( 69 ) 



pairs of rectrices, though sometimes the fourth rectrix also shows a very narrow 

 white margin. The white tip on the outermost i)air varies in Jengtli from 4 to 0, 

 on the second from 3 to 4 mm., while the third has a white ajiical margin, about 

 H to 2 mm. wide. 



In the typical race, of which seven specimens from Pari, Santarem and the 

 Rio Madeira are available for comparison, the tip on the outermost rectrix measures 

 from 8 to 10, on the second from to 8, on the third from 4 to 6, on the fourth from 

 4 to 5, on the fifth from 2A to 4 mm. 



There are no other differences between the two forms, as far as I can see. 



Like M. I. luctuosus, the males of the present series have the elongated crest 

 deep black like the back, the females bright chestnut-rnfous. 



Ti/pc of subspecies in the Tring Museum : S ad., August lOUii, No. 2399. 



This is another purely Amazonian type, which we should have scarcely expected 

 to meet with so far in the interior of Goyaz. 



116. Dysithamnus aflSnis affinis Pelz. 



Dysithammis affiiiiis Pelzeln, Ziii- Oriiilh. Bmsil. ii. p. 149 (1868.— Villa Maria, Mattogrosso). 

 D. mentalis (nee Temminck) Allen, Bull. Antei: Mus. v. 1893. p. 118 (Chapada, Mattogi-osso). 

 D. olivaceus (nee Tschudi) Sclater, Cat. B. Brit. Mus. xv. 1890. p. 2-_'2 (Chapada, Mattogro.sso). 

 Cf. Berl. & Hellm., Journ. f. Ornith. 1905. pp. 14-16. 



Nos. 1637, . ? ? ad,, Faz. Esperau9a, December 1905.— Wing 62, 59; 



tail 43, 40 ; bill Ui, 15 mm. 



They agree perfectly with three others from Chapada, Mattogrosso, while the 

 typical female from Villa Maria, a locality farther to the west than Chapada, is more 

 reddish on the wings, a character most certainly due to immaturity. 



The female of X*. a. affinis differs from that of V. mentalis (Temm.) in the 

 following details : The back is dull brownish olive (instead of greyish green 

 or olive-green), the foreneck, chest, sides and under tail-coverts are pale brownish 

 olive-yellow, the throat white speckled with ochreous, the middle of the breast 

 white ; while in D. mentalis the throat is pure white and the rest of the nnder-parts 

 uniform bright naples or maize yellow. The lores are rufescent (not white mixed 

 with cinereous), cheeks, eye region, superciliaries, and ear-coverts rufescent brown, 

 the latter narrowly streaked with white. In D. mentalis, on the other hand, the 

 sides of the head are dark cinereous variegated with whitish, the ear-coverts 

 blackish grey with white shaft-lines. 



Goyaz is a new locality for T>. a. w^^/h's, hitherto only known from Mattogrosso. 



117. Herpsiloclimus pileatus atricapillus Pelz. 



Herpsilnchmus atricapillus Pelzeln, Zur Oniith. Brasil. ii. p. 150 (1868. — Porto do Rio ParanA, 



northern S. Paulo ; Goyaz). 

 Tamnophilus pilmtus (nee Myiotliera piUata Lcht.) Lafresnayo & D'Urbigny, Sijn. -liv i. in .'/n.7. 



Znol. 1837. cl. ii. p. 12 (Chiquitos, Bolivia). 

 Tamnophilus affinis (nee T. affinis Spix 1825 !) idem, I.e. p. 12. deacr. orig. ? (Chiquito.'i, Bolivia). 

 Tharnndphilus pileatus (,= S) + T. affinis (= ?) D'Orbigny, Voyage, Oiseaux, p. 175 (Oet. 1838. — 



San Jos^ and S. Ana, Chiquitos, Bolivia). 



No. 2178. (<?) ad., Rio Thesouras, May 1906.— Wing 54; tail incompl. ; bill 

 15 mm. 



Nos. 1740, 2350. SS juv. (plumage of the ?), Faz. E8peran9a, January; 

 Rio Araguaya, July. — Wing 54, 63; tail 60, 55i ; bill 15 mm. 



