578 



Records of the Indian Museum. 



[Vol VIII, 



Magazine of Natural History on the classification of the Cyclosto- 

 macea of Eastern Asia (p. 463) says, "These species (referring to 

 " P. himalayae and piettrophorus oi Benson) agree well in general 

 " form and in sculpture with the European members of the genus. 

 " Some slight differences, however, in the characters of the peri- 

 ''stome and of the operculum may be sufficient to entitle the 

 " Indian forms to sectional or even subgeneric distinction." 



Pscudopomatias siyomensis, n. sp. 



(Text-figs. 5 A and 6 C.) 



Locality. — Siyom, Abor Hills, x 28-31 , L- 94*40 [Capt. G. F. T. 

 Oakes). 



Shell perforate, elongately turreted, attenuate, solid; sculpture 

 well defined strong co.stulation, more pronounced and distant on 



A 



B 



Fig. 5 A. — Pseudopoimitias siyomensis, n. sp. 

 ,, 5 B. — ,, lityorensis, n. sp. 



,, 5 C. — Ei(pomati(is sibbiiiiie)isis, n. sp. 

 ,, 5 D. — ,, oiikesi, n. sp. 



(All multiplied 1-5.) 



last whorl; colour white; an old well grown shell; spire long, sides 

 flatly convex, fining to the apex which is sharp; suture impressed ; 

 whorls Q, flatly convex; aperture circular, vertical; peristome 

 double, inner thickened, a slight nick on the upper sutural margin. 



Size: major diameter 4*4, alt. axis I2'2 mm. 



Only one specimen was found, but this is fully grown. It 

 has much the shape of P. graudis of the Dafla Hills, but has much 

 stronger costulation. I give a figure (fig. 6 D.) of the basal side 

 of P. himalayae to show how it differs from this species. 



Pseudopomatias luyorensis, n. sp. 



(Text-fig. 5 B.) 



Locality. — Luyor, Abor Hills {Capt. G. F. T. Oa/ies), 

 Shell perforate, elongately fusiform, turreted, somewhat tu- 

 mid, solid; sculpture fine close and regular costulation; colour 

 pale umber brown; spire high, sides flatly convex, apex pointed; 

 suture impressed; whorls 7, sides convex; aperture circular, verti- 



