1864. | AND DENTITION OF THE LEMURID&. 645 
Subfamily 4, GALaGINnINz&. 
2-2 = a : 
Characters.—I. =. C. a P.M. = M. —. Upper in- 
cisors subequal : first upper premolar longer than the second ; third 
upper premolar with two large external cusps, and about equalling 
the first molar in size ; upper molars with the oblique ridge ; postero- 
internal cusp of second and third molars well developed; hind limbs 
much longer than the fore; tarsus very long ; caleaneum more than 
one-third the length of the tibia; naviculare much longer than the 
cuboid ; ears very large ; tail longer than body ; mastoidal region of 
periotic inflated ; no interparietal; carotid foramen conspicuous in 
the basis cranii; one opening representing both foramen rotundum 
and sphenoidal fissure ; dorsal vertebrze thirteen ; lumbar vertebrze 
six; gall-bladder with its base not turned towards the back. 
Hab. Africa (not Madagascar). 
Genus GaLaGo, Cuv. et Geoff. (1795). 
Galago, Cuv. et Geoff. St.-Hil.(1795) Mém. sur la Cl. des Mamm. ; 
Fischer, Anat. der Maki (1804) p. 41; Syn. (1829) p. 67; Desm. 
Mamm. p. 103; Lesson, Species (1840) p. 245; Isid. G. St.-Hil. 
Cat. des Prim. p. 80; Dahlb. Studia Zool. p. 226; Gray, P. Z. 8. 
1863, p. 145. 
Otolicnus, Mliger, Prodr. (1811) p. 74; Van der Hoeven, Tijds. 
p- 41; Wagner, Schreb. Suppl. i. p. 290; v. p. 156. 
Otolemur, Coquerel, Rev. et Mag. de Zool. (1859) xi. p. 457. 
Otogale, Gray, P. Z. 8. 1863, p. 139. 
Callotus, Gray, P. Z. 8. 1863, p. 145. 
Galagoides, A.Smith, 8. Afr. Journ. ii. p. 32. 
Hemigalago, Dahlb. Stuaia Zool. (1856) p. 230. 
Characters.—The same as those of the subfamily. 
Subgenus 1. OrotemuR, Coquerel (1859). 
Characters.—Size large; skull, when viewed laterally, with the part 
anterior to the orbit longer than the anterior opening of the latter ; 
first upper premolar not canine-like ; angle of mandible produced 
downwards* ; tarsus relatively shorter than in the subgenus Ofolicnus. 
1. GaLtaco (OTOLEMUR) AGISYMBANUS. 
O. agisymbanus, Coquerel, Rey. et Mag. de Zool. (1859) xi. p.457, 
pls. 17 & 18. 
Hab. Zanzibar. Not improbably a variety of the next species. 
Type of the species in the Paris Museum. 
2. GALAGO (OroLEMUR) CRASSICAUDATUS. 
Lemur crassicaudatus, De Blainyille, Ostéogr. Lemur, (skull) t. 7, 
tarsus (by error) pl. 5. 
Galago crassicaudatus, Geoff. St.-Hil. Tabl. des Quad. (1812) ; 
* Only slightly so in Galago (Otolemur) montetré. 
