MAMMALIA. 751 



Compare Geoffr. Saint-Hilaire Mem. sur les singes A main impar- 

 faite, Ann. du Mus. vii. pp. 260 — 273. (The last species noticed there, 

 Ateles polycomos, is from the Eastern hemisphere, and belongs to Colobus 

 Illig.) 



Sub-genus Eriodes IsiD. Geoffr. (With fur woolly.) 



Sp. Ateles hypoxanthus Pr. Maxim., Ahh. ziir Naturgesch. Bras. Lief. I. 

 GUER. Iconogr., Mammif. PI. 4, fig. i {Brachy teles 1 Spix), with a very- 

 short thumb on the anterior limbs, without nail. (Eriodes hemidactylus 

 IsiD. Geoffr., Mem. du Mus. XVII. PI. 22, differs by having a nail on this 

 thumb, but is, according to Wagner, of the same species.) — The fore feet 

 have, on the contrary, only four fingers in Ateles arachnoides Geoffr., 

 Ann. du Mus. xiii. PI. 9, although in the skeleton one phalanx is attached 

 to the metacarpal bone of the thumb (Wagner Supplementband, 5te Abth. 

 s. 81). 



Sub-genus Ateles (in stricter sense, with long, rigid hair). 



Sp. Ateles paniscus, Simia Paniscus L., Bdfp. xv. PI. i. Adder. Singes, v. i, 

 PI. 2 ; Vosmaer Beschnjving van eene Amerikaansche langstaartige aapsoort, 

 Amsterdam, 1768, 4to; the coaita, dark black, the face red; fore feet 

 without thumb; the skeleton is figured in Pander und D'Alton Die 

 Skelete der Vierhander, Tab. 11. ; Surinam, Brasil. In a very similar spe- 

 cies a short thumb occurs: Ateles pentadacfylus Geoffr., Ateles belzebut 

 Geoffr., Cercopithecus belzebut Briss., Geoffr. Ann. du Mus. vii. 

 PI. 16, &c. 



LagotJirix Geoffr., Oastrimargus Spix. Head rounded, 

 beardless. Feet very long, fore feet pentadactylous. Fur soft. 

 Tail with tip naked below. 



Sp. Lagotkrix cana Geoffr., Gastrimargus olivaceus Spix, Schreb. Sdugth. 

 Tab. 26 F ; — Lagothrix infumata, Gastrimargus infumatus Spix, Gov. R. 

 Ani., ed. ill., Mammif. PI. 16, fig. 4. (This genus difiers little from the 

 preceding.) 



Mycetes Illig., Stentor Geoffr. Head pyramidal, bearded. 

 Fore feet pentadactylous. Tail naked below at the apical part. 

 (Lower jaw very high j hyoid bone expanded into an ample, reso- 

 nant bulla.) 



Sp. Mycetes seniculus, Simia Senicidus L., Buff. vii. PI. 25, Adder. Singes, 

 V. I, PI. 7, Gder. Iconogr., Mammif. PI. 3, fig. 3 ; the hoivling monkey, 

 VAlouatte, le hurleur roux, der Brullaffe; South America, Surinam, Brasil. 

 (Wagner is of opinion that Mycetes ursinus Humb. Recueil, i. PI. 30, and 

 Stentor chrysm-us Geoffr. may be referred to this same species.) — Mycetes 

 Beelzebut, Mycetes rufimanus Kdhl, &c. Compare on this genus IsiD. 

 Geoffr., Gderin Magas. de Zool. 1831; Gray Ann, of nat. Hist. xvi. 



pp. 217 — 221. 



