18/6.] MR. G. E. DOBSON ON THE MOLOSSI. 719 



Inc. ' or-. ; pm. 7;3i ; ears united or close together. 

 (Subgen. Nyctinomus, Peters.) 



1 . Nyctinomus africanus. 



Nyctinomus africanus, Dobson, Ann. & Mag. Nat. Hist. ser. 4, 

 vol. xviii. p. 348 (1876). 



Ears large, their inner margins arising from perfectly distinct 

 points of origin though close together, outer and inner margins of 

 the ear-conch regularly convex, forming an arc of a circle ; anti- 

 tragus irregularly quadrilateral with a broad base, separated poste- 

 riorly by a moderately deep notch, upper margin straight or even 

 slightly concave ; tragus broad, evenly rounded off above ; keel of the 

 ear very prominent, thickened and flattened externally in lower third. 



Fur bright orange-chestnut above and beneath. The fur of the 

 body extends upon the wing-membrane above almost as far as a line 

 drawn from the middle of the humerus to the knee, and upon the 

 base of the interfemoral membrane ; the remainder of the upper sur- 

 face is naked. Beneath, the fur scarcely extends so far outwards 

 upon the wing-membrane between the humerus and femur as upon 

 the upper surface ; but a narrow baud of short hairs passes outwards 

 behind the posterior margin of the forearm to the carpus. 



Lower incisors 4, not crowded ; first upper premolar very short 

 and blunt, but occupying by its base the whole space between the 

 canine and second premolar. 



Length: head and body 3" - 4 ; tail 2"'4, tail free from membrane 

 l" - 5; head 1"*2 ; ear l" - 0, tragus 0"'3x0""15; forearm 2""5 ; 

 thumb 0"*4 ; second finger — metatarp. 2"*4, 1st ph. 1"*1, 2nd ph. 

 l"-3 ; third finger — metacarp. 2"'15, 1st ph. 0"-9, 2nd ph. 0"-35 ; 

 fourth finger — metacarp. l" - 25, 1st ph. 0" , 75, 2nd ph. 0" - 3; tibia 

 0'''75 ; foot and claws 0"'45. 



Hub. South Africa (Transvaal Republic). Type in the collection 

 of the British Museum. 



2. Nyctinomus cestoni. 



Dinops cestonii, Savi, Nuov. Giorn. de' Letter, p. 230 (1825); 

 Bullet, des Sci. Nat, viii. p. 286 (1826) ; Temminck, Monogr. 

 Mammal, i. p. 262 (1835-41). 



Dysopes riippellii, Temm. /. c. ii. p. 224. 



Dysopes midas, Sundevall, Stockh. Vet. Ak. Handl. 184?, p. 207. 



Dysojies cestonii, Wagner, Suppl. Schreb. Siiugeth. v. p. 702 ; var. 

 nigrogriseus, Schneider, Nouv. Mem. Soc. Helvet. xxiv. 1871, p. 9. 



Nyctinomus insig?iis, Blyth, Cat. Mamm. Mus. A. S. Beng. (1863). 



Nyctinomus (Dysopes) ventralis, Heuglin, Nova Acta Acad. 

 Leop.-Carol. 1861, p. 11*. 



Dysopes (Mo/ossus) rueppelli, Swinhoe, P. Z. S. 1870, p. 619. 



Nyctinomus cestonii, Dobson, Mon. As. Chiropt. p. 180(1876). 



Ears united by the bases of their inner margins on the muzzle at 



* The type of N. ventralis is preserved in the Stuttgart Museum, and, Dr. 

 Krauss informs rne, is identical with N. cestoni. 



