so BRACHYTELEU S 



The genus Brachyteleus was here first established, and B. 

 AR.ACHNOIDES was redcscribed as Brachyteles ( !) macrotarsus. 



1829. /. Geoffroy Saint-Hilaire, in Memoires du Museum d'Histoire 

 Naturelle, Paris. 



Under his genus Eriodes = Brachyteleus three species are 

 named. (£.) arachnoides; (£.) tuberifer, and (£.) hemi- 

 dactylus, the last two = B. arachnoides. E. hemidactylus 

 was simply another name proposed for hypoxanthus because as 

 the Author supposed, it had been given to two species, he 

 believing that the presence or absence of the thumb constituted 

 a specific character. 



1870. Gray, Catalogue of Monkeys, Lemurs and Fruit-eating Bats, 

 in the Collection of the British Museum. 



In this List the individual here called a variety without a thumb, 

 is named Brachyteles ( !) arachnoides, and the variety with 

 a rudimentary thumb B. hypoxanthus. Only one species, how- 

 ever is recognized, B. arachnoides. 



1876. Schlegel, Museum d'Histoire des Pays-Bas, Simice. 



The single species of Brachyteleus is here placed under 

 Ateles ( !) and is divided into two according to the presence or 

 absence of the thumb, as {A.) arachnoides, and {A.) 

 hypoxanthus — B. arachnoides. 



Beachyteleus aeachnoides (E. Geoffroy). 



Ateles ( !) arachnoides E. Geoflf., Ann. Mus. Hist. Nat. Paris, 

 VII, 1806, p. 271 ; XIII, 1809, p. 90, pi. IX ; XIX, p. 106; Id. 

 Cours Hist. Nat. Mamm., 1828, p. 30, 9me Legon; Kuhl, 

 Beitr. Zool., 1820, p. 25; Desm., Mamm., 1820, p. 72; Rei- 

 chenb., Vollstand. Naturg. AfTen, 1862, p. 57, fig. 140; Schleg., 

 Mus. Pays-Bas, Simise, 1876, p. 184. 



Ateles ( !) hypoxanthus Kuhl, Beitr. Zool., 1820, p. 25 ; Desm., 

 Mamm., 1820, p. 72 ; E. Geofif., Cours Hist. Nat. Mus., 1828, 

 p. 30, 9me Legon ; Wagn., Schreb., Saugth. Suppl., I, 1840, 

 p. 202; V, 1865, p. 79; Schleg., Mus. Pays-Bas, Simise, 1876, 

 p. 184. 



Brachyteles ( !) macrotarsus Spix, Simiar. et Vespert. Bras., 1823, 

 p. 36, pi. XXVII. 



Eriodes hemidactylus E. Geoff., Mem. Mus. Hist. Nat., Paris, 

 XVII, 1829, p. 163 ; Less., Spec. Mamm., 1840, p. 135 ; Dahlb., 

 Stud. Zool. Fam. Reg. Anim. Natur., fasc. I, 1856, p. 135 ; 

 Reichenb., Vollstand. Naturg. Affen, 1862, p. 58, fig. 145. 



