2 ARKIV FÖR ZOOLOGI. BAND 2. N:0 20. 



specimens. On grounds mentioned in the foUowing I do not 

 consider it a distinct species, placing it instead as a variety 

 of Hylamhates rufus. 



Råna subsigfillata A. Dum. 



BotiLENGER. Proc. Zool. Soc. London 1890, p. 437. 



Though of about similar size, the two specimens, which 

 are to be found in the collection, show, however, a distinct 

 difference in colour, the somewhat larger one having still re- 

 tained his juvenile dress, described by Boulenger in the 

 paper quoted above, while the other appears in the adult 

 stage with a thin brown network on the lower light parts. 

 The former specimen is a male, the latter probably a female, 

 but on account of the bad state of the specimen 1 am not 

 able to ascertain it. The male one has a rather indistinct 

 oval gland on the thighs, not to be found in the supposed 

 female. Boulenger speaks about a similar gland, which he 

 observed »in some specimens», but does not mention it as a 

 difference between the sexes, which is probably the case. 



The tongue differs rather much in the specimens, the 

 male having a broad hind margin with the two pointed lobes, 

 existing in all species of the genus Råna, far distant from 

 each other and a small third in the space between, while 

 in the other specimen the tongue is oval, becoming narrower 

 behind, causing the two lobes nearly to touch each other in 

 the median line. 



This difference in such an important character as the 

 shape of the tongue seems to be rather peculiar, but may be 

 only individual; in all other respects, however, except the 

 above mentioned differences, due to age and sex, the two 

 specimens agree completely, as will be seen by the following 

 measurements. 



