EIDOLOX HELVUM. 13 



Ausnahmo dcr Basis gauz frcieii Daumen."' The pollex is in 

 E. helvum always included in the membrane only by the metacarpal 

 aud the extreme base of the first phalanx. That the specimen had 

 no tail is no doubt a mistake ; if, when skinning an Eidolon, the 

 tail -vert ebrnc are extracted together with the body, the empty tail- 

 skin shrinks so raiTch that the specimen seems to be tailless. 



Xanlharpyia leucomeJas, Fitz. ; 1866. — In Schreber's ' Saug- 

 thiere,' Suppl. i. p. 358, footnote (1840), Wagner describes a 

 female of '■^ FUropus stramineus" (presumably in the Munich 

 Museum) " aus den oberen Xilgegenden." Even if Wagner had 

 not recorded the sex of this specimen, it would be easy to see, from 

 the description of the colour of the fur, that it is a female of 

 E. helinim. Fitzinger, being unaware of the sexual colour differ- 

 ence in this species, ])roposed for the specimen referred to by 

 Wagner the name X. leucomelas. A skin in the British Museum 

 (specimen c in the list below) belongs to the same series as the type 

 of X. leucomelas. 



Leiponyx huttUcoferi, Jent. ; 1881. — Type locality: St. Paul's 

 River, Miilsburg, Liberia; type in the Leydeu Museum. Chief 

 characters, according to Jentink : postcanine teeth ^; second digit 

 ■without claw. — I have examined the t3'pe in the Leydcn Museum, 

 and find it in every respect indistinguishable from E. helvum, nor 

 can I see any difference between British Museum specimens obtained 

 at places near the type locality of Z. hiittlkqferi (Nigeria, Ashantee, 

 Dahomey)and specimens from other places of Africa; the considerablo 

 amount of individual variation in this species, in external dimensions 

 and in the size of the skull ai;d teeth, is well shown in a British 

 Museum series of fifteen adult individuals fiom Fernando Po. — The 

 teeth in the type of L. hiittikoferi are excessively worn, some of 

 the posterior molars entirely lost and their alveoli filled out. This 

 explains Jentink's statement that the number of cheek-teeth is -., a 

 result evidently arrived at as follows : — Upper jaw, left side : p\ p* 

 ((hese premolars entire), two roots of p^ (m' lost and alveolus closed ; 

 of m* a rudiment of posterior root present, but no doubt undetectable 

 when the skull was in situ), giving an apparent total of four teeth ; 

 upper jaw, right side : p', p^ two roots of p'' (ra' and m" entirelj' 

 disappeared and alveoli closed), giving similarly a total of four : 

 mandible, left side : p,, p.^, p^ (these premolars entire), a broad 

 interspace representing raj (disappeai'ed, alveolus closed), two roots 

 of m., (m, entirely wanting), giving seemingly a total of six; 

 mandible, right side : p^, p.,. p^, two roots of m,. anterior root of m^ 

 (])osterior root of m„ and m^ lost), giving similarly a total of six. — 

 As to the absence of the claws of the second digits, it must be said 

 that not the claws only but the w'hole ungual (third) phalanx is 

 wanting ; the distal articular surface of the second jihalanx is. 

 however, in both wings laid bare, nakedly projecting, so that the 

 missing phalanges have undoubtedly been violently torn off. The 

 I'rcsh condition of the wounds shows that this must have been 

 done shortly before, or peihaps after, the death of the individual. 



