( 69 ) 



233. Thamnophilus s)>. inc. 



Nicare : ? 19. i. 1901. 



La Pricion : ? ? 15. xii. 1900 ; 31. i. 1901. " Irides pale yellowish brown ; 

 upper bill black, lower silvery grey ; feet bluish grey " (E. Aadr6). 



These birds appear to be allied to Tk. luctuosus, the/emaleot which is unknown 

 to us. T//. luctuosus, however, is only known from Lower Amazonia. The ? of 

 Th. aethiops differs considerably. 



234. Thamnophilus cinereoniger Pelz. 



Thamnophilus cinereoniger Pelz., Orn.Bras. (1870) pp. 70, 143 (ex Rio Negro, etc.). 



Munduapo : <?cJ 13, 14, 15, 20, 25. ii., 3, 4. iii., ? jnv. 10. ii., <?<? 9, 13 (bis), 

 14, 15, 16, 18,25. (bis)ii. '99. 



Maipures : 6 S Vi. xii., c? jnv. 9. xii., ¥ 18. xii. '98. 



Altagracia : c? ? 4. ii. '98. 



" Iris sepia brown : feet plumbeous ; bill black, below blackish slate." " Iris 

 dusky grey ; bill black above and below." 



(Nos.9991, 10003, 11406,11460, 11461, 11509, 11880, 11905, 11935,11936, 

 11937, 11946, 11947, 11958, 11959, 11969, 12005, 12028, 12116, 12117, 12118, 

 12171, 12178 Oherrie coll.) 



Berlepsch has compared these skins with typical birds collected by Natterer on 

 the Rio Negro, and has found them agreeing in every respect. 



235. Thamnophilus murinus Scl. & Salv. 



TTinmnophihis murinus Scl. & Salv., P. Z. ti. 1867 p. 756 (ex Natterer's MS. Ilab. Cayenne, 

 Marabitanas, Barra do Rio Negro, Xeberos— we accept Barra do Rio Negro as the typical 

 habitat — ex Natterer). 



Suapure, Caura R. : <S ad. 29. iii. '99 ; "6" juv. (in the plumage of a ¥), 9. iv. 

 ? ? 9, 11. iv. 1900 (S. M. Klages). 



La Pricion, Caura R. : <S 15. xii. 1900 (Andrt?). 



La Union, Caura R. : c? (err. sexed ?) 17. xii. 1900 (Andrt^). 



" Iris brown or dark grey ; feet grey ; maxilla black ; mandible greyish." 



Our specimens agree well with those collected by Natterer. 



236. Thamnophilus naevius (Gm.). 



Lanius naevius Gml., Syst. Nat. i., 1 (1788) p. 308 (ex Lath.— Cayenne). 



Altagracia : i 45. ii., ? ? 4, 5. ii., 27. i. '98. 



Munduapo : 6 8. ii., ? ? 8, 10. ii., ? 10. ii. '99. 



Nericagua : 66 25. iii., 5. iv., ? ? 25, 28. iii., 31. iii. '99. 



Rio Catauapa : cJ ? 25. xi. '98. 



La Pricion : c? c? ? ? February, December (E. Andr^). 



La Union : ¥ 21. xii. 1900 (E. Andrd). 



Snapure : ¥ 22. vi. '99 (Klages). 



" Iris burnt umber, smoke grey, seal." ¥ . " Iris vandyke ; feet cinereous, 

 plumbeous ; bill black above, slate below (slaty grey at base of mandible)." 



(Nos. 9860, 10001,10002, 10021,10022, 11337, 11338, 11872, 11873, 11906, 

 11907, 122.52, 12285, 12341, 12424 Cherrie coll.) 



