Sicamp-Rula of East Africa, 



1(;3 



Ciroup 1. 



Nasala very broad anteriorly (more than 8 mm. in widtlO, without 

 aiiv Hu'dJon angular transition bctweeu the broad and tho narrow 

 portions. 



(14) Otonvjs angoniensis, Wrouglit. 



Otomya irroratus aw/onioms, Wrought. Ann. & Mag. Nat. Hist. (7) 

 vol. xviii. p. L'74 (llKXJ). 



A large species with very broad nasals, which narrow more 

 gradually than in the tropicalis group, the ])attern more 

 truniiict-.siiaped than spoon-shaped. In tropicalis and its 

 allies there is usually a sharp constriction ju.st posterior to 

 the expanded portion ; in angoinensin there is no such con- 

 striction, the sides of tho nazals forming a simple trumpet- 

 sliaped design, without the well-marked "neck" seen in 

 trojiicdlis. 



General colour rattier like that of tropicalis, but more 

 coar.sel}' lineil with hnlY. Ventral surface of body strongly 

 tinged with buft'. 



Skull about equal in size to that of tropicalis ; nasals 

 broadly expanded in front and narrowing gradually behind. 



Dimensions of the type (from dried skin) : — 



Head and body 175 mm. ; tail 90; hind foot 30; ear 21. 



tSkull : greatest length 42; zygomatic breadth 20 ; breadth 

 of brain-case 15'6 ; length of nasals 19*7 ; greatest width 

 across nasals 8'9 ; depth from highest point of orbit to 

 alveolar border at front of ni^ I'.Vi) ; palatilar length 19; 

 length of up|)er molar series from front alveolar border to 

 back of vi' 10-7. 



Hub. M'Kombhuie, Angoniland, Nyasa. Altitude 8000 

 feet. 



Ti/pe. Adult female. B.M. no. 2. 1. 6. 22. 



Thi.s 8])eci<'S may be known by its long and broadly ex- 

 panded trnm|)et-shaj)ed nasals. 



In the iMuseum collection are several specimens from the 

 type-locality and a few from the Shire Highlands and Zomba, 

 S. Nyasaland, all reforal)lo to angoniensis. 



(IT)) Otomgs angoniensis elassodon, Osg. 



Otomys anffonieiisis ela.*sodon, Osgood, Field ^lus. Nat. Hist. Publi- 

 catiou, 141, Zool. Ser. vol. x. no. 2, p. 10 (1910;, 



Related to 0. angoniensis, rather smaller in size and paler 

 and greyer in colour. 



11* 



