898 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxviu. 



I. Acrocephalus. 

 Subgenus . I rntcfjilidliis. 



Arrorephaliis Naumann, Nat. Land.-u. Wass.-Vog. niJrdl. Deutsehl., Nachtr. 



rV, ISll, ]i. 199 (type, AcrocepJialu,^ lucustrlsNa.nrnann = THrrl>iK (irinuliiHirt'ii.'; 



Liiina'us," [ = Sylvia turdoides Meyer '^]). 

 Calariiohrpc Boie, Isis, 1822, p. 552 (type, Si/lriu fnrdoidcs Meyer=7'»77/».s </;•///)(//- 



■luicrux Linnanis). 

 Ifi/dr()<-i)i>.-:icliiti< Kaup, Skizz. Entw.-tTesch. Eur. Thierw., 1829, ]>. 121 (tyi>f, 



Sill rid tiirildidt's Meyer= jTi/rf/n-s- aruiid'nuweiix Linnaeus). 

 Ariii)dlii(u-('i(.s Lksson, Traite d'Orn., 18:)1, ]>. 419 (ty])e, Si/lrid lurdaidrK ^leyer= 



'Iiirdiix iinnidiiiiifc.ii.t Linn«'us). 

 Sadmrid Sklhy, 111. P>rit. Orn., I, 18:^3, \>\>. 19(;, 197 (type, Si/lrid lurddidrs 



Mey('r= Turdiiy. itnmdinucinn^ Liiniieus). 

 .lavcv Rkk'iik\ha(1[, Av. Syst. Nat., 1850, pi. lxi (type, Titrdinf dnindiiidcfns 



Linuams). 



Subgenus Maxcipcld. 



Muscipeta Kocji, Syst. baier. Zool., 18U), p. 1H2 (type, Sijlrhi. pJtnupiiilix Becli- 



ste.m= Motdcilld, sclufuobienus Linnseus ''). 

 Calamodus Kaup, Skizz. Entw.-Gesch. P"ur. Thierw., 1829, ]>. 117 (ty])e, Si/hia 



phragmitts liechstein =3/o^ae///a t^ddniohniiKs Linnteus) . 

 Calamodyta Kait, Skizz. Entw.-Gescli. Eur. Thierw., 1829, \k 118 (type, Sijlrld 



(Kputfica Temininck=*%/rfa puliidicola Vieiliot). 

 CaricicoJa Breiim, Isis, 18.35, i>. 245 (type, Sylvia pal udlcold Vieiliot). 

 Caricicola Bkehm, Namnannia, 1855, p. 284 (type, Sylvld pJmujniitin Beeh.Mtein = 



MotdciJUi >i<-}uenoh!fnufi Linnseus). 



Bill of iiiodenite length; feet not large; secondaries not lengthened, 

 falling short of primaries b}' more than the exposed eulmen; outer- 

 most primary narrow, more or less acuminate, shorter than pi-imar^' 

 coverts, and less than one-third the second primary; second primary 

 longer than the seventh. 



Although at lirst sight there seems to be a great structural dilierehce 

 among some members of this genus as here constituted, this difference 

 lies wholly in the bill, and even here the gap existing between the 

 rather stout turdine beak of AerocephaJus dentoreus^ with its curved 

 culmen, and the shorter, more slender bill of A. schcenohpenus^ with 

 culmen straight except at the tip, is quite perfectly bridged by A. 

 arioulinan'us and A. palustris, together with their related forms. 

 There is, consequ(>ntly , no choice but to place all under the name Ac/'o- 

 cephalm, though two subgenera may with propriety be recognized: 

 Acrocephal'm, to include the Great Heed Warblers — ^1. arimdioiaceHs 



«Syst. Nat., 10th ed., I, 1758, p. 170. 



J'Vog. Liv.-uiid Esthl., 1815, p. 11(3. There seems to l)e little or no reason for 

 not accepting the name arundmaceus Linnjeus for the bird now commonly called 

 Acrocephalus tttrdoides, sinc-e the Linnpean name is of unquestioned pertinency and 

 far earlier date. The species should therefore be known as Acrocephalus arundiuaceus 

 ( Linnaeus ) . 



cThe type of this genus is ordinarily given as ^«?'cZo*>7<'.s( =arundinaceus), but quite 

 certainly in mistake, for the figure of the characteristic ])ill given by Kocli is 

 apparently that of A. schwiiohienus, which is also the lirst species mentioned. 



