•150 On Two new Species of Myonycteris. 



LV. — Preliminary Descriptions of Two new Species of 

 Myonycteris. By Knud Andersen. 



Myonycteris wroughtoni, sp. n. 



Diagnosis. — m 2 about twice the bulk of p 1 . Skull and 

 teeth heavy. Forearm about 65-67 mm. Hob. Wello 

 District, N.E. Congo. 



Differential characters. — Skull larger and more heavily 

 built than in M. torquata * : total length 34 mm., against 

 31-318; rostrum longer and broader: from front of orbit to 

 tip of nasals 10*5-10*7, against 9-9*2, lachrymal width (across 

 lower edges of lachrymal foramina) 9 8-10 mm., against 8*8 ; 

 length of combined orbital cavity and temporal fos3a, mea- 

 sured on underside of skull from front of glenoid fossa to back 

 of maxillary process of zygomatic arch, 10'7-H mm., against 

 9-9'8 ; frontal region broader: interorbital breadth 6 mm., 

 against 5-5*2. Cheek-teeth on the whole slightly broader ; 

 vr less reduced in size, being about twice the bulk of p 1 (in 

 M. torquata subequal to p 1 ), actual length of tooth in two 

 specimens 0"9 mm., against 0'5-0'7 in two M. torquata, 

 breadth O'G-O^, against 0-4-0'5. — Wings, tibia, and foot 

 conspicuously longer ; forearm 65-67 mm. (57-60'5 in 

 M. torquata), third metacarpal 44*5-45 (36-39), lower leg 

 25-25'5 {22), foot with claws 17-19 (14). Distribution and 

 colour of fur as in the allied species. 



Type. <$ ad. (skin and skull), River Likandi, Welle 

 District, 18th April, 1906; Alexander-Gosling Expedition; 

 13. M. 7. 7. 8. 25. Two specimens examined. 



JSamed in honour of Mr. R. C. Wroughton, who assisted 

 in working out the mammals collected during the Alexander- 

 Gosling Expedition f. 



Myonycteris leptodon, sp. n. 



Diagnosis. — m 2 about twice the bulk of p l . Molariform 

 teeth short and narrow. Forearm about 61-62 mm. 

 Uab. Sierra Leone ; Liberia. 



Differential characters. — Skull similar to that of M. wrough- 

 toni, but rostrum narrower in front (distance between inner 

 bases of canines 3'3 mm., against b'7-4 in M. wroughtoni 



* Cynonycteris torquata, Dobson, Cat. Ckir. B. M. p. 76, pl. v. fig. 1 

 (animal) (1878). C. brachycephala, Bocage, J. Sci. Math. Lisboa, (2) i. 

 no. 3, p. 197 (1899). 



t Ann. & Mag. Nat. Hist. (7) xix., May and June, 1907. 



