MOLLUSCA OF INDIA. 39 
sharpness of their ornament. This species I cannot find now in 
Mr. Blanford’s collection. It was figured by Hanley, who only 
gives a view from behind.” 
Srrata TrIcaRmNaTa, W. T. & H.F. BIf. (Plate X. fig. 10, the 
type specimen also figured in the Conch. Indica.) 
Helix tricarinata, J. A. 8. B. 1861, p. 355, pl. i. f. 10; Pfr. Mon. 
Hel. vol. v. p. 91; Conch. Ind. p. 52, pl. xxix. fa Asehas 
Sitala tricarinata, Theob. Cat. Suppl. p. 20. 
Nanina (Microcystis)? tricarinata, Nev. Hand-list, p. 42 (2 sp. 
ex coll, Blf.). 
Original description :—‘‘ Testa aperte perforata depresso-turbinata, 
tenuis, pallide cornea, oblique striatula, subtus obsolete decussata ; 
spira conoidea, apice planulato, perobtuso, sutura impressa ; anfr. 4, 
convexi, superne carinis duobus filiformibus cincti ; ultimus tribus 
medianis, non descendens, subtus rotundatus ; apertura subverticalis, 
rotundato-lunaris ; peristoma rectum, acutun, marginibus distantibus, 
sinistro non reflexo. 
“Diam. 12, alt. 1 mm. 
“ Hab. prope Pykara ad summos montes Nilgiris.” 
Major diam. of specimen figured 1-4, alt, axis 1:0 mm. 
Sirrata suBprnrraTa, G.-A. (Nev. MS.), n. sp. (Plate X. 
figs. 11, 11 a.) 
Locality. Little Brother Andaman. 
Shell depressly conoid, rather openly perforate, covered with a 
strong epidermis ; sculpture, very fine longitudinal ribbing, well seen 
on base, crossed by irregular lines of growth; colour dull ochraceous 
brown; spire flatly conoid, apex flat; whorls 5, with a fine rib on 
the periphery of the last whorl, with a single intermediate one above 
it, sides flat from the suture to this, slightly convex above ; aperture 
ovate, subvertical ; peristome rather thickened ; columellar margin 
slightly oblique, not reflected. 
Size: major diam. 2°7 mm., alt. axis 13mm. 
* 0:07inch, ,, 0-05 inch. 
SITALA SUBBILIRATA, var. (Plate X. fig. 12.) 
Locality. Batte Malve. 
This shell was sent me by Mr. Geoffrey Nevill from the Indian 
Museum, Calcutta, as No. 206. Sagdinella didrichseni, Morch, with a 
note attached, “I doubt it being this species.” In this part, further 
on, I treat of this genus, which will clear up this uncertainty that 
surrounds Mérch’s genus; and I now find that this shell from Batte 
Malve agrees well with Nevill’s MS. subdilirata from Little Brother 
Andaman, only that the shell is not so well grown, and the apex 
is flatter, and I have therefore figured both. 
It measures: major diam. 2°3mm., alt. axis 13 mm. 
3 0:09 inch, ,, 9:05 inch. 
