418 Rev. H. B. Tristram on the 



seems partially to take the place of the Spectacled Warbler. I 

 have seen it in localities where I should not have expected to 

 find its congener, on the great plains where there w^ere no shrubs 

 or plants. It differs from the former in the colour of the top of 

 the head, which is rufous instead of ash colour, and in the throat, 

 neck, breast, and belly, which are of a uniform pale sand-colour, 

 while the Spectacled, besides its whiter chin and dark throat, has 

 a rich vinous tint down the whole of its flanks. Similar as the 

 two birds are in winter dress, 1 can feel no hesitation as to the 

 distinctness of these species, having frequently obtained both in 

 neighbouring or the same localities at the same time of the year. 

 I was unfortunately unable to visit the haunts of S. deserticola 

 in the breeding season. 



55. Melizophilus provincialis. (Dartford Warbler.) 

 Abundant in winter in the dayats, but never appi-oaching the 



oases or the habitations of man. I do not believe that it is 

 sedentary in the Sahara, but retires to the mountains to breed. 

 I have taken several nests in the Atlas in the months of May 

 and June. 



56. Phylloscopus trochilus. (Willow Wren.) 



57. Phylloscopus rufus. (Chiffchaif.) 



58. Phylloscopus bonellti. (Bonelli's Warbler.) 

 Abundant in the oases in winter, but retiring northwards at 



the end of February. The Chiflfchaff especially assembles in 

 thousands in the palm groves of El' Aghouat. The Arab name 

 for all three species is " Millil." 



59. Cettia sericea. (Cetti's Warbler.) 



60. HipPOLAis polyglotta. (Melodious Willow Wren.) 



61. HippOLAis PALLIDA, Gcrbc. (Pale Warbler.) 



Is not this identical with Sylvia eldica of Lindermayer ? It 

 is found in the marshes about Tuggurt in considerable abun- 

 dance, and I have taken many nests south of the Atlas. 



62. Calamoherpe turdoides. (Great Sedge W^arbler.) 



63. LusciNiopsis sAVii. (Savi's Warbler.) 



The former seen and heard, the latter heard, frequently du- 



