MOLLUSCA OF INDIA, 7 
by Gude in Fauna B. India, vol. ii. p. 414). In a paper by them in 
the Journal of the Asiatic Society of Bengal (vol. xli. 1872, p. 341) 
they say: “somewhat larger than the Sikhimtype shell.” This 
record is of little value, when one considers how cursorily some 
shells, particularly of Glessula, have been looked: at and how little 
time is often bestowed upon them. Nevill in his Hand-list, 
p. 169, only gives the Darjiling locality. Theobald, it would appear, 
never gave specimens to the Calcutta Museum, and it is impossible 
to say where these shells of his went to. 
In W. T. Blanford’s collection is a single typical specimen 
(No. 880.06.1.1), and on a label in Hanley’s handwriting a note 
“Identical with the large one figured in the Conch. Indica” 
(Plate XVIII. fig. 4). Two specimens were in the Henry Blaniord 
collection which may be considered also typical, as the two brothers 
were constantly exchanging specimens. 
I find Glessula hastula, Bs., does not extend to the Garo and 
Khasi Hill ranges, its place being taken by a shel] at first sight very 
similar to it, but which on close examination is found to differ 
sufficiently to describe, making it all the more improbable that 
G. hastulu extends to Arakan. G‘. hastula of Darjiling is more 
attenuate with more costulate sculpture than in the Khasi form. 
Apex enlarged of (880.06.1.1 B.M.) Plate CLXIII. figs. ¥, 9a, 
Darjiling, and of (597 B.M.) fig. 10, Richila. 
It may be noted that the apex of the last differs very much from 
that of a typical hastula, a good character and sufficient to create 
a species which I name after Mr. W. Robert, late of the Indian 
Survey, who made for me such a splendid collection when he was 
working in Sikhim. There are only two specimens and one 
other from Rissom Peak (No. 2483 B.M.). It is very possible 
other examples will be found among my spirit-specimens. 
GrussuLA (RisHETIA) ROBERTI, 0. sp. 
Locality. Richila Peak, Western Bhutan (No. 557 B.M.)—Type. 
Rissom Peak, Sikhim (No. 2483 B.M.) (W. Robert). 
Shell subulately turreted ; sculpture: very regular, close well- 
raised striation, commencing on apex (Plate CLXIII. fig. 10) ; 
colour chestnut-brown ; spire elongate, side flattened, apex blunt, 
rounded; suture slightly impressed; whorls 84, very regularly 
increasing, sides flatly convex; aperture small, ovate; columellar 
margin concave. 
Size: maj. diam. 3°5; alt. axis 11 mm. 
GLESSULA RARHIENSIS, n. sp. (Plate CLXII. fig. 23.) 
Locality. Rarhichu Valley, Sikhim (10 specimens) (No. 3335 
B.M.) (W. Robert). 
Shell elongately conical, shiny; sculpture: distant irregular 
strie ; colour dark umber-brown ; spire high, sides flattish, apex 
blunt ; suture impressed; whorls 8, flatly convex, rather regular 
PART I. c 
