184 LAND AND FRESHWATER 
DrpLtommatina ANGuLATA, Theobald & Stoliczka. (Plate XLIX. 
fies. 5, 5 a.) 
Locality. Damotha, Moulmain. 
Diplommatina angulata, Theobald & Stoliczka, Journ. A. S. B. 
1872, p. 331, pl. xi. fig. 3 (Chouktalon Hill, south of Moulmain) ; 
Hanley, Conch. Ind. p. 55, pl. exl. fig. 7 (not a characteristic 
drawing). 
Palaina angulata, Theob. Supp. Cat. p. 43; Nevill, Hand-list, 
p. 285. 
Original description :—‘* D. testa ovato-elongata, dextrorsa via ri- 
mata, sordide albida, anfractu penultimo latissimo, apice obtusiusculo, 
pallide rubido, submamillato ; anfratibus sew, primis duobus levigatis, 
ceteris valde convexris, ad peripheriam plus minusve distincter angu- 
latis, transversim confertissime costellatis aut acute striatis ; ultimo 
basi contracto ; sutura profunda, simplice ; apertura late circulari ; 
peristomate undique expanso, bilabiato, interno subrecto, ad marginem 
columellarem dente obliquo instructo, externo ad anfractum penuliimum 
constrictum modice ascendentc. Long. 2, Jat. maximus 0:8, diam. 
apert. 0°6 mm. 
“Hab. prope Moulmain, provincia Martaban.” 
“ The peculiar angulation of the whorls, combined with the very 
close transverse costulation, or almost striation, and the proportion- 
ately large aperture, readily separate this species from any other as 
yet known. Mr. Theobald obtained numerous specimens on the 
limestone hill near Damotha, and also south of Moulmain, together 
with D. carneola, Stol.” 
DIPLOMMATINA EXSERTA, u. sp., Nevill. (Plate XLIX. figs. 2, 2a.) 
Diplommatina exserta, Nevill’s Hand-list, p. 284, as D. ewilis, var. 
exserta, from Farm Caves, Moulmain. 
Locality. Damotha Cave, Moulmain (Theobald). Four specimens. 
Shell elongately fusiform, not rimate ; sculpture, minute spiral 
striw, crossed by rather close transverse costulation, coarser and more 
distant on the apical whorls, less apparent on the last; colour very 
light sienna ; spire high, turreted, sides flat, apex small; whorls 8, 
sides rounded, the antepenultimate the largest, the last ascending,con- 
striction just behind the aperture ; aperture vertical, oval; peristome 
closely double at base at right angles to the axis ; columellar margin 
subvertical, the tooth not at all prominent, blunt and rounded. 
Size: major diam. 1:0, alt. axis 3 mm. 
3 0:04, ~ ,, - 2 OrL2 aneh.- 
This shell is very like D. evilis, the constriction, however, is 
much more defined; there is no spiral striation on the surface of 
D. exilis, and there is great difference in the form and size of the 
columellar tooth. Its abnormal form serves to characterize D. exserta 
well, and it may be compared in this respect to D. nicobarica. 
In the paper ‘“ Notes on Burmese and Arakanese Land-Shells,” by 
W. Theobald, Esq., and Dr. F, Stoliczka (J. A. 8. B. 1872, p. 331), 
