14. pERopIcTICUS. 93 
13. LORIS. 
Tail none. COutting-teeth 4, upper small, nearly equal. Nose 
elongate, very acute. Body slender. Limbs very long. . Thigh 
elongate, nearly half as long as the body. Tarsus moderate. Eyes 
large, close together. 
Prosimia, Cuv. § Geoff. 1798. Loris, Geoff. 1796; Gray, P. Z. &. 
1863, p. 150. Stenops, part., Iliger.  Arachnocebus, Lesson, 
1840. 
Loris gracilis. B.M. 
Fur of back rufous, sooty-grey varied ; cheeks and beneath ashy 
white ; spot between the eyes and in front of the ears white. 
Loris gracilis, Geoff. ; Audeb. M. f.2; Blainv. Ostéogr. t.7.£.5. Lemur 
fac gradi, Linn. Mus. A. ; Schreb. t. 38, L. lori, Zimm. L. cey- 
lonicus, Fischer, Makis, t. 7,8,9& 18. Loris, Buffon, H. N. xiii. 
t. 80, 82; Shaw, Zool. i. t. 81; Seba, i. t.85.f.1,2; Hoeven, Tijds. 
it. f 4, skull; Knight, M. A. N. £. 208, 204. Stenops gracilis, 
Voigt. Arachnocebus, Lesson. 
Hab, Ceylon; India: Pondicherry. 
Tribe VI. PERODICTICINA. 
The fore and hind legs nearly equalin length. Face short, broad. 
The hand broad. The index finger abortive, clawless. Eyes 
moderate. 
14. PERODICTICUS, Bennett. * 
Tail shorter than the body. The hands and feet large. Fingers 
and toes free at the ends; the index finger rudimentary, but dis- 
tinct. Lower cutting-teeth large, prominent, and projecting.. The 
apices of the vertebre of the back, neck, and withers projecting 
beyond the skin, like prickles. 
Perodicticus, Bennett, P. Z. S. 1830, p. 109. Gray, P. Z. 8. 1863, 
p. 150. Potto, Lesson. 
Perodicticus potto. B.M. 
Very slow ; sleeps by day, rolled in a ball, with the head between 
the fore legs and folded into the chest, holding on by the fore and 
hind legs to the edge of the cage. Lively by night. Hand with 
only a very short rudimentary index, the ring finger rather the 
longest ; foot similar, but with a regular index, armed with a 
long, arched, broad nail; nails thin, oblong, transverse, rounded at the 
end like the human; nose deeply nicked in the centre, with rather 
elongate semilunar nostrils on each side, rather higher than the tip 
of the nose, naked, flesh-coloured ; upper part of nose rather naked; 
eyes large, very convex, pupil oblong, rather oblique; the four ver- 
tebree between the fronts of the bladebones produced beyond the skin, 
