440 



Bulletin American Museum of Natural History. [Vol. XXXVII, 



A single specimen, a nearly adult male, collected at Leopoldville, 

 July 8, 1909, is provisionally referred to typical bocdgii. It agrees in the 

 coloration of the upperparts with M. b. cupreolus, but in the coloration of 

 the underparts differs from all the other 24 specimens of the bocagii group 

 collected by the Expedition, being ashy gray without any buffy tinge in- 

 stead of pale buff to ochraceous buff, as in both cupreolus and hildegardece. 

 That the difference is not due to immaturity is shown by perfectly compar- 

 able specimens from other localities. 



« 



29. Myotis bocagii cupreolus Thomas. 



Myotis bocagei cupreolus Thomas, Ann. and Mag. Nat. Hist. (7), XIII, p. 407, 

 1904. Efulen, Bulu Country, Cameroons. 



Fourteen specimens (12 skins with skulls and 2 in alcohol), collected as 

 follows: Bafwabaka, 11, Jan. 4-7, 1910; Medje, 3 (1 ad., 2 juv.), June 27, 

 1909. 



Collectors' measurements of the Bafwabaka series (4 ad. males, 4 ad. 

 females): Total length, 86.6 (83-90); head and body, 47 (46-50); tail, 

 39.6 (36-42); foot, 12 (all 12); ear, 15 (all 15). 



Forearm of same specimens (in skin), 38 (37.3-38.8). Skulls of same 

 specimens, 14.6 (14.1-15.1). 



It may be worth while to note that the length of the red tips to the hairs 

 of the back varies from 2 to 5 mm. in specimens taken at Bafwabaka on the 

 same day, as this feature has sometimes been considered of value as a diag- 

 nostic character. 



30. Myotis bocagii hildegardese Thomas. 



Myotis hildegardece Thomas, Ann. and Mag. Nat. Hist. (7), XIII, p. 209, March, 

 1904. Fort Hall, Kenya District, British East Africa. Alt. 4000 feet. 



Thirteen specimens (skins, 7 with skulls), collected as follows: Aba, 11, 

 Dec. 16-19, 1911; Faradje, 2 (1 in alcohol), March 25, 1911. 



Collectors' measurements (10 specimens from Aba (6 males, 4 females) : 

 Total length, 90 (85-96); head and body, 50 (40-53); tail, 40 (38-42); 

 foot, 11.2 (10-12); ear, 14.4 (13-16). 



Forearm (same specimens), 38.6 (36.7-40.5). Skull (5 Aba specimens), 

 total length, 14.9 (14.6-15.5). 



The series of specimens from Aba averages slightly larger in all measure- 

 ments than the series from Bafwabaka, referred above to M. bocagii cupreo- 

 lus, and the coloration is much paler. 



