560 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXIII. 



LUTRA LOVII Gunther. 



1876. Lutra lovii Gunther, Proc. Zool. Sou. London, p. 736. (Type-locality, 



Borneo, opposite island of Labuan.) 

 1905. Lutra lovii, Willink, Natuurkundig Tijdschrift Nederlandsch Indie, 



LXV, p. 222. 



Two small hairy-nosed otters may be referred to this species, which 

 is almost an exact miniature of the large Lutra harang of the Malay 

 region. The color of Lutra loirii is generally darker throughout, 

 both above and below. The light area on the throat is more restricted 

 and more contrasted with the general dark color of the animal. The 

 tail is relatively nuich larger than it is in the T^utra harang and con- 

 siderably longer (about 4 inches =100 mm.) than the published 

 measurements (11 inches) of Lutra Imm. The skull of Lutra lovii 

 has about the same general size as that of the clawless otter, Aonyx 



A. Last two maxillary teeth (kkjht side) of Lutra barang, adult female, Cat. No. 104437, 

 U.S.N.M., PuLo Lankawi, x \\. B. Last two maxillary teeth of Lutra lovii, adult 

 female, Cat. No. 142337, U.S.N.M., Pulo Saparo, in Kapuas River, western Borneo, x li. 



cinerea, but in shape and in relative proportions it is almost an 

 exact counterpart of that of Lutra harang. In addition to the dif- 

 ferences in size between the skulls of Lutra lovii and L. harang may 

 be mentioned the enlarged bullae of the smaller species, the dis- 

 tinctly smaller foramina along the inner side of the bullae and the 

 reduction of the inner segment of the upper carnassial tooth. 



The marked differences between the carnassial teeth of the small 

 Lutra lovii and the large L. harang are well sho\\Ti in the figure 

 above, and require no detailed description. They may indicate 

 more than a specific difference. 



The two adult females collected by Doctor Abbott measure as 

 follows: Cat. No. 142336, U.S.N.M. (near Pontianak), and No. 

 142337, U.S.N.M. (Pulo Saparo) ; head and body, 615, 575 (585) « mm; 

 tail, 385, 375 (280); hind foot with claws, 107, 103; greatest length 

 of skull, 101, 100.2; basal length, 94.3, 91.4; upper length, 85, 83.7 



o See foot note on page 561, 



