1875.] Species of Operculated Land-Shells. 7 



Shell — major diam. - S5, minor 05G in. 



Helicarion gigas was described by Benson as Vitrina in J. A. S. B., 

 Vol. V, p. 350. 



EXPLANATION' OF PLATES. 



Plate II. 



Fig. 1. Helicarion Shillongense, var. la. Shell of ditto. 



2. ,, branneum. 



3. „ Nagaense. 3a. Animal : mantle, side view. 35. Mantle from 

 above. Be. Mucous gland. 



i, 4a. Parmarion ? rubrum. 4b. Shell of ditto. 4c. Extremity of foot. id. 

 Head -withdrawn below mantle. 4e. Mantle from above. 



5. Helicarion solidum, G-A., shell. 5a. Mantle from above. 5b. Mantle, 

 side view. 5c. Mucous gland. 5d. Extremity of foot. 



Plate III. 



1. Helicarion gigas, Bs., nat. size. 



2. „ small var. „ 



III. — Descriptions of New Operculated Lan d 'shells belonging to the genera 

 Craspedotropis, Aly casus, and Diplommatina,/r0»2 the Nagd Hills and 

 Assam. — By Major H. EL Godwin- Austen, F. B. O. S., F. Z. S., Sfc. 



(Received Sept. 1874 ;— Eead February 3rd, 1875). 

 (With Plate IV). 



Ceaspedoteopis etmbbiatus, n. sp., Plate IV, Fig. 1. 



Shell conoidly turbinate, closely umbilicated, thin, covered with a rough 

 dark brown epidermis, longitudinally striate, a leaf-like fringe adorns the 

 periphery of the last whorl, spire conoid, its side concave, apex attenuate, 

 blunt, suture deep ; whorls 5, flat above, aperture diagonal, circular, 

 the lip slightly reflected, peristome thin. Operculum multispiral, flat, 

 smooth on outer surface. Animal not seen. 



Major diam. 0'19, alt. 0'15 in. 



Sab. — Hengdan Peak, Naga Hills, at 7,000 ft., in forest. 



Only one specimen was obtained. This is a very interesting shell, as 

 being the first of the genus from this part of India ; Craspedotropis, esta- 



