76 
176 LAND AND FRESHWATER 
Dretommatina Minima, Beddome. (Pl. XLIX. figs. 13, 13 a.) 
Diplommatina minima, Beddome, P.Z.8. 1875, p. 442, pl. li. 
figs. 3,4; Hanley, Conch. Ind. p. xii (in list of species only) ; 
Nevill, Hand-list, p. 288. 
The specimen figured is 1°4 mm. in height. 
Original description :—‘ ‘Shell dextral, cylindrical, straw-coloured, 
not rimate; whorls 53, convex, all except the two upper ones 
minutely costulated, sutures deep; spire black and tapering very 
slightly, the antepenultimate whorl not larger than the penultimate, 
the latter very slightly constricted ; the position of the operculum 
over the centre of the aperture, aperture circular ; peristome shining, 
continuous round the lower portion of the penultimate whorl, double 
in its lower free portion, the columellar margin semicircular, the 
tooth small but plainly visible under the lens: total length ;4, inch, 
23 times the breadth. 
“Gudam Hills, Vizagapatam, with the preceding (D. gracilis), 
but very rare. This is the smallest known species of Diplom- 
matina true ; it is quite a connecting-link between Semper’s genus 
Moussonia (Pupa problematica, Mousson) and true Diplommatina. 
“These are the first species of Hudiplommatina discovered in 
Southern India ; the genus does not apparently occur on our western 
ghats south of 14° N. lat., where its place is taken by Micida. 
Large tracts of the mountainous country in the Vizagapatam and 
Ganjam districts are conchologically quite unexplored ; and other 
species will no doubt be some day discovered, particularly as Nicida 
is not found. On the Nallay-Mallay mountains, Kurnool district, 
15° N. lat., I could not detect either Diplommatina or Nicida, though 
Opisthostoma was discovered ; these hills, however, have been only 
superficially searched, and Diplommatinas will, I think, yet be found 
there.” 
Species from the Khasi and Naga-Hill Ranges. 
DrpLoMMATINA POLYPLEURIS, Bs. (Plate XLV. figs. 1, 1a.) From 
Khasi Hills ; the same as figured in ‘ Conch. Indica.’ 
Diplommatina polypleuris, Benson, A. M. N. H. 1857, vol. xix. 
p. 203; Blanford and Godwin-Austen, J. A. 8. B. 1868, p. 83, 
pl. iii. fig. 1 (from North Khasi). 
Diplommatina polypleuris, var., Godwin-Austen, J. A.S. B. 1870, 
p-. 4, pl. i. fig. 4 (from N. Jaintia, is distinct; I have named it 
minuta); Pfr. Mon. Pneum. vol. ii. p. 11; Hanley, Conch. Ind. 
p. 56, pl. exl. fig. 10 (Sandoway, habitat doubtful); Theob. Supp. 
Cat. p. 42, Moulmein, Nattoung (both doubtful). 
