174 Proceedings of the Royal Physical Society, 
The animal belongs to the Family of the Lemurs, Lemurina 
s. Prosimii, and to the first division of the family which is 
distinguished by Van der Hoeven in his valuable " Handbook 
of Zoology" (translated by the Hev. W. Clark, M.D., London, 
1858), as follows:— 
Phalanx 1. Nail of the Index alone of the soles incurved, 
subulate. Upper incisor teeth four, in pairs. 
A. With tarsus not elongate. 
Under this great subdivision, it belongs to the 
Genus Stenops, Illig. (genera Loris and Nycticehus, 
Geoff.) 
Incisor teeth j, canines j — j, molars g — g. Ears short, 
rounded. Eyes large, approximate. Index of hand short, 
not longer than poUex. Tail short, or none. 
Van der Hoeven subdivides the Genus Stenops into the 
three following sections : — 
(a) Tail short. Index of hand very short, resembling an 
unarmed tubercle. (Perodicticus, Bennett.) 
(Sp.) Stenops potto. Lemur potto, Gm., Nycticebus potto, 
Geoffr., Perodicticus Geoffroyi, Benn. Gold Coast of 
Guinea. Potto^ Bosman. 
(5) Tail very short {Nycticebus, Geoffr). 
(Sp.) Stenops tardigradus, Anct., Lemur tardigradus,li. 
Bengal, Siam, Sumatra, Borneo. Stenops javanicus, 
nob., Nycticebus javanicus, Geoffr. 
(c) Tail, none {Loris, Geoffr. Body slender; eyes very 
large, almost contiguous. Nose acute, sub-ascending). 
(Sp.) Stenops gracilis, Loris gracilis, Geoffr., Lemur 
tardigradus, L. Ceylon. 
The animal, now exhibited, belongs apparently to the first of 
these subdivisions (a.) ; although, with reference to the first 
character of this subdivision — that taken from the length of 
the tail — it agrees better with, and would therefore seem more 
naturally to come under, the second subdivision (b); the dis- 
tinguishing and peculiar characteristic, however, of the sub- 
division {a) seems to be the undeveloped index finger, and with 
this my specimen exactly corresponds. The length of the tail 
would appear, therefore, to be rather doubtful as a distinctive 
