1864.] AND DENTITION OF THE LEMURIDS. ~ 643 
- Characters.—Tail shorter than the body; no upper incisors ; 
upper molars with three large tubercles, as in Mierocebus ; anterior 
part of each lower grinder produced forwards outside the posterior 
part of the tooth next in front; palate not prolonged beyond the last 
molar; posterior palatine foramina inconspicuous. 
LEPILEMUR MUSTELINUS. 
Type of the species in the Paris Museum. 
The cranial and tarsal structure of this form and the position of 
the gall-bladder are quite unknown to me. 
Subfamily 3. NycricEBinz, 
Characters.—I. “. C. =: P.M. —. M. se Fore and 
hind limbs subequal in length; tail short (always shorter than half 
the length of the body), rudimentary, or absent ; tarsus short ; third 
upper premolar with only one large external cusp, and considerably 
smaller than the first upper molar; an oblique ridge to the upper 
molars; first upper premolar more or less exceeding the second in 
vertical extent ; mastoidal region of periotic inflated; one opening 
representing both the sphenoidal fissure and the foramen rotundum ; 
carotid foramen conspicuous; dorsal vertebra always fourteen or 
more ; lumbar vertebrze always seven or more; gall-bladder with its 
fundus not turned towards the back. 
Hab. Africa and Asia (not Madagascar). 
Genus 1. Nycricresus, Geoff. St.-Hil. (1812). 
Nycticebus, Geoff. St.-Hil. Tabl. des Quad. (1812); Desm. 
Mamm. (1820) p. 102; Fischer, Syn. p. 70; Isid. G. St.-Hil. Cat. 
des Prim. p. 78; Dahlb. Studia Zool. p. 208; Gray, P. Z. 8. 1863, 
p. 149. 
Stenops, Van der Hoeven, Tijdsch. p. 39; Illiger, Prodr. p. 73 ; 
Wagner, Schreber, Suppl. i. p. 279, v. p. 150. 
Loris, Fischer, Anat. der Maki, p. 30. 
Bradicebus, Cuvier et Geoff. St.-Hil. Mém. sur la Cl. des Mamm. 
1795). 
¢ Bradylemur, De Blainv. Ostéogr. Lemur (1840) p. 12; Lesson, 
Species (1840) p. 239. 
Characters.—Body and limbs stout ; index finger short ; tail ab- 
sent; upper incisors large and unequal ; first upper premolar very 
long ; last upper molar tricuspid ; palate not produced ; preemaxillz 
not projecting much forwards ; dorsal vertebrze sixteen ; lumbar ver- 
tebrze seven or eight. 
Hab. Borneo ; Sumatra; Java. 
Genus 2. Loris, Geoff. St.-Hil. (1796). 
Loris, Geoff. St.-Hil. Mém. sur les Makis (1796) ; Desm. Mamm. 
(1820) p. 101; Fischer, Anat. der Maki, p. 26; Isid. Geoff. St.-Hil. 
