38 BULLETIN 99, UNITED STATES NATIONAL MUSEUM. 
skin; the skull was at the same time removed and cleaned. The 
specimen is apparently a female. No exact data accompany the 
specimen. 
COLOBUS ABYSSINICUS ABYSSINICUS (Oken). 
1816. L [emur] abyssinicus OkEN, Lehrb. Nat., 3ter Theil, 2te Abth., p. 1182. 
(Abyssinia. ) 
1892. Colobus guereza True, Proc. U.S. Nat. Mus., vol. 15, p. 448. October 26. 
Specimen.—One, from— 
[ApyssrntA]: ‘Northeastern Africa” (received from H. A. Ward). 
The skin of this specimen has been mounted and is on exhibition 
in the mammal hall. The skull is in the study series in the Division 
of Mammals. The specimen was purchased in 1884 from H. A. Ward, 
Rochester, New York, and is without definite data. 
COLOBUS ABYSSINICUS POLIURUS Thomas. 
1900. Colobus abyssinicus poliurus THomas, Proc. Zool. Soc. London, p. 801. 
(Omo River, north of Lake Rudolf, Abyssinia; type in British Museum.) 
Specimens.—Two skins, paratypes, from— 
AxsysstntA: Omo River, north of Lake Rudolf, 2 (Smith). 
These specimens, part of the original series brought home by 
Dr. A. Donaldson Smith and received by the Museum from the 
Academy of Sciences of Philadelphia, are native skins without skulls. 
COLOBUS CAUDATUS CAUDATUS Thomas. 
1885. Colobus guereza caudatus Tuomas, Proc. Zool. Soc. London, p. 219, pl. 12. 
(Useri, northeastern flank of Mount Kilimanjaro, British East Africa; 
type in British Museum.) 
1892. Colobus caudatus TRUE, Proc. U.S. Nat. Mus., vol. 15, p. 447. October 26. 
1913. Colobus abyssinicus caudatus HetuER, Smithsonian Misc. Coll., vol. 61, No. 
17, p. 6. October 21. 
Specimens.—Nine, from— 
German East Arrica: Kahe, 9, including four odd skulls (Abbott). 
The five skins of this form are mounted in an exhibition group; 
the nine skulls are in the Division of Mammals. 
The subspecies of Colobus caudatus are all easily distinguished from 
the forms of Colobus abyssinicus and C. occidentalis by the luxuriant, 
bushy tail. They are closely related, and the typical subspecies 
from Kilimanjaro and ©. c. kikuywensis especially, are much alike. | 
Adult male skulls of C. caudatus caudatus develop a sharply marked 
sagittal crest, such as is not found in any of the skulls of much older 
individuals in our large series of kikuywensis from KGjabe and Mount 
Kenia. The skull figured by Elliot, Review of the Primates (vol. 3, 
pl. 19), as Colobus caudatus, was, I have been informed by Dr. J. A. 
Allen, collected at Kijabe and is therefore referable to Colobus c. 
hikuyuensts. 
