1865. ] DR. J. E. GRAY ON THE MUSTELIDA. 123 
Tribe 2. Lurrrna. Head depressed. Feet normal, subdigiti- 
grade; toes webbed. ‘Tail thick, tapering, depressed. Teeth 
normal; flesh-tooth acutely tubercular; tubercular grinders 
oblong, large. The nose convex and hairy beneath, without 
any central bald longitudinal groove. Aquatic. 
Lutrina, Gray, Ann. Phil. 1825. 
Lutrina, Baird, M. N. A. 183. 
The first upper false grinder is small, subcylindrical, placed on 
the inner side of the canine tooth; it is often lost early ; it is 
sometimes to be seen on one side, and not on the other ; it is nor- 
mally present in all the species, when perfect. The flesh-tooth of 
the Otters presents two very distinct forms: in some the inner lobe 
is moderate, its length only equalling about two-thirds of the outer 
part of the tooth; in others it is much larger, equal to the whole 
length of the outer portion of the tooth. The absolute size of the 
tooth seems to vary in the different species, and also in the different 
specimens of the same species, as is also the case with the upper 
tubercular grinder. 
A. Tail simple, conical, depressed. 
a. The palms and soles of the feet bald between the pads; the palm- 
pads without any small circular warts on their hinder edges. 
* Muzzle entirely covered with hair ; the upper margin. of the 
nostrils only bald. 
9. BaRANGIA. 
The nose entirely covered with hair; the narrow upper edge of 
the- nostril only bare; ears short, rounded, hairy. Toes 5/5, 
rather elongate, broadly webbed, well covered with hair above ; 
claws distinct, exposed, and blunt at the end. Palms and soles 
bald; the pads of the toes small, the central pads scarcely sepa- 
rated; the wrist-pad large and oblong. Tail conical, depressed, 
covered with hair. Skull elongate; orbit very imperfect, only de- 
fined by a slight prominence on the upper and lower edges; nasal 
and maxillary bones produced to a line even with the middle of the 
orbit ; intermaxillary very slender. The flesh-tooth acutely tuber- 
cular, with the internal lobes on the front part of the inner edge, 
rounded, slightly more than half the length of the outer edge of the 
tooth. Tubercuiar grinder much broader than long. 
1. BARANGIA SUMATRANA. B.M. 
Chestnut-brown, scarcely paler below ; upper lip, chin, and upper 
part of the throat pale yellow. 
Lutra barang, F. Cuvier, Dict. 8. Nat. xxvii. 246; Gerrard, Cat. 
Bones B. M. 101. 
Barang, Raffles, Linn. Trans. xiii. 254. 
Hab. Sumatra (Raffles) ; Malacca (B.M.). 
Known from Lutra leptonyx (Horsfield) by the hairy nose, the 
