244 LAND AND FRESHWATER 
Genus AFRICARION (continued from p. 154, Part IV.). 
AFRICARION ATER, n. sp. (Plate LVII. figs. 1, la, 16, le, 
animal ; figs. 2, 2 a, 2 6, shell.) 
Locality. Travancore and Tinevelly Hills (Col. R. Beddome). 
Animal. About 50 mm. or 1-9 inch in length, when living, the 
hinder part of the foot apparently long and narrow, with a small 
linear mucous pore overhung by a small lobe, the pallial line and 
margin very narrow. The rounded dorsal surface of the posterior 
portion of the foot is divided at its anterior end into two well- 
developed lappets forming a deep V-shaped depression, and in this 
the shell is sunk, and the two lappets envelope on both sides the 
dorsal lobes. The right shell-lobe is small, obtusely angulate, 
extending towards the apex, and continuous round to the left pos- 
terior margin, gradually narrowing ; neither extend to the posterior 
margin. ‘The night dorsal lobe is very small, extending from the 
respiratory orifice to the posterior right margin, ‘The left is ample 
in front, but contracts in breadth gradually up to the left posterior 
margin, where it becomes a mere thread in size, and passes round 
behind to join the right dorsal lobe, just on the margin of the 
very thin membranaccous extension of the shell. The foot has a 
central and marginal area, divided into three equal parts, the edge 
being segmented *, 
The shell is flat above, dextral, broadly ovate, smooth, shiny, colour 
green, white at the apex and within the shell ; whorls about 13; the 
edge of the expanded aperture is very thin; attached to and continuous 
with the flat more shelly portion is a curtain-like membrane which 
falls over and covers the posterior part of the body of the animal. 
Jt is exceedingly difficult to remove the harder shelly portion with- 
out breaking away this portion of it, but I show it in figs. 4, 4 a. 
Major diam. 12°5, minor diam. 7-0 mm. 
Odontophore. The radula has the centrals and laterals on both 
sides nearly equal in number; the centrals are elongate tricuspid 
tecth ; the laterals rather small and bicuspid, as in the African 
species figured Plate XLII. fig. 6. 
The formula is 
DAs Nee BOA NO 1924 
44.1. 44 
The jaw (Plate LVII. fig. 3c) is dark coloured, with a central 
projection. 
The generative organs (Plate LVII. figs. 5, 5a) are simple, with 
* On removing the shell it is seen that this mollusk has at the apex the 
dextral coil ina much more pronounced degree than is usual in the slug-like 
forms; the small hooked process of the liver-lobes which fills the apex of the 
shell is not so developed in Girasia, &e., or even in the African species I have 
previously described. Although very distinctive, I have not considered it of 
sufficient importance to separate it generically from this last. It indicates 
relationship to some form possessing a more developed spiral shell. 
