164 Geo. E. Mason : Fruit-eating Bats. [Vol. II, 



throat and under parts deep black ; posterior back black, the fur 

 closely adpressed, 40 mm. broad at the narrowest parts; muzzle 

 black, sparingly covered with hair ; mantle conspicuous and well de- 

 fined, a dark canary, changing to orange at the margins and weakly 

 developed orange-coloured tufts on shoulder glands. Fore-limbs 

 and membranes nearly naked above, a few hairs only extending 

 along the upper side of the humerus and forearm ; upper and pos- 

 terior sides of thighs very furry; lower legs naked. Below, the fur 

 sparingly covers the antebrachial membrane, the humerus, femur, 

 and the wing-membrane internal to them, and also passes along the 

 outer side of the forearms in a narrow band of weakly-developed 

 hair. The uropatagium membrane is well developed but entirely 

 concealed by the fur between the knees and body. 



The general characters of the teeth are the same as in Pteropus 

 melanotus, — strong and heavy, 'with well-developed basal cusps. 

 Anterior upper premolar minute, other premolars produced horizon- 

 tally, their length equal to once-and-a-half their breadth. Last 

 molars above and below large and well developed, above more than 

 one-half and below scarcely one-half of the penultimate molars. 

 Anterior lower premolar of equal size to last molar, separated from 

 the canine and next premolar by diastemata each equal to its own 

 diameter. 



Skull. — Greatest length, 70 mm. ; condylobasal length, 63 ; 

 basilar length, 61; median palate length, 37; palatal breadth 

 between anterior molars, 13 ; zygomata breadth, 36; least interor- 

 bital breadth, I0"5 ; breadth between tips of postorbical processes, 

 28; greatest breadth of brain case above roots of zygomata, 23'8; 

 greatest depth of brain case, 18; occipital depth, 12 ; depth of ros- 

 trum at middle of diastema, 10; mandible, 58; maxillary tooth 

 row exclusive of incisors (alveoli), 28; mandibular tooth row exclu- 

 sive of incisors (alveoli), 31. 



The dimensions of this specimen will be found in the table of 

 measurements. 



An old female from the type locality is intensely black through- 

 out, the head inclined to greyish, and the mantle only very faintly 

 distinguishable ; with other specimens it is more conspicuous, but 

 in no case so strong in colour as the males. The individual varia- 

 tion in a series is very great, scarcely any two being alike ; a very 

 young example, with head and body only 140 mm., shows the 

 bright collar very clearly, which is produced and completely encir- 

 cles the throat. 



A skin in my collection, from Little Jolly Boy Island, that was 

 collected by Hume in 1873 and referred to PL mcobaricus , belongs 

 to the present species. 



