igi8.] H. H. Godwin-Austen : Mollusca, Vllh 597 



Only two specimens of this very beautiful species were found, 

 and one is immature. I name it in honour of Dr. N. Annandale, 

 Director of the Zoological Survey of India, to whom I am very much 

 indebted for valuable assistance in procuring species of Mollusca 

 from man}^ parts of India, and who since he has been in charge of 

 the collections has raised the zoological work in India both in 

 Vertebrates and Invertebrates to a high standard of excellence. 



We do not know at all the position of this genus founded on 

 shell characters. This particular species except for the very open 

 umbilicus is very similar, especially in the aperture, to Oxytes 

 aborensis. Now that the number of species is increasing in this 

 genus, it is a desideratum to obtain and examine the animal of one 

 so large as this. Although P. nevilli was quite abundant among 

 material from Sikhim preserved in spirit, in no single instance 

 could I find one that still contained the animal. 



Pseudokaliella ? sadiyaensis, n. sp. 



Locality.— ^didiy 3. (M. Qole). 



vShell scarcely perforate, flatly turbinate, sharply keeled; 

 sculpture fine, close regular costulation above, decussate below; 

 colour dull ochraceous; spire flatly conic, apex subacute ; suture 

 shallow; whorls 5, regularly increasing, not fully grown; aperture 

 semilunate, rather large for size of shell; peristome thin; colu- 

 mellar margin oblique. 



Size: major diameter 7*0, alt. axis 3"25 mm. 



There is only one example of this shell, its generic position 

 is very doubtful. As it comes from Sadiya, a large and easily 

 accessible station, it will I trust sooner or later be found again. 



Rahula aborensis, n. sp. 

 (Text-figs. 2 A, B.) 



Locality. — Sibbum, Yamne Vallev, Abor Hills, 3 specimens 

 (Li. G. F T. Oakes, R.E.). 



Shell deeply umbilicated, border sharply defined, trochiform, 

 base flat ; sculpture quite strongly and distantly costulated, smooth 

 on base, angular on periphery, with a well marked Urate edge; 

 colour pale ochraceous; spire high, sides slightly convex, apex 

 blunt; suture impressed; whorls 6, sides convex; aperture small, 

 narrowly quadrate; peristome thin, angulate on the lower outer 

 margin. 



Size: major diameter 3'5, alt. axis 25 mm. 



The strong costulation, convex sides, and small aperture dis- 

 tinguishes this from all forms at present known. From Sibbum 

 there was also a single specimen more globose than R. aborensis, 

 with no keel but with the costulation extending to the basal side 

 somewhat as is seen in R. dihingensis. Most unfortunately this 

 shell was broken after being photographed and can only be thus 

 briefly recorded. 



