208 



last meeting ; and it was referred to the Publishing Com- 

 mittee. 



Dr. Gould read interesting extracts from a letter lately 

 received from Rev. F. Mason, of Tavoy, accompanying 

 valuable contributions for the Cabinet, and giving many in- 

 teresting details relating to the habits of the animals sent. 

 The specimens presented were, the head and portions of the 

 Skin of a Python, Horns of the Muntjak and Rusa Deer, 

 Pveptiles, Insects, Plants, Shells, and various other articles. 



Dr. G. also read descriptions of four species of Trunca- 

 tella from the Collection of the Exploring Expedition. 



Truncatella aurantia. Testa parva, decollata, conico- 

 cylindracea, aurantia, sub-perforata, longitudinaliter confertim 

 clathrata ; clathris elevatis, rectis, numero ad 40 in singulis an- 

 fractibus: spira anfr. 5 convexis : apertura obliqua, ovata ; 

 peristomate albo, continuo, reflexo. Long. y%, lat. yV poll. 

 Hah. Mangsi Island, Borneo. 



Its principal characters are its large size, very convex whorls, 

 and very numerous bars. T. CarihbcBorum, Sowb. is often of 

 the same color, but is more robust, the whorls less convex and 

 the bars less numerous and less elevated. 



Truncatella Vitiana. Testa decollata, conico-cylindracea, 

 solidula, flavido-cinerea ; spira anfr. superstitibus 4-5 planiuscu- 

 lis, costulis subrectis, elevatis, obtusis ad 30 clathratis : apertura 

 obliqua, rotundato-elliptica ; peristomate expanso, continuo, an- 

 fractui penultimo baud adnato, costa marginato quse postice ad 

 suturam producta est; operculum laminatum. Long, j^^, lat. 

 yij poll. Hah. Feejee Islands. 



One of the largest species, though it varies greatly in size. 

 It is especially distinguished by the peculiar mode in which the 

 lip forms its junction posteriorly. The bars also become fused 

 posteriorly, so that the intervening flutings do not always reach 

 the suture. It differs from T. aurantia in color, is more solid, 

 and the bars are less numerous. 



Truncatella porrecta. Testa parva, elongata, sub-cylin- 

 drica, decollata, albida ; spira anfr. superstitibus 4 convexis. 



