10. ATALAPHA. 273 



cimeas of not quite adult A. clnerea, which resemble the former 

 species closely. The concavity of the ear-conch and the tragus are 

 clothed with soft hairs. 



Above, on the back, black or very dark brown at the base, then 

 half the hair is pale yellowish white, succeeded by a dark band, the 

 extreme points white. Towards the head the upper black band 

 becomes paler, and disappears almost altogether on the face ; behind, 

 the light yellow band becomes deeper in colour, passing into dark 

 brown on the interfemoral membrane, the hairs still tipped with 

 white. 



Beneath, the fur under the neck wants the terminal black and 

 white bands ; these reappear on the chest, but the pale yellow band 

 is narrower than on the back, and disappears altogether on the 

 abdomen, being replaced by dark brown. 



The lower incisors are all equal, trifld, and slightly crowded ; the 

 first upper premolar extremely minute, in the centre of the angle 

 between the canine and second premolar. 



Var. a {Atalapha grayi). 



Lnsiurus grayi. Tomes, P. Z. S. 1857, p. 40. 



Atalapha grayi et pallesceus, Peters, MB. Akad. Beii. 1870, p. 910. 



This is the South-American form of A. cinerea, from which it 

 differs only in the less convexity of the inner side of the ear-conch 

 (Plate XVII. fig. 2), in being slightly smaller, and in the colour of 

 the fur, the second band next the extremity of the hairs being 

 reddish, not black or dark reddish brown as in A. cinerea. The 

 wing-membranes extend to the base of the toes ; and Mr. Tomes's 

 statement that they " extend a little way beyond the extremity of 

 the tibia, but do not reach halfway along the foot," has been founded 

 on an imperfect examination of the types. In the dried specimen 

 marked as the type the membranes have shrunk very much, and 

 appear, in this condition, as if they were attached near the end of 

 the tibia ; when moistened, however, the true position of their at- 

 tachment is shown. I do not think the differences described above 

 are sufiicient to separate this form from South America as a distinct 

 species from A. cinerea. Allen has remarked that the bright red 

 varieties of A. noveboraeensis are found in the warmer latitudes of 

 America, while the greyish chocolate and dark red varieties occur 

 in the northern parts of the country. In the same manner A. 

 cinerea appears to me to be represented in South America (whence 

 the types of A. grayi have come) by a variety slightly smaller, and 

 having the second brownish chocolate band replaced by bright red- 

 dish brown. 



Length (of an adult 5 of A. cinerea from California), head and 

 body 2"-9, tail 2"-85, head 0"-8, ear 0"-7x0"-5, forearm 2"-l, 

 thumb 0"-52, third finger 4"-2, fifth finger 2"-5, tibia 0"-9, ealcaneum 

 0"-6, foot 0"-46. 



Hah, North and South America, from Jfova Scotia to Chili. 



