336 



tundato-lunari, iamella mediocri parietali et plicis 2 parallelis 



columellm coarctatn ; perist. simplice, recto. 

 Long. 4, diam. 2į mill. 

 Hab. Sandvvich Islands (Dr. Netocomb). 



58. TORNATELLINA PERFORATA, Pfr. T. tCStū perfoTūta, OVūtO- 



turrita, arcuato-striata, tenui, albido-hy alina ; spira elongata, 

 apir.e acuta ; anfr. 7 convexis, ad suturam distanter plicatulis, 

 ultimo \ longitudinis paulo superunte ; Iamella parietali minuta ; 

 apertura vix obliįua, sinuato-ovali, acuminata ; columella lamina 

 tortą munita ; perist. tenui, margi/ie dextro recto, superne antror- 

 sum arcuato, basali eipanso, columellarifornicatim reflexo, patente. 



Loug. 18, diam. 7\ mill. 



Hab. Venezuela. 



Descriptions of Sixteen New Species of Pneumono- 



POMA, FROM THE CoLLECTION OF H. CuMING, Esa. 



By Dr. L. Pfeiffer. 



A. Opisophthalma. 



1. DiPLOMMATiNA Cantori, PtV. D. testū suhrimata, sinis- 

 trorsa, ovato-oblonga, tenuiuscula, eonfertim et ohligue plicata, 

 albida ; spira ovata, in conum acutiusculum terminata ; anfr. 

 6 convexi2isculis, ultimo ascendente, \ lo7iffitudims vix siiper- 

 ante ; apertura suhverticali, circulari ; perist. subsimplice, con- 

 tinuo, superne adnato, cceterum breviter expanso. 



Long. 2, diam. I mill. 



Hab. Lord Howe's Island, New Hebrides {Mr. Maegillivray) . 



2. Truncatella Ceylanica, Pfr. Tr. testą subrimata, atte- 

 nuato-cylindracea, striatula, pellucida, nitida, corneo-rvfa vel 

 favescente ; anfr. svperst. 4, supremis 2 rotundatis, religuis 

 planioribus, omnibus ad suturam j^Ucato-crenatis, ultimo basi 

 non compresso ; apertura verticali, ampla, anyulato-subovali ; 

 perist. continvo, margine dextro tenui, expansiusculo, columel- 

 lari leviter arcuato, appresso. 



Long. 6, diam. 2 mill. 

 Hab. Ceylou. 



3. Trtjncatella teres, Pfr. Tr. testą vi^ subrimata, cylin- 

 drica, tenuiuscula, longitudinaliter magis minusve distincte 

 costulata, j)ellucida, nitidu, rufo-cornea ; sutura marginata, 

 valide plicato-crenat a ; anfr. svperst. 4 subceąualibus, convex- 

 iusculis, ultimo basi breviter cristato, calloso, albido ; aper- 

 tura verticali, late ovali, superne angulata, ad dextram dila- 

 tata ; perist. simplice, continuo, margine dextro expansiusculo, 

 columellari adnato. 



Long. 6, diam. 2 mill. 



Hab. Isle of Mauiitius, and Trinity Bay, Australia. 



