﻿E. LÖNNBERG, NEW GUEREZA. 5 



SARGUE (2) writes, »tons les poils de la tete sont couchés et 

 dirigés d'avant en arriére». Peters' figure shows this as 

 well. With regard to the length of the tail exeeding that 

 of the head and body Sandberg's Guereza resembles C. pal- 

 liatus and its subspecies sharpei (ö), but the differences in 

 other respects are so great that a fiirther comparison does 

 not appear to be necessary. It is still less needed to extend 

 the comparison further to the Guerezas with a long white 

 måne along the sides forming a mantle. 



During the last years a considerably increased number 

 of species and subspecies of black and white Guerezas has 

 been made known to science. For the purpose of making 

 a synopsis of them as far as this can be done with the help 

 of the literature they may very aptly be divided in several 

 groups and undergroups in the following way. 



A. Entirely black: 



Colohus satanas. Ha b i ta t:, 



Cameroon, Fernando Po, Ogowe 

 (2), Niger. 



B. Black and white: 



a. A white måne or »mantle» more or less developed. > 



I. The white måne only developed at the shoulders 

 and anterior part of the body. 



1. No white superciliary or frontal band {2), {3). 



a. Tail black »having only a white termination» 

 (i), Tail shorter than head and body {2). 



C. angolensis. 



»Angola», inland from Membe 

 »300 miles from the coast» (1). 

 Left side of Congo River (2). 

 Kassai River. 



[3. Terminal half of tail grey with a white tip. 

 No white perineal patch iS). 



