-ioO LT.-COL. H, H. GODWIN-AUSTEN ON THE JjJOUD- [May 21, 



I have lately, in a paper read at the Malacological Society, 

 referred to the distinctness of this genus Sivella, constituted by 

 W. T. Blanford for the Indian species castra, which he made the 

 type. It differs in every respect from Discus, represented by 

 bicolor, stdcipes, &c. ; the anatomy of the latter I have been able to 

 examine in specimens sent me by my brother from the Nicobars. 



Genus Trochomoephoides. 



1. TEocuuiMOEPHOiDEs CONULTJS, Martens (p. 442). 



Katchall (de Roepstorff). 



Size: maj. diam. 11-2, min. 10-2; alt. axis 11*0 mm, 



Grenus Amphidromus. 



2. Amphibbomus andamanicus, var. nicobabica, Nev. MS., 

 Hand-list, p. 127 (p. 443). 



Of this species I have one specimen from Katchall. It is 

 somewhat larger than Andaman shells, and in colour is far paler 

 and with few markings, and those pale. These differences might 

 not hold good in a large series. 



G-enus Ennea. 



2. Ennea (Huttonella) moeechiana, De Eoepstorff MS. 

 Nevill, Hand-list MS. (p. 443). 



This species comes nearest to E. stenopylis of the N.E. frontier. 



Genus Stbeptaxis. 



1. Stbeptaxis andamanicus, var. (p. 443). 



This species comes near S. hlanfordi, Theobald. 

 Prom Arakan and Pegu. 



Genus Pupa. 

 1. Pupa (Pupisoma) consteictus, n. sp. (p. 443). 



Locality. South Andaman {de Roepstorff). 



Shell turbinate, perforate ; sculpture minutely costulate above, 

 from the swollen portion forwards the surface is smoother; 

 colour, pale ochraceous ; spire conic ; sides flat ; apex pointed ; 

 suture impressed ; whorls 5, convex, at the distance of half a turn 

 in the spiral behind the aperture there is a sharp swelling of the 

 whorl, marking apparently the position of the previous aperture, 

 but this is not seen in any of the whorls above; aperture ovate, 

 oblique ; pei'istome much thickened and reflected, united by a 

 thin callus on the body-whorl; sinuate below and on outer 

 margin. 



Size : maj. diam. 2'1 ; alt. axis 2-2 mm. 



Animal not yet seen, and it is difficult to say where this species 

 should find generic position. 1 sorted out from a tube full of 



