82 Contributions to Indian Malacology, No. IX. [No. 2, 



its much stronger sculpture, less conical spire, deeper suture and 

 rounder mouth. It is also a smaller form. Mr. Theobald's type specimens 

 of D.polypleuris were from Nanclai, also on the northern portion of the 

 Khasi plateau. D. Austeni varies considerably in the sculpture of 

 the lower whorls, which are in most specimens, quite smooth. One 

 individual sent is considerably more tumid than the type, but 

 presents no other difference of importance. 

 6. D. oligopleuris, n. sp. PL III- %• 4. 

 Testa dextrorsa, non rimata, conico-ovata, costis distantibus 

 obliquis ornata, fulvescenti-albida. Spira cornea, apice obtuso, sutura 

 impressa. Anfr. 6, rotundati, antepenultimus major, tumidiusculus, 

 ultimus antice ascendens, subtus rotundatus. Apertura verticalis, late 

 auricularis, plica columellari valida munita ; perist. rectum, duplex, 

 internum antice porrectum, expansulum, externum late expansum, 

 margine columellari verticali, callo parietali mediocri. Long. 2, diam. 

 vix 11 mill. Ap. c. perist, f mill, longa. 



Hab. Teria Ghat ad latus meridionale montium Khasi. (H. Godwin- 

 Austen). 



This is evidently a peculiar type. In some specimens the 

 sculpture on the lower whorls appears to be more or less obsolete. 

 The form is not unlike that of polgpleuris and Austeni but it is easily 

 recognised by its strong distinct costulation. In this character it 

 resembles D. scalaria. 



The smooth or spirally Urate Diplommatince of Southern India I 

 have proposed to distinguish as a subgenus under the name Nicida. 

 This will include, 



Diplommatina (Nicida) Nilgirica, W. and H. Blanf. Nilghiris. 



(Type.) 



D. (Nicida) Xingiana, W. and H. Blanf., Kolamullay ; and the 



following additional species. 

 D. (Nicida) Fulnegana, n. sp. a less tumid form than D. Kingiana 



with more convex whorls, deeper sutures, oblique aperture and a 



non-ascending last whorl. It has no basal keel. Common on the 



Pulney hills where Mr. Fairbank obtained it. 

 D. (Nicida) nitidula, n. sp., a tumid species, more so than any other 



met with, and with flattened whorls, Found in the Wynaad by 



Capt. Beddome. 



