244 lANlIDiE. 



This species differs from L. sethohmi principally by its smaller 

 size, and bj- the much larger amount of white on the inner web of 

 the secondaries. It is only known from a single example in the 

 collection of the Philadelphia Academy, " labelled as having been 

 collected in California by Dr. Gambel."' 



11. Lanius algeriensis. 



Lanius algeriensis, Less. Rev. Zool. 1839, p. 134; Bp. C. A. i. p. 363 

 (1850) ; Bp. in Cat. Parzud. 1856, p. 19 ; Locke, Cat. Mamm. et 

 Ois. AU/cr. p. 86 ; id. Expl. Sci. Alyer., Ois. ii. p. 47 ; Heuyl. Orn. 

 N.O.-Afr. i. p. 479, note ; Dresser, B. Eur. iii. pi. 148, p. 391 

 (1873).' 



Lanius meridionalis, Malh. Cat. Rais. Ois. de V Alger, p. 9 (1846, nee 

 Tenim.). 



Euneoctonus algeriensis, Strickl. Ann. ^ Mag. N. H. 1852, p. 345 ; 

 Bp. Rev. Zool. 1853, p. 293. 



Collyrio algeriensis, Grai/, Hand-l. B. i. p. 390, no. 5930. 



Adult male. General colour above, including the lower back and 

 upper tail-coverts, dark slaty grey ; crown of the head, and occiput 

 in old males, still darker, the line of demarcation being rather well 

 marked ; scapulars paler grey, and with large white tips, especially 

 to the outer web ; lesser wing-coverts grey ; all the rest of the 

 wing-coverts and the bastard wing deep black ; basal half of both 

 the inner and outer web of the primary quills pure white, forming 

 a very distinct speculum, the terminal half black with very narrow 

 white tips ; secondaries entirely black, except the tips and the 

 margin of the inner web, which are white ; tail black, blackish 

 grey at the base, never white ; the two central pairs of tail-feathers 

 almost entirely black, just tipped with white, this colour predomi- 

 nating towards the external feathers so much that the terminal half 

 of the outer pair is more white than brownish black ; a narrow line 

 over the forehead, loral region, and the ear-coverts jet-black; chin 

 and throat white ; rest of under surface and flanks grey, paler along 

 the middle line of the body and on the under tail-coverts ; edge of 

 wing white ; under wing-coverts dull white, but like the axillaries 

 mottled with greyish ; bill and feet black. 



The sexes are exactly alike in plumage. 



This bird is closely allied to L. meridionalis from Spain; but can 

 be easily distinguished from the latter species, as it has neither the 

 white superciliary stripe nor the strong pink tinge on the under 

 surface of the body. 



(S . Total length 9-3 inches, culmen 0-75, wing 4-25, tail 4-75, 

 tarsus 1-25. 



2 . Total length 9 inches, culmen 0-8, wing 4, tail 4-25, tarsus 1-2. 



Ilab. From Morocco to Tunis. 



