( 312 ) 



Altbough Mr. Eidgway compared liis type with -S. t. rosenbergi (Hart.), of 

 Western Ecnador, the two birds have very little iu common. S. t. oliraceus is 

 exceedingly close to & t. wall(fcii, which is also geographically the nearest. Yet my 

 eight specimens (two from Caura, six from Brit. (Juiaiia) differ by having the thi-oat 

 and foreneck much more conspicuously tinged with brownish, as well as by their 

 duller, brownish olive back. In the latter respect they approach S. t. amazonum, 

 but may be distinguished by the absence of cinnaraoracons on the crown. Two of 

 the skins are, however, scarcely different from iralhicii. Tiie specimens from British 

 Guiana are in every way identical witli the two tojiotypes from the t'aiu'a 

 River. 



143. Heterocercus linteatus (Strickl.). 



Elaenia linleiita Strickland, Ginlrib. Orn'itli. for 1850. Illustr. p. 121. tab. fig. siu. (part, -.i^ — " from 



the upper branches of the Amazon River "). 

 Belerocevciis linlaitas Hellmayr, l.i; p. 3C2 (Hunuytha) ; Pelzeln, Ic. p. 125 (Borba). 



Nos. 085, 1021, 102T. d'c? ad., Maruins, 9, 1(3, 17. vii. 1908.— "Wing 89—90 ; 

 tail 54 ; bill 12i— 13J mm. " Iris bro.vn, feet and bill black." 



Nos. 1007, 1017. ?? ad., Maruins, 12, 14. vii. 1908.— Wing 8:5, 80; tail 

 52, 54; bill 13 mm. 



No. 793. ? ad., AUianca, 9. xi. 1907.— Wing 83 ; tail 51 ; bill 13 mm. 



Until recently this beautiful species was only known from the llio Madeira. 

 Miss Snethlage, however, has lately obtained specimens at Monte Alegre, on the 

 Lower Amazons,* and fonnd it common on the Tapajuz : Villa Braga, Goyana, 

 Ilha do Papagcio, and Ilha do (Joata.t 



[144. Tityra cay ana (I.tun.). 



Laniua Cayanua Linn.aeus, S'lst. Nut, xii. 1. p. 1.^7 (1700. — ex Brisson : " Cayania"). 

 Tilijya cayana Pelzeln, / c. p. 119 (Borba). 



Right bank : Borba (Natterer). 



The single adult male in the Vienna Museum agrees, in size and colonr of 

 the bill, with specimens from French Guiana, Venezuela (C!anra), etc. The basal 

 portion of both mandibles (for about 16 mm.) is reddish yellow, the remainder 

 black.] 



145. Tityra semifasciata semifasciata (Spix). 



Pachyrhynchus semifascialus Spix, .Ir. /inis. ii. p. .'!2. pi. xliv. fig. 2 (1825. — "in provincia 



Par:i"). 

 THyra neiui/axciata semifituriata Hellm'iyr, Nm'. Zoo}, xiv. p. 'M\'^ (Humaythu). 



No. 431. S ad., Calama, 19. viii. 1907.— Wing 119 ; tail 72 ; bill 26 mm. 

 No. 810. S ad., Allianca, 2. xii. 1907.— Wing 118 ; tail 72 ; bill 24 mm. 

 "Iris yellowish red, feet dark grey, bill greyish red." 

 Typical of T. s. semifasciata. Of. my revision of Spix's types, p. 668. 



[140. Tityra leucura Pelz. 



Tilym (Eralor) leucura Pelzeln, Zur Oni. Bras. ii. pp. 120, 1H3 (18G8.— Salto do Girao, Rio 

 Madeira). 



Right bank : Salto do (iirao (Natterer). 



Natterer obtained, in October 1829, a single immature male which is still 



» Journ.f. dm. 1U07. p. 280. t J"urn.f. Urn. I'.KIS. p. .'■jUl. 



