90 PTEKOPUS. 



U.S. Niitional Museum, 9 : Pt. aldahrensis, cagrtyaniis {hypomelairus c), 

 enganus {hijpnmclnnus e.), fmumhia, geminorum {hypomelamis g.), lanensis 

 (rampijrics I.), lepidiis {hi/pomclanus I.), niadicus, samo'ensis ; described by 

 Mearns (2), Miller (5), Peale(l), True (1); 



Paris Museum, 8 : Ft. edulis (vampj/nts c), grUeus, insularis, mariatmus 

 (cotyjie in Leyden Masenm), segckelleits/s, tonganus, tuberculatus, vaniJco-rensis ; 

 described by Desmarest (1), E. Geoffroy ^2), Hombrcn & Jacquinot (1), 

 Milne-Edwards (1), Peters (1), Quoy & Gaimard (2) ; 



Genoa Museum, 2: Pt. modiglianil (cotj'pe in British M-xxsenm), papiianus ; 

 described by Peters & Doria, and Thomas ; 



and one each in the Oopenliagen (Pf. giganfeiis, Briinnich), Calcutta (P/. 

 melaiioUis, Blyth), ?Zi-ka-wei (Pf. h7jpomdanm macassarictis, Heude), Sydney 

 (P(. epulariits, Ramsay), and Cambridge (Massachusetts) Museums {Pt. ariel. 

 G. M. Allen) ; one is presumably in private possession {Pt. ti/tleri) ; while fi^e 

 are apparently not in existence [P/. niger. poliocephaliis, rufag, subitigcr, toniesi 

 {hypomelamis t.)\. 



Synopsis of Groups and Species *. 



A. Posterior basal ledges of large premolars 

 distinct. 

 I. >Skull and dentition unmodified Pteropine f. 

 Tibia generally naked above J. 

 a. Dentition not unusually heavy. Size 

 moderate or.«mall: forearm 94-171 mm. 

 a'. Interfemoral scarcely developed in centre, 

 ft'-. Ears moderate or short, nt)t narrowly 

 pointed. 

 u\ Colour varying, but never blackish 

 above and beneath with sharply con- 

 trasting light yellowish mantle .... A. Pt. hypomelamu.s 

 «'. Cheek-teeth of normal size: breadth group, p. 98. 



of p' about one- third that of palate 

 between p*-p*. 

 a'. Tibia naked above. 

 «". Skull larger : total length 61 --'j- 

 68v mm. 

 a'. Fur shorter : 10-14 ram. on 

 back. Forearm 121-146 inni. 

 (Mergui Archip. to New [p. 101. 



Guinea) 1. Pf. hypoiudunus, 



b~. Fur longer: 18-19 ram. on bark. 

 (Blackish above and beneath 

 with pale mantle and centre of 

 breast.) Forearm 1;39 mm. 

 (Andamans) 6. Pt. satynts, p. 142. 



* The geographical review of the species and subspecies (pp. 81-8(5) 

 and the list of the species arranged according to the lengths of forearms 

 (pp. 97-98) will often greatly facilitate the identification of the specimens to 

 be determined. 



t Except the Mascarene Pf. suhniger, in which the cheek-teeth are small 

 and unusually narrow, and the skull modified accordingly. 



* The tibia is naked above in all species of this secli(ni, except in seven 

 peripheral species of the Pf. hypomelanus group, viz., Pf. solomoiiis (Central 

 Solomon Is.), firunneiis (E. Australia), ornatus (New Caledonia), ai/rafns 

 (Loyalty Is.), drtiiymof/iif: (Liu-Kius), forii'osits (Formosa), and ■•'iifii//'/cr (Mas- 

 careues), and in the single Mascarene species of the Pt. ni/iis group (Pi. iiigcr). 



