( 153 ) 



c?c? ad. : al. T3|— 72 ; cand. 01^—58 ; cnlm. 2U— 19f ; tars. 24J— 23J mm. 



? ? ad. : al. 73— 71J ; 04J— 58* ; culm. 21—20^- ; 24f— 24J mm. 



No8. lU;j, 106, 115, 380, 406,407, 408, 429, 430, 490, 692. 



Male specimens from British Guiana and the Orinoco delta (Orinoco make) 

 are in no way different. Specimens from Pto. Cabello have the back of a much 

 clearer rufous brown (instead of greyish brown with blackish marks). Specimens 

 from the Middle Orinoco and from the llio Branco are somewhat intermediate, 

 but agree best with the Pto. Cabello birds. Nevertheless there is much variation 

 iu the shade of the brown back. 



[Cayenne (Sclater collection in Mas. Brit., Mus. Hein., Mus. Vindob. ex Becoeur, 

 Mas. H. V. B., coll. Deplanches (^fide Bp.).] 



236. Thamnophilus doliatus (Linn.). 



Laniiis doliatus Linne, Mas. Ad. Frid. ii. Pmdr. (1704) p. 12 loc. ignot. (hab. typ. subst. Cayenne 

 aut. Berlepsch & Hartert). 



Cayenne : 4 c?(? ad. and 3 cJc? jrs., October 28, 29 (two) jr., 31, November 1 

 (c? jr.), 3 (c? jrs.), 4 ; 4 ? ? ad., October 28, 31, November 3 (two), 1902. 



Roche-Marie, Cayenne: 1 S ad., November 10, 1 ? ad., November 11, 1902. 



" Iris primrose yellow " (twice " lemon yellow "), " feet plumbeous," " bill 

 above black, below slate (' greyish ')," iu ? " yellowish." 



c?<? ad. : al. 79^73; cand. 68^—62 ; culm. 21f— 20 ; tars. 26|— 25| mm. 



? ? ad. : al. 76—72 ; cand. 68— 63J; culm. 20J— 18| ; tars. 26f— 25i mm. 



Nos. 356, 371, 377, 378, 409, 410, 428, 483, 484, 485, 524, 055,691. 



[Cayenne (Mus. Vindob. ex Becoeur, Mus. Hein., Mus. H. v. B., coll. 

 Deplanches (Jide Bp.).] 



Although not much different, Th. d. f rater cuius Berl. & Hart, from Venezuela 

 shows much more white on the uuder-parts and less white in the crown. 



[237. Pyg-optila stellaris (Spix). 



Thatmiojihilus stellaris Spix, Av. Bras. ii. (1825) p. 27. tabl. xxxvi. fig. 2 (typ. ex Prov. Par.1— oliin 



in Mus. Monac). 

 Pygoptila macidijienriis (Scl.). 



[Cayenne (Mus. Hein.).] 



238. Dysithamniis ardesiacus saturninus (Pelz.).* 



[Dysitltamnus ardesiacus Sclater et Salvin, P. Z. S. 18G7. p. 75(3 (typ. ex Rio Napo — in Mus. Brit.).] 

 Thamnophilus saturniuus Pelzeln (ex Natterer), ZurOrii. Bras. ii. (1868) pp. 147, 77 (hab. Cayenne, 

 Borba, Serra Carauman, hab. typ. select. Borba). 



Iponsin, R. Approuague : 4 c? c? ad., December 25, 28, 30, 1902, January 2, 1903; 

 1 S imm., December 26, 1902 ; 4 ? ? ad., December 25 (two), 29, 1902, .January 3, 

 1903. 



" Iris seal, feet slate-grey (' greyish, greyish flesh '), bill black (' above black, 

 below slate-black,' dusky grey, ' grey ')." 



iS ad. : al. 73—71 ; caud. 51|— 49J ; culm. 17f— 17|; tars. 18J— 18i mm. 



¥ ? ad. : al. 74— 70| ; cand. 51J— 48J ; cnlm. 17— 15| ; tars. 18|— 17^ mm. 



Nos. 12804, 12806 {bis), 12807, 12870, 12895, 12917, 12973, 12979. 



• C£. HellmajT, Verh. zool.-iot. Oes. Wien. 1903. pp. 215, 216. 



