1934] Hatt, American Museum Congo Expedition Pangolins and Aard-Varks 653 



completely within the limits of variation exhibited by our series from 

 that region. Thus the specimen from Bolobo (a native skin) and one 

 collected at Lukolela by Mr. Franklin Edson, III, both have the middle 

 front claw 5 and 2 mm. longer, respectively, than any seen on specimens 

 from other districts. The hair on the chins of these two animals from 

 the Moyen Congo is also longer than that of the specimens from the 

 forest of the Ituri-Haut Uele border, but in the absence of associated 

 variables, and with such small series to study, there is no justification 



MN.H.53 864 



16 



Fig. 1. Extremes of skull shape in Manis longicaudatus. a. — Immature 9 , 

 Akenge, Belgian Congo (No. 53861): &.— Immature 9, Gamangui, Belgian Congo 

 (No. 53864). 



for assigning distinctive names to the animals bearing these minor 

 characters. It may be added that the few specimens from Liberia, the 

 Cameroons, and Gabun that I have examined show no single feature 

 not duplicated by some specimen in the small series of the Congo collec- 

 tion, if marks of advanced age, discussed above, are excepted. 



The Skull. — The skulls of Manis longicaudatus vary to the ex- 

 tremes of proportion exhibited by two female specimens taken within 

 40 kilometers of each other, shown in figure 1. These two are of only 



