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1879.] DR. DOBSON ON CHIROPTERA FROM ZANZIBAR. 717 



E. gambianus; and it maybe seen that considerable differences 



exist : — 



E. labiattis. E. gambianus. 



Length, head and body 5*0 5*5 



„ head 1-95 2.0 



,, eye from tip of nostril - 8 0*7 



„ ear 0'8 0-85 



„ forearm 2"85 3 # 3 



„ thumb 1-2 1-4 



third finger, metacarpal .... T95 2 - 25 



1st ph 1-3 1*5 



2nd ph 2-U 2"25 



„ fifth finger, metacarpal 1"9 2*15 



„ „ lstph 0-9 1-2 



„ „ „ 2nd ph # 95 1*15 



„ tibia 1-15 1-2 



„ foot 075 07 



3. Tricenops persictjs, var. afer. 



Tricenops persicus, Dobson, J. A. S. B. 1871, p. 455, pi. xxviii. ; 

 id. Catal. Chiropt. Brit. Mus. (1878), p. 124, pi. viii. fig. 1. 



Tricenops afer, Peters, Monatsb. Akad. Berl. 1876, p. 913. 



After a most careful comparison of the specimens in the collection 

 (which must be referred to the same species as that indicated by 

 Prof. Peters under the name of T. afer) with others of T. persicus 

 from Shiraz, I am unable to find any differences of importance. I 

 find that the characters enumerated as distinctive of T. afer, such 

 as the form of the emarginations on the inner side of the ear-conch 

 and the shape of the central lanceolate process of the nose-leaf, are 

 variable to the extent described in the different specimens, while the 

 darker colour of the fur observable in the African form is probably 

 the normal shade in this species, the type specimens from Persia 

 having fur of a paler colour in conformity with that of other species 

 of animals inhabiting the sandy districts about Shiraz l . 



The following Table shows how very closely the measurements of 

 the Zanzibar specimens agree with those of one of the specimens 

 from Persia, from among which the type of this species was taken : — 



Shiraz. Zanzibar. 



Length, head and body 2-3 2*4 



„ tail 1-2 1-2 



„ ear 0*45 0'4 



forearm 2-0 2-0 



third finger, metacarpal 1'6 1*45 



lstph 0-5 0-55 



„ 2nd ph 07 0-65 



fourth finger, metacarpal 1'45 l - 35 



„ „ „ 1st ph 0'4 0*45 



„ „ 2nd ph 0-35 0-35 



1 See note on the colour of the fur in Vcspcrugo pipistrelhis and other species, 

 in Catal. Chiropt. Brit. Mus. p. 225. 



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