(1^1 ) 



02. ThamnophiUis canadensis canadensis (Linn.). 



Lniiiiis miKirli'iiiiK Linnaeus, Si/mL XuI. xii. 1. p. I'M. desrr. f [l")')!'. : ex Rrisson, '^ Cumnhi" : 



errore ! — Wesulistitute Ciii/i ii/ir as typical locality]. 

 T/iamuophi/us tn,i',l,ilis Ridgw.ay, I'm: I'.S. .Uiis. xiv. (IW91) i>. 4«I [Triniilad]. 

 T. firi-huliis auct. 



9. 3 6 and 1 ? from Soclet, April ; •") S ad., 1 S jr. and 1 ? from Pointe 

 Gourde, January ; 1 c? ad. from Chagnararaas, .January ; and 1 J jr. from 

 Laventille, Manb. 



Besides these specimens, I have examined a series of 40 adults from ('aycnne, 

 British Guiana, Surinam, (!nmana, the Orinoco and the Rio Branco (Natterer coll.), 

 and I fail to see any constant differences between them. Dark and pale-backed 

 specimens are to be found in Trinidad as well as on the mainland, and some of the 

 (typical) Cayenne skins are even darker on the upperside than those from Trinidad. 

 I can, therefore, no longer maintain T. trinitatis as different. 



93. Dysithammis affinis andrei n. suhsp. 



Di/sithamniis meiiliilis spoiliniiohis (nee D. xpiuliniintns Salv. & GoJni. I) flliapman. Bull. Amer. Mus. 

 vi. (1894) p. an [Trinidad]. 



4 c? ad. and 3 ? ? from Claparo, April. 



(?. Differs from />. n. afflids oi Mattogrosso only in having the under tail- 

 coverts white. 



?. Quite different from that of /A a. tijfniis and D. a. sjiodioiiotn.'i by having the 

 back olive-grey (not cinnamomeous or warm olive-brown) and the under-surface 

 much paler without any cinnamomeous tinge on sides or foreneck, only the flanks 

 and crissnm being pale olive yellowish. 



Type in Mus. Tring : ? ad., Cajiaro, Trinidad, April 12, 19(12. E. Andre coll. 



It is strange that the cj c? of the Trinidad form are much more like D. a. ajjuiis 

 of Mattogrosso than B. a. spodionotiis from the Roraima Mountains. Comparing 

 three males of each, I can hardly perceive any differences between them, but the 

 females are strikingly different. The distinguishing characters of the three 

 subspecies may be summarised as follow : 



(rt) D. a/fniis afii/ii.i Pelz.— Distribution : MidtiKj rosso, ('. Brazil : Villa Jlarin 

 (Natterer) ; Chaj)ada (Smith). 



5 ad. Ujiper parts puro schistacenus gri'y, pileum rather darker, rump slightly 

 washed with pale greenish. Throat and middle of the breast and ab<loni('n white, 

 sides and foreneck washed with pale grey, flanks and under tail-coverts distinctly 

 tinged with pale brownish or greenish. Wing, 61 ; tail, 39 mm. 



? ad. Ijack warm olive-brown : upjtcr wing-coverts and outer weli of the 

 remiges light rufeseent brown. Throat and middle of the lielly pure white, chest 

 and sides pale cinnamomeous brown. Wing, 01 ; tail, 39 mm. 



{b) D. affinis andrei Hellm. — Distribution : Trinidad. 



(J ad. Exactly like the S of the i>. a. uj/iiti.i, but the under tail-coverts [)nre 

 white, only the flanks being faintly shaded with greenish. Wing, (jl — 03; tail, 

 40—43 mm. 



? ad. Back olive-grey, passing into pale greenish on the rump. Upper wing- 

 coverts and outer webs of the remiges pale olive brownish. Throat and middle of 



