Mr, (). Thomas on a new Ptcropus. 293 



base of each elytron. It also departs somewhat from the 

 cliaracters of the more tyi)ical mciuhers of the genus in 

 having the disk of the prothorax smooth ; but in almost all 

 its remaining eharacters, especially in the form of the elytra 

 and the distriliution of the spinou.^ tubercles on the sides and 

 disk of the elytra (the basal hump excepted), it has the closest 

 relation witli P. scabrosus, Oliv. 



XXX IT. — Didf/noftis of a nnii Pteropus from the Admiralty 

 Mamh. By Oldfiei.d Thomas. 



Pteropus admiralitatum^ sp. n. 



Most closely allied to Pt. lu/pomelanus, Temm., but distin- 

 guished by its smaller size, much smaller ears, uniformly 

 coloured chest and abdomen, and woollier fur ; crown pale grey 

 (" olive grey " of Ridgway *) ; nape fulvous ('' cinnamon ") ; 

 back brown (" Trout's brown "), mixed with whitish. Below, 

 the neck shows an indistinct fulvous collar ; but all the rest 

 of the under surface, the chin, throat, abdomen, and the sides 

 of body are a uniform brown (between " sepia" and " clove- 

 brown ''), thickly mixed with silvery white or yellowish hairs. 

 In Pt. hypomelanus the centre of the abdomen is always 

 lighter than the sides of the body. 



Skull and teeth as in Pt. hypomelanus^ except for their 

 smaller size. 



Dimensions of the type (skin B.M. 80. 11. 24. 4) :— 



Head and body (c.) 180 millim. ; forearm 121 ( = 4*75 in.) ; 

 ear 17 5. 



The ear of a spirit-specimen measures 19 millim. (from 

 notch) ; and the forearms of the three other specimens in the 

 collection are 126, 120, and 118 respectively in length. 



Hah, Admiralty Islands. Coll. Il.iAI.S. ' Cludlenger.' 



Four specimens of this species were obtained in March 

 1875. 



* * Nomenclature of Colours," 1886. Tlie extreme difficulty of matching 

 tbe uniform colours of a colour-plate and the grizzled and broken colours 

 of an animal are so great that these determinations must be looked upon 

 as merely approximate ; but it would nevertheless be of great help to 

 other workers if all describers would use some such standard of colours 

 as is provided by Ridgway's valuable work. 



