(418) 



2 cm., and all the npper tail-coverts, the longest of which are grey in all the other 

 forms, are pure white, the alar speculum to the primaries is very large, the tips to 

 the secondaries pure white (in fresh plumage). This form seems to be a more 

 constant one than hac/ius, and is probably resident in certain parts of North-eastern 

 Africa, but observations about its distribution and liabits are wanted I 



Messrs. Hemjjrich and Ehrenberg mention also a " var. dorso toto atro " from 

 Southern Arabia. This may possibly be another subspecies ! 



'■{ 



Key to the supposed subspecies of Lanius senator. 



White alar speculum to base of outer primaries : 2. 



No white speculum to base of outer primaries : L. s. badiiia. 



,, j Base of central rectrices pure white : L. s. paradoxus. 

 \ Base of central rectrices black : 3. 



'•{ 



Underside without or with very little rusty-buif : L. s. senator. 

 Underside rust^-buft' : L. s. pectoralis. 



108. Telephonus senegalus (L.). 

 S ? Gambaga, 27. 8. and 18. ». IS'JS. " Iris grey." 



109. Laniarius barbarus (L.). 

 i i Gambaga, February and November 1898. " Iris brown." 



110. Malaconotus poliocephalus (Licht.). 

 S S Gambaga, January and December 1898. " Iris yellow." 



111. Corvinella corvina (Shaw). 

 iS Gambaga, February 1898. 



112. Dryoscopus gambensis (Licht.). 

 3 ? Gambaga, March, July, June and January 1898. 



113. Nilaus afer (Lath.). 

 ii Gambaga, August 1898. 



114. Melaenornis edolioides (Swains.). 

 Adnlt, Gambaga, January and July, young in July 1898. 



115. Prionops plumatus (Shaw). 



(J? Gambaga, 20. 2. and 10. 12. 1898. "Iris and skin round eye yellow, 

 feet pink." 



