74 
DIPLOMMATINA §. 1. 
15. D. Austeni Blanford. t 
„ Testa dextrorsa, non rimata, conico - ovata , albida vel 
succinea. Spira superne conica, non attenuata, sutura impressa, 
apice obtusiusculo. Anfr. 6, primi 3 gradatim crescentes, 
confertim minute costulati, ultimi laevigati vel costulis sub- 
obsoletis signati, antepenultimus major, ultimus aliquando 
lineis subdistantibus versus aperturam signatus, antice ascen- 
dens , subtus rotundatus. Apertura verticalis , oblique sub- 
ovalis; perist. incrassatum, mediocriter expansum, duplex, 
margine columellari verticali, angulo aperto subtus desinente, 
basali rotundato, plica columellari mediocri, callo parietali 
expanso. — Long. 2^, diam. l*/ 6 mill. Apert, cum perist. 
1 mill, longa, intus 2 / 3 lata.“ (Bl.) 
Diplommatina Austeni W. T. Blanf. Contrib. to Ind. Malac. IX. 1868. p. 
5. t. 3. f. 2. 
Habitat in montibus Khasi (W. Theobald et H. Godwin- 
Austen). 
i6. D. oligopleuris Blanford. t 
„Testa dextrorsa, non rimata, conico-ovata, costis distan- 
tibus obliquis ornata, fulvescenti- albida. Spira conica, apice 
obtuso, sutura impressa. Anfr. 6, rotundati, antepenultimus 
major, tumidiusculus, ultimus antice ascendens, subtus rotun- 
datus. Apertura verticalis, late auricularis, plica columellari 
valida munita; perist. rectum, duplex, internum antice porrec- 
tum, expansulum, externum late expansum, margine columel- 
lari verticali, callo parietali mediocri. — Long. 2, diam. vix 
1^4 mill. Apert, cum perist. 3 / 4 mill. longa.“ (Bl.) 
Diplommatina oligopleuris W. T. Blanf. Contrib. to Ind. Malac. IX. 1868. 
p. 6. t. 3. f. 4. 
— — Theob. fy Stol. in Journ. As. Soc. XLI. 1872. 
Pt. 2. p. 330. 
Habitat Teria Ghat ad latus meridionale montium Khasi 
(Godwin-Austen), Kumah hill Arakan. 
i7. D. concinna H. Adams, f 
„D. testa dextrorsa, non rimata, ovato - fusiformi , tenui, 
costulis tenuibus , distantibus sculpta , pallide cornea ; spira 
subconica, apice obtuso, sutura impressa; anfr. 6, convexis, 
antepenultimo paulum tumidiore, ultimo ascendente; apertura 
subverticali, rotundo-lunari, plica columellari valida, conspicua; 
perist. duplici, interno vix elevato, externo expanso, subreflexo, 
