GASTROPODA. 39 



Ones are inserted ; the last and highest of the thin plaits, meets the 

 basal plate at a very acute angle. 



Locality,— -Common at Yenangyat and Minbu. 



Remarks. — The arrangement of the plaits on the columella is 

 according to K. Martin the chief distinctive feature of this species ; 

 now the specimens from Burma show the secondary plaits, inserted 

 further in between the primary ones, as well as the acute angle at 

 which the last one meets the basal plate. 



CANCELLARIA CANCELLATA, Lam., Plate IX, Fig. 2— 2&. 



. {Synonymes : Hoernes, Die fossil. Mollusk, des Tertiar v. Wien. Abhandl, d. K. K. 

 Geolog. Reichsanstalt, vol. Ill, page 316.) 



Only one specimen of 14 mm. height has come under examina- 

 tion, but this is so well preserved that there can be no doubt as to 

 its identity. The shell is sub-globular, the whorls ventricose, the 

 suture deep. The sculpture consists of strong longitudinal ribs 

 which run obliquely and are a little accuminated at both ends ; they 

 are crossed by strong revolving ribs, which alternate rather regularly 

 with finer ones ; in the interstices minute longitudinal lines , produce 

 a reticulate sculpture ; aperture not clearly visible. 



Locality. — Very rare at Yenangyat. 



Remarks. — It is greatly to be regretted that only one specimen of 

 this interesting form has been found, which so far seems to differ in 

 no way from living specimens in the collection of the Indian Museum 

 at Calcutta. 



RAPANA, Sp< 



A very ill-preserved shell, possessing an elevated turreted spire 

 and strong nodules along the keel of the whorls; it might perhaps be- 

 long to this genus, considering that there are signs of rather a large 

 umbilicus; on the last whorl there are a few irregular revolving ribs. 



Locality. — Rare at Yenangyat. 



TEREBRA FUSCATA, Brocc, Plate IX, Fig. 3—4. 

 1856. Terebra fuscata, Hoernes, die foss. Moll, des Tert, Beck. v. Wien, Abhandl. 

 d. k. k. Geolog, Reichsanst., vol. Ill, page 128, plate If, 

 figs. 15, 16, 17, 18,26. 

 None, of the specimens under examination are completely pre- 



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