13. NYCTINOMUS. 429 



the slightly broader tragus. In every other respect it agrees so 

 perfectly in structure and measurements with that species that I can 

 scarcely consider it specifically distinct. 



Pur above dark brown, also the shoulders, throat, and upper part 

 of the breast ; the remaining parts of the ventral surface pale yel- 

 lowish white, and the wing-, antebrachial, and inferior surface of 

 the interfemoral membrane of the same colour. In immature indi- 

 viduals the white colour of the ventral surface is not so much ex- 

 tended, but appears as a more or less broad patch on the abdomen, 

 increasing in extent according to age. 



Hah. Africa, south of the equator (Zanzibar, Mozambique, Angola) ; 

 Madagascar. 



This appears to be the southern representative of N. pumilus. 



a. c? ad., al. W. Africa. Mr. Fraser [C.]. 



b-e. c?& $ ad., al. Angola. Dr. J. E. Gray [P.]. 



/. 5 ad., al. Dar-es-Salam. Dr. Kirk [CJ. 



ff. 5 ad., al. Zanzibar. Dr. Peters [C.]. 



h, i. c? ad., al. Zanzibar. Dr. Kirk [C.l. 



j. 5 imm., al. Zanzibar. Dr. Kirk [C.]. 



k. <S ad., al. Zanzibar. Purchased. 



/. $ imm., al. Mozambique. Dr. Peters [C.]. 



10. Nyctinomus augoleusis. 



Nyctinomus angolensis, Peters, Jorn. Scicn. Matliem. Phys. e Natar. 

 Zisboa, No. X. 1870 ; Bobson, P. Z. S. 1876, p. 724. 



Ears much shorter and more triangular than in any of the spe- 

 cies previously described, conjoined on the muzzle by a very deep 

 band, as in N. 2fumilus ; the anti tragus and keel of the ear-conch 

 as in that species ; integuments of the ears thick ; tragus very small, 

 quadrate, superior margin directed upwards and outwards ; upper 

 lip remarkably thick in front, so that the extremity of the nose does 

 not project much beyond its margin, its sides grooved by vertical 

 furrows (Plate XXII. fig. 4). 



No gular sac in male or female. 



Thumb long ; feet large ; wing-membrane from the middle of the 

 tibiae. 



Fur, above and beneath, very short. Above, white at the base, ter- 

 minal three fourths of the hairs deep reddish brown ; beneath yellowish 

 white or pale reddish yellow ; the shoulders, sides of the neck, chest, 

 and abdomen reddish brown. On the upper surface the membranes 

 are almost quite naked ; beneath, the wing-membrane is covered 

 with very short, fine, pale yellowish-white hairs as far outwards as a 

 line drawn from the middle of the humerus to the knee, and similar 

 short fur appears upon the interfemoral membrane. 



The first upper premolar very small, scarcely visible without the 

 aid of a lens, in the outer angle between the closely approximated 

 canine and second premolar : sometimes deciduous. Lower incisors 



crowded. ^ 



Length (of an adult $ ), head and body 2 -9, tail 1 "8, tail free 



