618 MR. R. B. SHARPE ON THE [Nov. 17, 



Compared with C. rvfula, the measurements are as follows : — 



Wing, culm. tarsus. 



in. in. in. 



C.rufula 6 3-3-3-5 0'85 1-0-1*1 



C. garrula 6 3-3-3*7 0-8-0-9 1-1-1-35 



C.rufula 2 3-0-3-25 07 -075 1-0 



C. garrula ? 3"0-3'25 0*65-0*7 1*0-1*1 



The measurements of the two species, therefore, are not so very 

 different, and they can only be separated by the colour. This seems 

 to be very constant; and" as I have the species before me in all 

 plumages, I reiterate the distinctness of these two Larks. 



Hab. "The northern parts of the colony" (Smith) ; Colesberg 

 (Ortlepp); Port Elizabeth (Ortlepp) ; Natal (Wahlberg). 



Specimens examined. 

 a, <$ ad. South Africa (Sir A. Smith, type of species), b, £ ad. 



South Africa (Sir A. Smith), c, d ad. South Africa. 



E mus. Ii. B. S. :—a, ? ad. Colesberg (Ortlepp). b, c, 6- Port 

 Elizabeth, June 5 and August 30, 1869^ (Ortlepp). d, <3 ad. In- 

 terior of Natal, May 9, 1842 (JVahlberg). 



3. Certhilauda rtjfui.a. 



Anthus rvfulus, VieHl. N. Diet. xxvi. p. 494 (1818); id. Gal. 

 Ois. ii. pi. clxi. (1825) ; Bp. C. R. xxxviii. p. 05 (1854). 



Certhilauda albofasciata, Lafr. Mag. de Zool. 1S3G, Ois. pi. 58 ; 

 Gray, Gen. B. ii. p. 383(1844). 



Aleemon albofasciata, Licht. Nomencl. p. 39 (1S54). 



Certhilauda garrula, Ayres, Ibis, 1869, p. 295 et 1871, p. 268. 



Certhilauda rufula, Sharpe. Cat. Afr. B. p. 71 (1871); Gurney 

 in Anderss. B. Dam. Ld. p. 201 (1872). 



Adult male. Above bright sandy rufous, with narrow and indistinct 

 brown centres to the feathers, many of which are also margined 

 with buffv white in a more or less conspicuous manner ; the head of 

 the same "rufous as the back, with slight fulvous margins and small 

 dark brown centres to the feathers ; lores and a very indistinct eye- 

 brow buffy white ; ear-coverts uniform bright sandy rufous ; cheeks 

 buffy white, with a few tiny spots of brown ; quills sandy brown, 

 with" white margins to the feathers, which are all dark brown in the 

 centre, the greater coverts externally inclining to greyish ; quills 

 ashy brown, the primaries tipped with whitish, the secondaries 

 darker, externally margined with sandy rufous inclining to buffy 

 white towards the tips of the feathers ; rump and upper tail-coverts 

 nearly uniform rufous, the long plumes of the latter dark brown in 

 the centre and narrowly tipped with whitish ; tail blackish, with a 

 large spot of white at the tip of all the feathers except the two centre 

 ones, which are rufous, more or less marked down the centre with 

 greyish brown, all the feathers more or less rufous towards the base, 

 this colour sometimes extending for half the feather ; the external 



