HABITAT.—Nepal, Sumatra, and Borneo.
DESCRIPTION.—"The colour is more rufous umber-brown than L. nair, and does not exhibit any tendency to grizzling, and the under surface is only somewhat hoary, well washed with brownish; the chin and edge of the lips are whitish; and the silvery hoary on the sides of the head, on the throat, and on the under surface of the neck and of the chest is marked; the tail above and below is concolorous with the trunk. The length of the skeleton of an adult female, measured from the tip of the premaxillaries to the end of the sacral vertebræ, is 23·25, and the tail measures 17·75 inches" (Anderson). Of the Sumatran specimen the first notice was published in 1785 in the first edition of Marsden's 'History of Sumatra.' This otter is larger than the common Indian one, the skull of a female, as given by Dr. Anderson, exceeding in all points that of male of Lutra nair.
Jerdon has this as Lutra vulgaris, which is the common English otter, but there is a difference in the skull.
HABITAT.—Southern Mahratta country.
DESCRIPTION.—The colouring is the same as the last, only a little darker; the distribution of the silvery white is the same; the muzzle is however more depressed than in the last species, and it differs from L. nair by a broader, more arched head, and shorter muzzle.
Dr. Anderson, who distinguishes it by the feature of its skull from the two preceding species, says: "It may be that this otter has a north-westerly distribution, and that it is the species which occurs in the lake at Mount Abu in Rajputana, and also in Sindh and in the Indus."
HABITAT.—Nepal.
DESCRIPTION.—Fur of a rich ferruginous brown colour, the upper surface of the head being a deeper brown than the back; the nose is bare; the ears are small and pointed posteriorily. All the strong bristles of the moustache, eyes, cheeks, and chin, are dark brown; claws as in Lutra (Anderson). Hodgson says it has a more vermiform body than the rest of Indian otters; tail less than two thirds of the body; nails and toes feebly developed (whence it is classed by Gray in the next genus); fur long and rough, rich chestnut-brown above, golden red below and on the extremities.