INDRIS 175 



GENUS INDRIS. BLACK INDRIS. 



T 2—2 „ 1—1 „ 2—2 ., 8—3 



I. i=i; C. 113; P.^,; M. 3-3 = 3°- 



INDRI (sic) E. Geoff., Mag. Encyclop., I, 1796, p. 46. Type 



Lemur indri Gmelin. 

 Indrium Rafin., Analys. Nat., 1815, p. 54. 

 Pithelemur Less., Spec. Mamm., 1840, pp. 207-209. 

 Syhanus Oken, Lehrb. Naturgesch., 1816, 3ter Theil, Zool. 2te 



Abeth., 1223-1225, (nee Latreille 1870, Coleopt.). 



Head longer than broad ; nose moderately lengthened covered 

 with short hairs ; fingers and toes hairy to the tips ; ears rounded with 

 a hairy fringe ; arms about one quarter as long as legs ; hands long, the 

 four outer fingers united by a membrane up to the first joint; toes 

 united half way. Ears rather large, tufted ; tail rudimentary. Skull : 

 long, laterally compressed ; nasals not reaching end of premaxillas ; 

 two upper premolars are unicuspidate ; the molars quadricuspidate, 

 each pair united by a transverse ridge; canines higher than premolars, 

 no diastema ; incisor subequal ; first and second lower premolars semi- 

 cuspidate; first molar quadricuspidate, each pair connected by an 

 oblique ridge; anterior external cusp continued by a curved ridge to 

 anterior basal process, and posterior internal cusp is joined to the 

 anterior internal cusp by a curved oblique ridge ; second molar quadri- 

 cuspidate, no oblique ridge, the pairs of cusps connected by transverse 

 ridges; posterior molar quinquicuspidate, oblique ridges connecting 

 the pairs of cusps ; incisors varying with individuals and in proportions, 

 and with longitudinal external ridges. Laryngeal pouch present. 



Indrisindeis (Gmelin). 



Lemur indri Gmel., Syst. Nat., I, 1788, p. 42; Link, Beytr. 



Naturg., 2nd Pt. 1795, p. 65; Cuv., Regn. Anim., 1817, I, 



p. 118; 1829, p. 108; 1836, p. 130. 

 Indri brevicaudata E. Geoff., Mag. Encyclop., 1796, p. 46; Shaw, 



Genl. Zool., I, 1800, p. 94, pi. XXXII ; Fisch., Anat. Maki, 



1804, p. 15, pi. II; Schleg., Mus. Pays-Bas, Simiae, 1876, 



p. 290. 

 Lichanotus indri Illig., Prodr. Syst. Mamm. et Avium, 1811, p. 



