ROUSETTUS AKABICUS. '.Hi 



3. Rousettus arabicus, And. ^- dc WInt. 



Cyiionycteris iimploxicaudata {tii'c Genff.), Dobson, Oct. Chir. Ttid. 



Mils. p. i' (pt.) (1874: Kisliin I.): Blanforrl, E. Persui, ii. p. Kl 



(1S70: Kislmi I.); Itoh.vm, Mon. Asiat. Chir. p. 190 (])t.) 



(187(3: ki-ihiii I.); J. Andfrsim, Cat. Mamm. Ind. Mus. i. 



p. 104 (pt.) (1881: Kl.sluiil.): Murmii, Vi-rt. Z<i„l. Sind. \->. :i 



(1S84: Miikklre Hill.-, Siud); Trouessait, Cut. Mamm. i. p. 81 



(pt,)(1897: Kishiu I.). 

 Cyiio])terii9 (Cvnoiiycteris) amplexicaiid.itii.'',7Voz^e.s.s«;-/, lirv. Sf Maq. 



^Zool. (3) vi/p. -iC) i (pt.) (1878: Per.-sian Gulf). 

 Xanthuipyia auiplexicaiiilata, lilanford, Fnuna Brit. Lid., Mamm. 



pt. ii. p. 2U2 (pt.; (1891; Ki.shiii; Karachi); Thomas, P. Z. S. 



1894, p. 44i) (-MiHcat) ; Matschic, Me/ackiroptera, p. 67 (pt.) 



(1899). 

 RousHttii.s amiilexicaudatii.'^, Thomas, P. Z. .S'. 1900, p. 98 (Aden) ; 



Troue.smrt, Cut. Mamm., Viippl. p. 00 (pt.) (1904 : Aden, 



^[ll8cat. Iv.i.slini). 

 XaiUiiarpvia aig-\ptiaca [nee Geoff'.), Yerlurij Sj- Thomas, P. Z. 8. 



]S9.'5, p. .•')4o (Aden). 

 Xanthai'])via collavis {nee III.), Matschie, Meqaehiroptera, p. 66 



(pt.) (1899: Aden), 

 lloiiseitiis arabicus, Anderson ^~ dc Winton, Zoo}.. Ei/ypt, Mamm. 



pp. 8(i, 88, 89-90 (1902: Aden); K. Andersen j Ann. i^- Mai/. 



N. H. (7) xix. p. 507 (1907). 



Diagnosis. — Similar to It. IracM, but with shorter and lower 

 ro^itriuu, narrower ear-tips, shorter tibia and foot. Forearm S7- 

 96 mm. 



Details. — The skull of R. arabicus averaaes in ever}' respect 

 smaller than in R. leaclii: total length in fully adult individuals 

 138 7- 41 "8 mm., against 40'o-43'S in R. leachi; rostrum markedly 

 shorter and slenderer : length from front of orbit to tip of nasals 

 ];j-18'6 mm., against 13'8-15'2 in R. leachi. Teeth as in 

 R. leachi, but smaller, and molars narrower. Palate- ridges some- 

 times 4-f-3-f 1, as in R. leachi, but very ofton there is, behind the 

 6th ridge, a more or less distinct additional ridiie, the extremities 

 of which are either in direct connection with or terminating very 

 closely behind thoseof the 6th ridge, giving the formula 4 -|- 4 -f 1, as 

 in R. cpi/i/ptiaciis. 



Inner margin of ear-conch neaidy straight, tip of ear much 

 narrower than in R. leachi • tibia and foot noticcabl}' shorter. 

 Distribution and colour of fur as in R. ii'i/i/ptiacus. 



From R. o'ljijittiacas this species is readily distinguished bj" its 

 much smaller skull, shorter and slenderer muzzle, much narrower 

 ear-tips, shorter wdngs, and shorter tibia and foot. 



Measurements. On p. 3-1. 



Range. From Arabia (Aden, Muscat) to Sind (Karachi). 



Ti/pe in collection. 



Remarks. — R. arahicus is more closely related to the S. African 

 R. leachi than to its geographical neighbour R. ar/if/diacus. The 

 exact limits of its area (to the west, north, and north-east) arc still 

 unknown ; it is not unlikely tliat it extends into Syria and 

 ralestine. 



