18 DIPLOMMATINA $. 1. 
distincta, in anfractu ultimo distantior; spira conoidea, apice 
obtusa; sutura profunde impressa; anfr. 5, lateribus percon- 
vexis, antepenultüimus maximus et tumidus, ultimus in pen- 
ultimum fere ad suturam ascendens, latitudinem hujus valde 
contrahens; apertura verticalis, late auriculata; perist. solidum, 
duplex, externum crassum, validum, interruptum; internum 
continuum, sursum latere sinistro in callum parietalem late 
appressum expansum; dens columellaris magnus crassusque; 
basis prominens, descendens. — Altit. 1!/;, diam. ?/,, diam. 
apert. 1/, mill.* (A. angl.) 
Diplommatina depressa. Godwin- Aust. in Journ. As. Soc. XXXIX. 1870. 
DIUI pa 
Habitat ,Jaintia Hills* montium Khasia. 
38. D. angulata Theobald & Stoliczka. 7 
,D. testa ovato-elongata, dextrorsa, vix rimata, sordide 
alba, anfractu penultimo latissimo, apice obtusiusculo, pallide 
rubido, submammillato; anfractibus 6, primis duobus laevigatis, 
caeteris valde convexis, ad peripheriam plus minusve distincte 
angulatis, transversim confertissime costellatis aut acute striatis; 
ultimo basi contracto; sutura profunda, simplice; apertura late 
circulari, peristomate undique expanso, bilabiato, interno sub- 
recto, ad marginem columellarem dente obliquo instructo, ex- 
terno ad. anfractum  penultimum constrictum modice ascen- 
dente. — Long. 2, lat. maxima 0,8, diam. apert. 0,6 mill.* 
(Th. & St.) 
Diplommatina angulata Teob. $/ Stol. in Journ. As. Soc. Beng. XLI. 
18795 Pt. 9. p. 3313 t 115 7$- 9: 
Habitat prope Moulmain, provincia Martaban. 
29. D. Richthofeni Theobald & Stoliczka. 1 
»Dipl. testa ovate elongata, turrita, dextrorsa, albida, ri- 
mata; spira conoidea; anfractibus 7, convexis, ad medium sub- 
angulatis, sutura simplici junctis, penultimo ultimo latiore: 
primis duobus apicem formantibus laevigatis, caeteris trans- 
versim conferte costellatis, ultimo basi convexo, angustato, 
supra ad anfr. penultimum ascendente; apertura parva, circu- 
lari, peristomate duplici: interno tubuliforme modice producto 
atque dilatato; labio ad basin dente obliquo et magno in- 
structo. — Long. 2,5, lat. max. 0,8, diam. apert. 0,5 mill.* 
(Th. & St.) 
