8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



Characters. — Resembling Lasiopyga leucampax neumanni but dor- 

 sal coloration olivaceous (grayish-olive of Ridgway) without the 

 gray cast of that race and with the shoulders more extensively black ; 

 body size larger ; skull longer and narrower with well-developed 

 sagittal crest in age ; teeth larger and heavier. 



No flesh measurements of this race are available. The skull of the 

 type measures: greatest length, 122 mm.; basilar length, 87; zygo- 

 matic breadth, y~ : post orbital constriction, 41; median length of 

 nasals, 26; length of upper molar series, 28; width of palate at M", 

 21. The skull shows considerable age and has a well-marked sagittal 

 crest running the whole length of the brain case. The cheek teeth 

 and the middle incisors show much wear. 



The type is the only specimen in the National Museum, but there 

 is a series of nine specimens of the closely allied neumanni from the 

 Kakumega Forest for comparison in the museum collected by the 

 Rainey Expedition. This series which is very uniform smoke-gray 

 on the back exhibits practically no variation in tone and is easily dis- 

 tinguishable from the specimen collected by John Jay White. The 

 largest male in the series has a considerably smaller skull than the 

 type. The race here described occupies the highland forest of the 

 Mau Escarpment and is the easternmost representative of the Congo 

 group known as leucampax of which neumanni is the lowland Uganda 

 and Kavirondo race. 



LASIOPYGA ALBOGULARIS MARITIMA, new subspecies 

 Coast Forest Monkey 



Type from Mazeras, British East Africa; adult female, Cat. No. 

 182272, U. S. Nat. Mus. ; collected by Edmund Heller, December 17, 

 191 1 ; original number, 2585. 



Characters. — Lasiopyga albogularis maritima differs from the other 

 East African races by lighter coloration and absence of black lining or 

 black tips to the hair on the back and underparts. Back ochraceous- 

 tawny : underparts light smoke-gray without the blackish vermicula- 

 tion so prevalent in kolbi and kibonotensis.. Body size somewhat 

 smaller. Skull small with narrow palate and large cheek teeth. 



Measurements of the type in the flesh : head and body, 420 mm. ; 

 tail, 675 ; hindfoot, 125 ; ear, 31. Skull: greatest length, 95 ; basilar 

 length, 62 ; zygomatic width, 62 ; post orbital constriction, 42 ; median 

 length of nasals, 16; length of upper molar series, 25; width of 

 palate at last molar, 18. 



