60 ^Ir. K. AiiJor.seii on tJie Bits of the 



Colour. — Hairs of upperside with four alternating rin^^s of 

 dark brown and wliitish; the extreme base, next to the skin, 

 Avhite ; a broad ring of blackish brown ; a broad ring of 

 white or yellowish white; narrow tips of hairs approaching 

 clove-biown. Fur of underside dark brown at base, greyish 

 drab at tip. 



Range. — As yet only known from the type specimen, 

 obtained at Miravalles, Costa Rica. 



3. Glyphonycteris brachyotis, Dobson. 



1879*. Schizostoma brachyote, Dobson, P. Z. S. 1878, p. 880.— Type 

 from Cayenne; Paris Museuu] ; the only specimen on record. 



The species is known to me from the published account 

 only. 



Dobsou did not examine the skull ; the dentition is not 

 described in detail ; the presence or absence of a transverse 

 band between the ears is not mentioned, nor is there any 

 accurate information as to the proportionate length of the 

 metacarjials. 



Notwithstanding these deficiencies in the description of the 

 species, I think there can be little doubt that it is a member 

 of the genus Gfyphonycteris: — (1) The cusp of the first upper 

 premolar (p^) is, according to Dobson, " very oblique, 

 touching the canine^'; this probably means that the tooth is 

 remarkably long in antero-posterior direction, and the cusp 

 situated at the front end of the tooth, as in G/i/p/tonycteris : 



(2) the ears (" much shorter than head," tip " obtusely 

 pointed ") are as in G Be/mi, not as in a Microuycteris : 



(3) Dobson's omission of any reference to the ear-band is 

 probably an indication that it is absent : (4) the second 

 phalanx of the third d'git is much longer than the first 

 phalanx, also one of the features oi Glypltoni/cti'iisiw contia- 

 distinctiou to Mlcronycter'is: (5) unfortunately Dobson only 

 gives measurements of the third and tifth digits, but the 

 wing-indices, as derived from these measurements, are more 

 in accordance with those of GlijpJionycteris than with those 

 of Minunycti'.r'is. 



G brachyotis seems to be piccisely of the same size as 

 G. sylvc'stris, but the calcar is stated to be longer thau the 

 foot. 



Raiiye. — Cayenne. 



* The pa])er was read before the /o ih^^M^-al Society on Nov. o, 1878, 

 but probably not publis'hed until .\pril 187!'. 



