On new }t\ y oils d:c. from Central and South America. 541 



To be treated as non-e.ristent. 

 Species tfu tyjHs of which are not now to be found in the British Museum. 



Lyg<Pus coynatus, Walk. Cat. Het. v. p. 49. n. 69 (1872). 



japonifus, Walk. loc. cil. p. 58. n. 118. 



lonyiitsru/us, Walk. ioc. cit. ]>. (>(). n. 120. 



sinyularif, W'lilk. luc. cit. p. &,i. n. 140. 



Nysiiig mundux, Walk. lor. cit. p. ()9. ii. 27. 



subcinctug, Walk. loc. cit. p. 70. n. 31. 



palliperinis, Walk. loc. cit. p. 71. a. '.i2. 



LXIX. — J^'ew Myotis, Artibeus, Sylvilagu.s, and Metachiru.s 

 from Central and South America. By OldfielD ThomAS. 



Ml/Otis simus, sp. n. 



A small .shoit-liaiicd Myotis, with very mucli tlie general 

 facics of a P (pistrellus or one of the smaller Scotophili. 



Size small. General build and appearance very different 

 to those of other American species of Myotis, and more as in 

 Pipistrellus or Scotophilus. Head broad and flat, muzzle 

 swollen and tumid. Ears rather short, reaching when laid 

 forward about halfway between the eye and the tip of the 

 nose ; their inner margin evenly convex for their proximal 

 three fourths, slightly concave above ; tip narrow ; outer 

 margin concave for the uj)per and convex for the lower half; 

 antitragal notch scarcely perceptible; basal lobe forming a 

 prominent thickened point projecting forwards. Tragus 

 pointed, slightly curving outwards above, its inner margin 

 convex, its outer concave above, convex below ; a small 

 triangular lobule at the outer base. 



Wing-bones comparatively stout, as also are the tibiaj. 

 Wings attached to the ankle. Postcalcareal lobule practi- 

 cally absent. Tail included in interfemoral membrane to tlie 

 extreme tip. 



Fur of body short and sparse (hairs of back about 2*5 mm. 

 in length), not extending on the wing-membranes, and only on 

 tlie interfemoral for its basal third, above and below. No 

 fringe on interfemoral. 



Colour above and below pale tawny brown, about as in some 

 of the small pale species of Scotophilus. Wing-membranes 

 darker brown, without lighter edging. 



8kull rather broader than usual, with a shorter muzzle. 

 Jn the ordinary small American Myotis the distance across 

 tlie jialate at the outer corners of wi.' is just equal to the length 



