458 PROCEEDINGS OF THE ACADEMY OP [April, 



considerable amount of individual variation in the depth and shade 

 of color, both on the upper and lower surfaces, which differences com- 

 prise all that appear to distinguish anguina from lafresyiayei; in conse- 

 quence of which anguina must be considered a synonym, as has 

 already iDcen indicated by Dr. Allen. ^^ 



The specimen in the Lafresnaye collection labelled as one of the types 

 of D. atrirostris, and referred l)}^ Mr. Ridgway to D. olivacea,^^ is un- 

 doubtedly an example of lafresnayei. Specimens of olivacea from 

 Panama, clearly intermediate between olivacea and lafresnayei, point 

 conclusively to the necessity of using a trinomial for the latter. 



Dendrocincla olivacea phaeocliroa (Berlepsch and Hartert). 



Dendrocinda (sic) pJucochroa Berlepsch and Hartert, Novit. ZooL, IX, 1902, 

 p. 67. 



Type Locality. — ]\Iunduapo. Orinoco river, Venezuela. 



Geographical Distribut io n . — ^^ene z uel a . 



Very close to Dendrocincla olivacea lafresnayei, and in size and gen- 

 eral color both above and IdcIow not distinguishable ; iDut it has the 

 chin and cheeks less graj'ish. as well as the chestnut of the wing-qviills 

 less washed with olivaceous. It differs more decidedly from true 

 olivacea, however, in its lighter, more rufescent coloration, more ochra- 

 ceous chin, and less olivaceous wdng-quills. From D. merula, although 

 of the same size, it may be readily distinguished by its paler, rather 

 more olivaceous upper parts; much lighter, more rufescent or ochra- 

 ceous ventral surface, the throat buffy or ochraceous instead of whitish 

 or grayish ; lighter lores ; and a slightly evident ochraceous postocular 

 stripe. 



Three specimens in the collection of the American Museum of Natural 

 History, collected by S. M. Klages in ^'enezuela — two from Suapure, 

 one from La Union, Caura — agree perfectly with Messrs. Berlepsch and 

 Hartert's original description of pJueochroa. These have l^een carefully 

 compared with the type of lafresnayei as well as with the considerable 

 series of that form at present availal^le, with the result of demonstrating 

 that phceochroa is at l^est Ijut a subspecies of olivacea, since the only 

 characters discernible to separate it from lafresnayei are shown to be 

 not entirely constant; yet it still is probably quite entitled to stand as 

 a geographical race on its merits as above said. 



Dendrocincla ridgwayi, sp. nov. 



Chars, sp. — Similar to Dendrocincla olivacea lafresnayei, l)ut larger; 



18 Bull. Amer. Mus. Nat. Hist., XIII, 1900, p. 156. 

 " Proc. U. S. Nat. Mus., X, 1888, p. 492. 



