80 Contributions to Mian Malacology, Xo. IX. [No. 2, 



Long. 31, diaui. 2 mill. Apertwa c. peristoma*) vix 1J mill, 

 longa, diam. intus circa §. 



Hab. rarissime ad Habiang in montibus Garo dictis, ad latus oc- 

 cidental montium Khasi. (H. Godwin- Austen.) 



In sbape this form approaches the Darjiling D. Blarfordu, na, 

 Bens, but may easily be distinguished by the distant and promment 

 sculpture. But two specimens were found. 

 3. D. labiosa, n. sp. PI. II, fig. 3. 



Testa dextrorsa, non rimata, ovato-acuminata, pallide succinea, soli- 

 dula Spira attenuato-conica, subturrita, apice acutiusculo, sutura 

 impressa. Anfr. 7*-8 convexi, primi confertim costulati, 3 ultmu 

 tevigati, nitiduli, antepenultimus major, ultimus versus aperturam 

 interdum subdistanter costulatus, antice ascendens. Apertura verticals, 

 late anricnlaris, subcircularis, plica columellari valida mumta ; peri- 

 stoma rectum, incrassatum, subtriplex, externum valde expansum, 

 internum expansum, sulcatum, subduplex, margine columellari brev>, 

 subsinuato, snbtus angulo vix saliente desinente ; callo panetah, 

 tenui, mediocriter expanso. 



Long. 3f, diam. vix 2 mill. Ap. 0. peristomate 1J mrll. longa, 



aiam. intus circa f. _ 



Hab. Mayong et Hahiang in montibus Khasi et Garo dictis. 



(H. Godwin-Austen.) 



This shell is, in some respects, intermediate hetween D.pacly- 

 aheilns, Bens, and D. diploeheil*,, Bens. It has the general form of 

 the first hut resembles the last in its smooth lower whorls. The 

 peristome is largely developed and peculiar, the inner portion being 

 flatly expanded and almost divided into two portions by a groove, 

 so that the whole lip is almost triple. 

 4 D. eiBBOSA, n. sp. PI. II. fig- 4. 



Testa sinistrorsa, vix suhrimata, gibhoso-ovata, tnmida, succinea, 

 lievieata, parum nitida, tenuiuscula. Spira supra conoidea, sutura 

 valde impressa, apice obtusiusculo. Anfr 5. antepenultimus major, 

 ventricosns, ultimus subtus rotundatus, alte ascendens. Aper- 

 tura obliqua subelliptica, plica columellari valida obliqua mumta, 

 infra plicam excavata ; peristoma leviter sinuatum, expansum, duplex, 

 -ternum retro relictum, internum continuum, patens, callo panetali 

 Wo, suturam fere attingente. Long. 3, diam. l|mill. Ap. c. penst. 

 11 mill, longa, intus vix I lata. 



