Birds from Camaroon. 319 



I consider that the last two specimens^ which are much 

 more rufescent in tone and have the sides of the body with 

 the flanks, thighs, and under tail-coverts inclining to fawn- 

 colour, are young birds. They agree with the description of 

 Dr. Reichenow's Calamocichla plebeia (1. c), and this I believe 

 to be the young of Calamocichla poensis, from which I am 

 unable to separate the adult birds found on the River Ja. 



As will be seen above, the wings of the Camaroon birds 

 measure 2"9-3*05 inches, the female 2'8. A Fernando Po 

 bird obtained by Mr. Seimund has the wing 30. 



Sylvia simplex. 



Sylvia simplex Lath. ; Sharpe, Hand-1. B. iv. p. 209 ; 

 Reicben. Vog. Afrikas, iii. p. 649. 

 a. $ ad. Efulen, Dec. 23, 1902. 

 No. 1622. $ ad. River Ja, March 28, 1906. 



Phylloscopus sibilator. 



Phijlloscopus sibilator (Bechst.) ; Sharpe, Hand-1. B. iv. 

 p. 212 ; Reichenow, Vog. Afrikas, iii. p. 645. 



Nos. 1577, 1606. ? ad. River Ja, March 21-26, 1906. 



Nos. 2159. c? ad. ; 2339, 2340. ?; 2345,2367. <S - Bitje, 

 River Ja, Jan. 14 to March 21, 1907. 



It is very interesting to see such a large series of our Willow- 

 Warbler from Camaroon. 



Sylviella batesi, sp. n. 

 Similis S. flaviventri, sed gastrseo pallidiore, sulphureo-flavo, 



linea superciliari albida obsoleta distinguenda. Long. tot. 



3"25 poll., culmen 0*45, alae 1'95, caudse 0*75, tarsi 0'6. 



Nos. 2089-2090. c? ? • Bitje, River Ja, Oct. and Nov. 

 1906. 



The colour of the under surface distinguishes the Camaroon 

 bird from its representative on the Gold Coast, the belly being 

 of a pale sulphur-yellow, much paler than the bright yellow 

 of S. jiaviventris . The fore-neck and chest are greenish grey 

 not olive-yellowish as in S. jiaviventris. 



Sylviella virens. 



Sylviella viretis Sharpe, Hand-1. B. iv. p. 228. 



Sylvietta virens Reichenow, Vog. Afrikas, iii. p. 631. 



