NO. 1411. BIRDS FROM MOUNT KILIMANJARO— OBERHOLSER. 899. 



and its allies; and MuM-lpcfn^ for ^1. se/io'/tohcrnNs and ^1. aqiKitfcus^ 

 which represent the extreme dift'erentiation, together with all the other 

 forms, such as A. iMlastrls and A. dreperus^ not referable to Tatare 

 or to either of the two new genera proposed below. 



The current names of two other species of Acrocephalus appear to 

 require change. The Aquatic Warl)ler is at present usually called 

 Acrocephalus aqtiattcus (Temminck);" but an examination of the work 

 in which this appears at once shows that Temminck here does not pro- 

 pose a new T ime, but mei'ely refers his bird to the Motacilla (ujiKdica 

 of Gmelin. Therefore if the term (Kfiuit !<■((, be used at all for this 

 warbler it uuist be credited to (hnelin; but, since Gmelitfs description 

 is so very doubtfully identifial)le, it is probably best to leave it alto- 

 gether out of consideration. Following this course, and taking up 

 the tirst untainted name, the designation of this bird becomes Acr<>- 

 ccpJialuK jxdudlcola Vieillot.^' 



The name of the bird now known as Acrocepludu.s iiiacrorhijuclnix 

 Hume,"' is rt>ndered untenable by reason of C<(lain,<)Jie/'pe macr<»rh,i/nc/i<f 

 von Midler,' a synonym of AcrocephalKs sfcntoreiis^ so long as the 

 species is retained in the geims Acr(>ccj>h((J uk^ and since this api)ears 

 to be its proper position it may be called 



Acrocephalus orinus, iinv name. 



There seems to be no doubt of the sul)specitic relationship of Acro- 

 ceplialus araiidinacewi orlentalh (Tenuninck and Schlegel) with Acro- 

 cephalus arundhiaceus (Linnaeus), since there is perfect intergradation 

 between the two; but Acrocepludus derdoreus (Hemprich and Ehren- 

 berg) appears on the other hand to be a separate species, for aside 

 from other ditt'erences of proportion, that of the primari(\s is. in a 

 large series of specimens, constantly distinctive. 



Th(> species of this genus are as follows: 



(Subgenu.s Acrocephalus. ) 



Acrocephal iiii inexpectatus Berezowski and Biauchi. 

 Aeroceiihalus slenloreuf: (Hemprich and Ehrenberj^). 

 AcrocephahiH an mill n ace ii a arund'macevs (Linnseus). 



(Sul)genns Mnxeipeta.) 



Acrorephalux paJuf/rls ( Bech8tein ) . 



Acroeephala.s streperus (V^ieillot). 



Acroeeplialus obaolelus (Heuglin). 



Acrocephalus arundlnaceus orientalis (Temminck and Schlegel). 



Acrocephalus dumelorum dumelorum Blyth. 



« »S'///('/a a^wa/vV:a Temminck, Man. d'Orn., 1815, p. 181. 



b Syst. Nat, I, ii, 1788, p. 953. 



'■'Si/lvia paludicola Vieillot, Nouv. Diet. d'Hist. Nat., XI, 1817, p. 202 (Lorraine, 

 (irermany). 



'/ Phyl/opneusle macrorJiyncha Hnme, Ibis, 1869, p. 357 (Rampnr, Sutlej Valley, 

 Himalaya Mountains, northwestern India). 



(' Odaiiioherpe rnacrorltynclia von Jliiller, Beitr. Ornith. Africus, 1853, pi. ix (Fua, 

 Lower Egypt). 



