455 



V. Martens. Ostas. Landschn. p. 204, 206, (rarcgittlata var. ?). 

 Tryon/Pilsbry. Man. of Conch. 2J .Series, Vol. II, p. 69, [rareguttata var. ?). 



Stat. 296. Near Noimini, South coast of Timor and in the river-bed. 4 Spec. 



One young specimen has been taken alive, 3 specimens from the river-bed are dead, 

 bleached shells, of which i or 2 full-grown. As the specimens agree with my strenger sculp- 

 tured ones, from more than one locah'ty, I have kept them separate from Nanina rareguttata 



MOUSSON. 



2. Heniiplecta kangeangensis n. sp. PI. XXXI, fig. i. 



Stat. i6. Bay of Kankamaraan, South coast of Kangeang. 2 Spec. 



Shell depressedly-conoid, umbilicated, carinated, horn-coloured, with a whitish keel, 

 accompanied by a narrow red-brown zone or line. VVhorls 4Y3, slightly convex. Nuclear whorls 

 with very fine, radial striae or riblets, becoming stronger on subsequent whorls, where they 

 are more like curved ribs, the ribs being crossed by spiral striae, interstices smooth; near 

 aperture these striae are again fainter, on the 3*^ and subsequent whorls, the keel is per- 

 ceptible as a slightly depressed, white zone, just above the shallow suture; last whorl moderately 

 depressed, angular by the prominent keel, its basal surface convex, much smoother, shining, 

 of a lighter colour, slightly darker round the pervious umbiHcus; aperture depressedly ovate, 

 scarcely angular by the keel, moderately oblique, its upper and basal margins regularly convex; 

 peristome slightly thickened, more so at its insertion near the umbilicus, where it is dilated 

 and partly covers the umbilicus. 



Diam. maj. 26, alt. 15Y3; apert. alt. 9, diagonally 10 ; lat. 13; umb. lat. 2 Mill. 



Of this species one specimen is adult but not intact, having a large hole in its spire 

 and the peristome is slightly broken at its upper part, the other specimen is not fullgrown, 

 however they are sufficiënt for description and comparison. The species may be distinguished 

 from its allies H. bataviana, arguta etc, by its regularly convex shape, by its smaller size, 

 scarcely perceptible umbilical darker spots and much finer sculpture, which is decidedly riblike 

 in the allied species. 



Fam. Helicidae. 



Chloritis Beek. 



I. Chloritis argillacea Ferussac. 



Ferrusac. Prodr. N" 38, Hist. Nat. Moll. PI. 26, fig. 1 — 3. 



Reeve. Conch. Ie. VoL VII, Helix, fig. 415. 



V. Martens. Ostas. Landschn. p. 273. 



Tryon/Pilsbry. Man. of Conch. 2d Series, Vol. III, p. 2to, PI. 48, fig. 78, 79. 



Stat. 296. Noimini, South coast of Timor. i Spec. 

 A very common species on Timor and some other islands. 



