PTEROniS INSULARIS. 297 



this bright pectoral patch varies greatly individuall)-, but in none 

 is it wanting ; in one specimen it occupies only the middle of the 

 breast, being little larger than an almond, in others it extends over 

 the whole of the breast, excluding flanks ; in one specimen the 

 bright huffy colour is darkened to tawny cinnamon. Belly, anal 

 region, sides of breast (in specimens with small pectoral patch), 

 and flanks similar to back or dark vandyck-brown, in any case 

 rather thinly sprinkled with long, pale greyish or bufl"y hairs. — 

 Mantle varying from golden buff'y (palest extreme) to deep tawny, 

 sometimes interrupted in median line by a stripe of dark brown 

 extending forward from back to occiput. Bright colour of mantle 

 confined to apical half of hairs, basal half seal-brown. Sides of 

 neck similar to mantle, varying from ochraceous-buflfy to deep 

 tawny, with extreme base of hairs seal-brown. In females (males 

 not examined) a thin tuft of soft, bright yellowish-buffy glandular 

 hairs on each side of neck, not much differing in colour from 

 surrounding fur. — Crown mixed huffy and dark brown. Sides of 

 face, chin, and throat blackish, thinly sprinkled with huffy or 

 greyish hairs. 



Measurements. On pp. 290, 300, 



Specimens examined. Seven, in the collections of the Paris 

 (two, cotypcs of species. Ruck), Berlin (one. Ruck, no. 5698), 

 U.S. National (two, Uala I., Ruck group, 151563, 151564), and 

 British Museums (two, Ruck) ; photographs of skull and dentition 

 of type of Pt. laniyer. 



liange. Ruck group, Central Caroline Islands : Ruck and Uala*. 



Cotypes in the Paris Museum. 



Pteropus insularis, Hombrou & Jacquinot ; 1842. — Type locality', 

 Ruck (Hogoleu). Cotypes, two adult mounted skins, nos. 53 A and 

 53 B ; eotype 53 A is the original of Hombrou and Jacquinot's pi. v. 

 (coloured figures of animal, front and back views) ; the skull of 

 this S])ecimen, which is preserved in the Museum d'anatomie 

 comparee, Paris, and marked A. 6770, is the original of Hombrou 

 and Jacquinot's figures of the skull in lateral, ujiper, lower, and 

 front views ; the skull of eotype 53 B is in situ. — By subsequent 

 authors Pi. insularis has alternately been considered identical with 

 Pt. heraudreni, Q,. & G., i. e., Pt. mariannvs, Dcsm. (Peters, 1867. 

 Z. s. c), or a variety of that species (Dobson, 1878, ?. s. c.\ but of 

 the six specimens registered by Dobson under the heading of his 

 variety a, none is Pt. insularis), or a distinct species (Peters, 1869 

 and 1883 ; Oustalet, 1895 ; jMatschie, 1899), but even in the last 

 case it has constantly been placed near Pt. mariannus, a species 

 with which it in reality has no closer affinities. 



Pleropus lunicjer, H. Allen; 1890. — Original description based 

 on two specimens in Ward's Natural History Establishment, 

 Rochester, New York, and stated to have come from the " Samoa 

 Islands." One eotype is now in the U.S. National Museum (skull 



* I^'ila or Uola, " a volcanic island in the alollic lacjoon of t lie Ruck group " 

 (Tn. M. W. I>yoii, in litt.), mrt to be confused with Ualan (Kiisbai), Eastern 

 Carolines. 



