PAN 227 
GENUS IV. PAN. 
2—2 1—1 2—2 3-3 
Ia; C.is P. sys M. 33=33. 
PAN Oken, Lehrb. Naturg., 3te Theil, Zool., 2te Abth., 1816, pp. XI, 
1230. Type Pan africanus Oken = Simia satyrus Linnzus. 
Troglodytes E. Geoff., Ann. Mus. Hist. Nat. Paris, XIX, 1812, 
p. 87, (nec Vieill., 1806, Ornith.). 
Mimetes Leach, Thomp. Ann. Philos., XVI, 1820, p. 104, (nec 
Hubn., 1816, nec Eschsch., 1818, Entom.). 
Theranthropus Brookes, Cat. Anat. Zool. Mus., J. Brookes, Lond., 
1828, p. 28. 
Anthropopithecus Blainv., Ann. France et Etrang. d’Anat. et 
Physiol., Paris, II, 1839, p. 380. 
Hylanthropus Glog., Hand. u. Hilfsb. Naturg., I, 1841, pp. XX VII, 
34, 
Pseudanthropus Reichenb., Vollstand. Naturg. Affen, 1862, pp. 
191-194; Taf. XXXIV, XXXVII, figs. 493, 494; XX XVIII, 
fig. 501. 
Engeco Haeckel, Gen. Morph. Organism., II, 1866, pp. CI, foot- 
note, CLX. 
Pongo Haeckel, Gen. Morph. Organism., II, 1866, p. CL, (nec 
Lacépéde, 1799). 
Body rather stout, heavy; legs long, foot shorter than the hand, 
the great toe thick, opposable ; the other toes united by a web; arms long, 
reaching just below the knee; hands, broad, short; thumb short, four 
fingers united by a web; middle finger the longest; nose depressed in 
middle, flat at end; nostrils opening downward; lips mobile, protrusive ; 
ear large. Skull elongate; no central crest; supraorbital ridges large; 
jaws protrude forward; canines long, conical, small diastema between 
them and premolar; anterior lower premolar pointed ; molar teeth with 
four cusps except middle lower molar which has five. Humerus nearly 
equal in length to the radius. 
It cannot be said that at the present time, a list of the species and 
races of Chimpanzees can be satisfactorily given. We really know so 
little about them; the color of the young, the changes that take place 
from youth to age, the hues of the face, hands, and feet, whether these 
