KIDOLON DOPREANUM. / 



the lengthening' of m^, the reduction of m^, the considerably larger 

 dimensions, and the more pronounced sexual differentiation m 

 colour. 



The three species are closely interrelated. E. dupreanum, from 

 Madagascar, witli its relatively longer rostrum and less modified 

 fur structure, is apparently the least specialized form. E. sabcpum, 

 from S. \V. Arabia, is a small-skulled and broad-toothed represen- 

 tative of the African E. /lefvum. 



Nomenclature.— In 1810 (Ann. Mus. d'Hist. Nat. xv. pp. 90-98), 

 E. Geoffroy divided the genus Ptcrojms into three sections, viz., 

 " Roussettes sans queue " (Pt. e(htlis, edwardsi, vulgaris, ruhricoUis, 

 griseus), " Iloussettes a queue " (Pt. stramineas, cfgyptiacus, amplexi- 

 caudalus, marginatus, minimus!), and " Roussettes a ailes sur le dos " 

 (Pt. paJiatus). Five years later (1815, l.s.c), Kafinesque raised 

 these sections to the rank oP distinct genera, restricting the genus 

 Pteropns to the species of Geoffrey's first section, i)roposing the name 

 Eidolon for the second, and Pteronotus for the third section. 

 Pteropus stramineus, Geoff, (i. e. VespertiJio vampyras helvus, Kerr), 

 as being the earliest known of the tive species included by Geoffroj- 

 in the section " Roussettes a queue," may be fixed as the type 

 species of Eidolon, Raf. (Of. K. Andersen, Ann. & Mag. N. R. (8) 

 i. p. 432 ; 1 May, 1908.) 



Sgnopsin of the Species- 



a. Rostrum relatively longer : front of orbit 



to tip of nasals equalling or exceeding 

 maxillary tooth-row; fur longer, moii 

 ■woolly, not closely adpressed ; colour 

 darker ; forearm 1'27-131 mm. (Mada- 

 gascar) \. E. dupreanum, p. 7. 



b. Rostrum relatively shorter : front of orbit 



to tip of nasals less than maxillary tooth- 

 row ; fur very short, closely adpressed ; 

 colour lighter. 

 a'. Skull larger: total length .54:-o-62-2 mm. ; 



tooth-rows longer : c-m''' 21-23'8 ; molars 



narrower; forearm 117"5-132. (African 



continent) 2. is. /teiuiim, p. 8. 



b'. Skull smaller : total length 51'6-5o mm. ; 



tooth-rows shorter: c-m* 19 2-208; 



molars broader; forearm 114-127. (S.W. 



Arabia) S. E. sabf^um, p. 1 o. 



1. Eidolon dupreanum, Schl. tj- Full. 



CynomjcUris dapreana, Dobson, Cat. Chir. B. 31. p. '/8. 



Cvnonycteris stramineus [nee Geoff.), Peters, MB. Akad. Berlin, 



'186H, p. 88o (Nossi B6). 

 Pteropus dupreanus, Schlegel Sf Pollen, P. Z. S. 1866, p. 410 (N.W. 

 Madagascar) ; iid., in Pollen ^- v. Dam,Rech. I'aune Madagascar, 

 ii. pp. 17, 172 (1868: X.W. Madagascar). 



