supposed new Species of Land-Mollusk. 435 
in the ‘ Proceedings of the Zoological Society of London’ 
(March 1895, p. 241) on some species from Kina Balu Mountain 
and Sarawak, in Borneo itself. The animal being very 
similar in outward appearance, it was a surprise to me to 
find it, on closer examination, to differ considerably from 
those we had described. I have great pleasure in naming it 
after its discoverer, who has proved himself to be a most 
indefatigable collector, not only of land-mollusca, but more 
particularly of the Lepidoptera, on which he has written 
several papers very valuable as regards geographical distri- 
bution. Among the land-shells he has placed in my hands 
are Many very interesting species. 
Parmarton Doherty?, sp. n. 
Hab. Pulo Laut Island. 
Animal (Pl. XIX. figs. 1 and 2).—Length of the largest 
specimen 20 millim., visceral mass about 6 millim.; length 
of the smallest 15 millim.* The mucous gland and the extre- 
mity of the foot is similar to the species from Borneo, placed 
in Microparmarion ; but the shell is more globose, and the 
round, solid, spiral, visceral mass shows this even after the 
shell is detached. ‘The thicker portion of the shell (fig.3, x 4) 
is oval above, flat, thin, becoming a transparent membrane on 
the posterior and lower portions; its colour is a faint ochra- 
ceous tint. It has about 14 whorls, and the apex being 
rather closely wound, it is impossible to extract the animal 
without breaking away a large part of the membranaceous 
interior portion. This is shown in fig. 4 (a view of the lower 
side), where a portion is still intact, while it was once con- 
tinuous over all anteriorly. 
The largest shell measures in major diameter 8:0 millim., 
minor diameter 5°5 millim. 
The specimens I have to describe from, having been 
plunged too suddenly into strong spirit, are very much con- 
tracted and hardened ; the eye-tentacles are protruding and 
the anterior portion of the mantle is rolled up, the edges 
being turned in underneath, so that it is not altogether clear 
what the form of the shell-lobes might have been when alive 
and what the portion near the respiratory orifice was like. I 
have drawn the largest exactly as it is preserved. 
The mantle is very closely and distinctly papillate, as 1s 
also the posterior side of the foot; this is sharply keeled 
above. ‘The sole of the foot has a central area, ‘The ten- 
tacles are apparently long and dark-coloured. The pallial 
margin of the foot is not so distinctly marked off from the 
