10 Dr. P. P. Carpenter on new Forms of Mollusks 



35. Ci/t/mia asteriaphila. 



C. testa C. tumenti simillima, sed umbilico minore, baud carinato , 

 tenuissima, diapbana ; anfr. iv., tumidis ; vert. nucl. normali, baud 

 stybneo, apice niainibato : operculo tenulssinio, eleraentis conceu- 

 tricis, nucleo submediauo sinistrorsum sito. Long. "03, long, 

 spir. -015, lat. -025 poll., div. 60°. 



A solitary specimen was found by Dr. Stimpson, imbedded in 

 a star-Hsh, like Stylina ; from which genus the vertex and oper- 

 culum distinguish it. 



36. Bittium nitens. 



B. testa regulari, rufo-fusca, bic et illic pallida, maxima nitente ; 

 anfr. nucl. iii., Ipevibus, tumidis, apice submamillato, subdeclivi ; 

 norm, vi., tumidis, suturis inipressis ; costis radiantibus circ. xiv., 

 baud contiguis, angustis, interstitiis undatis ; costulis rotundatis, 

 spiralibus, in spira iv., quarum postica multo minor, supercur- 

 rentibus, ad intersectiones subnodosis ; costulis circa basim sub- 

 rotundatam iv., baud decussatis ; apertura subquadrata ; columella 

 baud truncata, obtuse angulata ; labro acuto, a costulis indentato; 

 labio iuconspicuo. Long. "21, long. spir. "IG, lat. "06 poll., div. 20°. 



37. Manyelia subdiaphana. 



31. testa parva, subdiaphana, albida, interdum rufo-fusco palHde 

 tincta ; satis turrita, marginibus spirse parum excurvatis ; anfr. 

 nucleosis iii., Isevibus, diapbanis, apice mamillato ; norm, iv., satis 

 excurvatis, baud angulatis, suturis inipressis ; fascia super spiram 

 pallide fusca, alteraque Candida coutigua ; costulis radiantibus 

 xiv.-xviii., acutis, subrectis, distantibus, interstitiis undatis ; tota 

 superficie minute et creberrime spirabter striata ; basi producta, 

 striis magis expressis ; apertura subelongata ; labro ad dorsum 

 incrassato, postice distincte eniarginato, intus baud dentato ; labio 

 tenuissimo; columella recta, antice late canaliculata. Long. •19, 

 long. spir. '1, lat. '00 poll., div. 30°. 



38. Drillia appressa. 



D. testa parva, compacta ; rufo-fusca, interdum supra costas palU- 

 diore ; marginibus spirse excurvatis; anfr. norm, vi., planatis, 

 suturis indistinctis ; costis tuberculosis radiantibus circ. xiv., antice 

 et postice obsoletis ; striolis spiralibus creberrimis ; costa spirali 

 irregular! postica, tuberculosa, super suturas appressa ; area sinus 

 parvi vix definita ; basi satis prolongata ; apertura subquadrata; 

 labio distincto. Long. '3, long. spir. '17, lat. '12 poll., div. 40°. 



39. Cithara fusconotata. 



C. testa parva, satis turrita, tenui, albida ; postice linea, sen serie 

 macularum, rufo-fusca, interdum altera j)eripberiali ornata ; mar- 

 ginibus spirse rectioribus ; anfr. nucl. ii., rotundatis, apice mamil- 

 lato ; norm, vi., in spira rotundatis, suturis inipressis ; basi satis 

 rotundata ; costis radiantibus circ. ix., acutis, distantibus, autice 



218 



