244 PAN 
PAN LEUCOPRYMNUS (Lesson). 
Anatomy of Pigmy Tyson, Phil. Trans., 1699, p. 338. Founded 
on Tyson’s Anat. Pigmy, Lond., 1699, p. 338, undeterminable. 
Simia leucoprymnus Less., Prodr. Syst. Mamm., 1841, pl. XII; Jd. 
Illus. Zool., 1831, pl. XXXII, juv. 
Simia troglodytes Owen, Trans. Zool. Soc. Lond., I, 1835, p. 343, 
pls. XLVIII-LVII, (nec Gmel.). Ex Sierra Leone. 
Pseudanthropus leucoprymnus Reichenb., Vollstand. Naturg. 
Affen, 1862, p. 191. 
Simia pygmeus leucoprymnus Rothsch., Proc. Zool. Soc. Lond., 
II, 1904, pp. 430, 431. | 
Simia leucoprymnus Matschie, Sitzungsb. Naturf. Freunde, 1904, 
p. 65. 
Type locality. “Coast of Guinea.” West Africa. 
Geogr. Distr. Sierra Leone? Western Liberia? West Africa. 
Genl. Char. Hairs on head sparse, parted in center; chin hairs 
brownish; ears large; region around eyes pale like face; beard around 
chin, short, thick. G 
Color. Entire pelage black excepting a white patch on buttocks. 
Measurements. “Height, 26 in.; width of ear, 2 in.; length of 
body, 14 in.; of arm, 14.6 in.; of legs, 12 in.; of hands, 3.8 in.; feet, 
4 in.” Less., (1. c.).. Ex type. 
The above measurements show that the type of this species was 
quite a young animal, probably not half grown. Its entirely pale face 
causes it to differ from P. cHIMPANSE, but it is impossible to determine 
what species it really represents, as the young of many species of 
Chimpanzees have white about the anal region, and the youth cf the 
specimen figured by Lesson presents no characters to separate it from 
the young of other species. It may possibly be the young of P. cH1M- 
PANSE. 
The skeleton described by Owen (1. c.) having been obtained in 
Sierra Leone was probably an adult of this species. It does not appear 
that the skin was preserved. The skull is peculiar in that the brain- 
case is posterior to the face and not above it. The form of the brain- 
case is a rounded ovate, and the skull is narrow and elongate; quite a 
different shape from the usual skull of Chimpanzees. 
The Simia pygme@a Schreber, founded upon Tyson’s Pigmy is 
quite undeterminable. The figure has face, ears, hands and feet flesh 
color, no beard, and hair covering all the head and very short. Body 
