286 PTEROPTTS SAMOEXSTS. 



longitudinal ridge of tooth, and showing a distinct tendency to 

 extend forward for some distance as an obsolescent basal rim on 

 lingual face of tooth; in three skulls (B. M. 93.11.29.1; U.S. 

 Nat. Mus. 22562 and 37862, cotypes of species) this forwardly 

 extending lingual rim is fairly distinct, though narrow and much less 

 differentiated than in Ft. anctianus ; in three skulls (B.M. 3.8.27.1 

 and9. 1.4.2; U.S. N. M. 37860, cotype) it is either indistinct (two) or 

 indetectable (the third). Posterior ledge of m^ short, but generally 

 distinctly marked off from tooth both externally and internally, 

 nij subequal to i^. 



Ears. — Short, half-exposed, falling short of hinder corner of eye 

 by a space of about 11 mm. when laid forward. Inner margin 

 convex from base to tip; outer margin flatly convex in lower two- 

 thirds, flatly concave in upper third ; tip rounded off. Naked 

 posteriorly except at base. 



Wings. — Membranes arising about 25 ram. apart from sides of 

 back. 



J)ii«-/fmoraZ.— Undeveloped in centre. 



Fur. — Longer than in Pt. natvaiensis, particularly on underside 

 of body : about 18 mm. at middle of back, 20 at middle of mantle, 

 24 at middle of belly. Directed backward, but not closely ad- 

 pressed on back. Least width of furred area of back about 45 mm. 



Above, a narrow line of adpressed hairs along upperside of humerus. 

 Elbow and base of forearm naked ; a narrow line of rather long, 

 very thinly spread, adpressed hairs commencing some distance in 

 front of elbow and extending forward along upperside of forearm 

 for about 35 mm. Proximal two-thirds of tibia hairy, thickly 

 along inner side, thinly along median line of upper surface. 

 Beneath, antebrachial membrane, lateral membrane along outer 

 hide of forearm to carpal joint, and between humerus and femur 

 clothed with woolly hairs. Underside of tibia clothed for proximal 

 half or third. 



Colotir. — Ad. skin, teeth slightly worn, Samoa Is., 93.11.29.1. 

 Back almost seal-brown, gradually lightening to vandyck-brown 

 on rump, slightly and inconspicuously sprinkled with greyish- 

 white hairs. — Centre of breast and belly dark vandyck-brown, 

 shading to more typical vandyck-brown in anal region ; sides of 

 lireast and belly, including flanks, cinnamon-russet, thickly sprinkled 

 with longer, coarse, huffy' or buffy-grey hairs. — Mantle tawny, 

 becoming darker (tinged with russet) on sides of neck ; foreneck 

 dark brownish mixed with tawny hairs, the general effect almost 

 similar to that of sides of breast. Base of hairs of mantle and sides 

 of neck seal-brown.- — Tawny colour of mantle extending to occiput, 

 lightening to ochraceous-buffy on crown. Interocular space and 

 sides of face mixed bufEy, greyish, and blackish ; chin and throat 

 blackish, mixed with pale greyish and buffy hairs. 



A second skin ((S imm., Upolu, April, 3.8.27.1) differs from 

 the above in the paler, more buffy-russet, tinge of the breast and 

 flanks, paler mantle, and much more blackish throat. 



A very young (scarcely half-grown) female is seal-brown, thickly 



