11, div. 40. 



Hab. Sta. Barbara (Jewett). 



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

 genus, is included under P.pullus in Mr. Reeve's monograph. 

 In so difficult a tribe, it is judged better to name the distinct 

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



276. Trochiscus convexus. 



T. testa parva, suhelevata, purpureo-fusca, tenuiter sculpta; anfr. nucl. 

 ? sinistralibus, vertice quasi decollate ; norm, iv., convexis, suturis 

 impressis; obtusissime bicarinatis, striolis confertissimis, nmiitnis, 

 subobsoletis cinctis ; umbilico majore, costis duabus cincto, quaruin 

 interior acuta, exterior rotundata, crenata ; apertura ciiculari. 

 Long. -15, long. spir. '06, lat. -15, div. 90. 



Hab. Monterey (Jewett). 



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

 cal species appear sinistral, as in Phoridse and Solariadse. Tiie 

 operculum also resembles that of Solarium rather than of Tro- 

 chus. The genus may prove to belong to the Proboscidifer>, 

 notwithstanding its nacreous texture. 



317. Hipponyx lumens. 



H. testa normaliter fornicata, rotundata, albida ; epidermide rngnlosn, 

 interstitiis pilulosa ; vertice nucleoso nautiloideo, Isevi, parurri tu- 

 mente, apice celato, interdum persistente ; dein rapidissiine au- 

 gente, expansa, undique regulariter arcuata ; liris acutis, subele- 

 vatis, distantibus, spiralibus, aliis intercalantibus ; lineis incre- 

 menti minoribus decussantibus ; margine acuto ; apertura ple- 

 rurnque rotundata : cicatrice musculari a margine parum reniota, 

 regione capitis valde interrupta. Long. 7, lat. *46, alt. *33, div. 9U. 



Hab. Sta. Barbara (Jewett); S. Pedro (Cooper). 



. *subrufa" + " Capulus, 213," Brit. Assoc. Rep. ]857, 



282 



