14 DIPLOMMATINA $. 1. 
15. D. Austeni Blanford. 1 
».lesta 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, ultümi laevigati vel costulis sub- 
obsoletis signati, antepenulümus 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. 1l'!/, mill. Apert. cum perist. 
1 mill. longa, intus ?/ lata.* (Bl.) 
Diplommatina Austeni. W. T. Blanf. Contrib. to Ind. Malac. IX. 1868. p. 
5. 1.. 8. f. 2. 
Habitat in montibus Khasi (W. Theobald et H. Godwin- 
Austen). 
16. D. oligopleuris Blanford. 1 
».lesta 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 parietah mediocri. — Long. 2, diam. vix 
1!/, mill. Apert. cum perist. ?/, mill. longa.* (Bl.) 
Diplommatina. oligopleuris W. T. BBlanf. Contrib. to Ind. Malac. IX. 1868. 
poutres 
— — Theob. &'^ Stol. in Journ. As. Soc. XLI. 1872. 
Pt. 9. p. 330. 
Habitat Teria Ghát ad latus meridionale montium Khasi 
(Godwin-Austen) Kumah hill Arakan. 
17. D. concinna H. Adams. 1 
D. testa dextrorsa, non rimata, ovato-fusiformi, tenui, 
costulis tenuibus, distantibus sculpta, palhde 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, 
