MOLLUSCA OF INDIA. 219 
lateral areas, and is distinctly segmented, the major divisions on the 
pallial edge of the foot being continued in V-shape from one side to 
the other, the angle being directed backwards in the spirit-specimen ; 
but they are no doubt straight when the animal is alive. 
These mollusks are abundant during the rainy season in Assam 
and other parts of the adjacent country, but in the cold weather are 
very difficult to find, and then only under stones and logs in damp, 
low situations. Some may be found on rocks and on the boles of 
trees in the forest. One species, G. croceus, I found crawling over 
the tall grasses 12 feet from the ground; and I should not have 
seen it, only that I was hunting for some butterflies at the time 
which were flying about high over the jungle. 
GIRASIA HooOKERI, Gray. (Plate LV. figs. 1, 1 a, 16, animal; 2, 
2a, 26, shell; and Plate LXII. figs. 1, 1 a.) 
Girasia hookeri, J. K. Gray, Cat. Pulm. Brit. Mus. p. 61 (March 
1855); Godwin-Austen, P. Z. 8. 1880, pp. 291, 292, 294, pl. 
Xxvil. figs, 2, 3, 4. 
Hoplites theobaldi, G.-Austen, P. Z. 8. 1872, p. 517. 
Original description :— Shell oblong, elongate, slender, arched 
concentrically, very thin, horny, wrinkled; thicker, but equally 
horny, in the upper part of the centre ; the apex thick, white, solid, 
suboblong, elongate ear-shaped, with a lateral submarginal spire of 
half a whorl. 
‘‘ Hab, India, Khasya (Dr. Joseph Hooker).” 
The living animal is of a pale yellowish dull grey, under surface 
of foot pale ight yellow. The mantle-lobes completely cover the 
shell; a whitish stripe extends from the posterior side forward 
along the edge of the left lobe; and a like narrow stripe from the 
hinder part of the mantle is continued to the respiratory orifice on 
the right side. The animal is in all points of structure similar to 
H. croceus, but larger by 3 an inch; the shell is very rudimental, 
major diam. 0°56, minor very narrow; the apex is well developed 
and more calcareous, the rest of the shell being a mere thin horny 
epidermis of a pale green colour. 
This specimen was from Masjerri, N.W. Khasi Hills. Another 
is described in my notebook as follows :— 
Length 3:3 inches, of a pale brown colour. Tentacles 0-2 inch in 
length, the shell-lobes almost entirely covering the shell. The 
centre of exposed shell is situated 0-7 inch from the head. There 
is a strongly marked line from the posterior shell-margin down the 
ridge of the foot, and seen best when this is extended. 
The largest specimens seen were 3:9 and 4:2 inches long. 
Hab. Moyong, N.W. Khasi Hills. 
The radula (Plate LXII. fig. 1) has a greater number of teeth in 
a row than is seen in Macrochlamys, 
Dotres peur OP pelt ta LOn sy 2 ol Oo 
ADS eles Ione oa 3) 
