(31T ) 



abdomen. The sides of the body show uo trace of the bluish grey colour so 

 conspicuous in P. bilineata. 



No. 2, a fresh skin, has the breast and abdomen of a delicate cream j'-yello wish ; 

 in the type, which is slightly faded, these parts are almost white. Tliere can be 

 no longer any doubt that P. lactea is an excellent species. It need.s no com- 

 parison with the other black-headed forms, since the broad white superciliaries 

 serve to distinguish it at once. 



13. Curruca olivacea Less. = Vireo chivi (Vieill.) ! 



Sylvia chivi Vieillot, Xom-. Diet. xi. (1817), p. 174 [ex Azara ; Parai/wni]. 



Curruca oliracea Lesson, ia Voyage Coquille, Zoologie, Tome I. part ii. (1828), p. G64 [" I'ile de 

 Sainte Catherine au Bresil "]. 



Mus. Paris, spec. typ. (skin) labelled : " Lesson et Garuot. — Duperrey. 

 Fauvette, Ste Catherine dn Brdsil, No. 38. Si/hia olivacea Less., Brfisil, No. 72." 

 Wing 74 ; tail 56 ; bill 13^ mm. (tip broken oif). 



This specimen, without doubt the type, agrees in every respect with a topo- 

 typical skin from Paraguay (Bohls coll.). The second primary is the longest, the 

 third and fourth hardly shorter ; the fifth about 4 J mm. less than the third and 

 equal to the first. As in the Paraguay example, there is no dusky malar streak. 



Several times before I tried to make oat the species from Lesson's description, 

 but I never expected that it would turn out to be V. chivi ! 



14. Dacnis salmoni Scl. should be Nemosia salmoni (ScL). 



Daciiis salmoni Sclater, Cat. Birds Brit. Mm. xi. (1880) p. 27, pi. ii. fig. 2 (Remedies, Antioquia). 



L Mus. Brit. ?. Remedios. T. Salmon coll. Type of species. — Wing 58; 

 tail (moulting) ; bill 13 mm. 



Hartert* has already remarked that this bird had nothing to do with Dacnis, 

 but belonged to the genus Nemosia. This statement seems to have been overlooked 

 by all later authors, for it is not even mentioned by Ridgway f and Oberholser.J 



The careful study of the type specimen leaves not tiie slightest doubt that the 

 species is most closely allied to Nemosia cknjsomelas (Scl. & Salv.), which, though 

 originally assigned to Tachyphonus (! !), has since been jiroved by Mr. Ridgway § 

 to belong to that section of Nemosia separated by Cabanis under the name 

 Hemithraupis. In fact, both species are practically identical in structure ; 

 perhaps the bill in N. salmoni is a very little broader at the base, but otherwise 

 it is of the same shape. In coloration, however, the single known ? differs widely 

 from that of N. chrysomelas. Whether N. salmoni is really the ¥ of iV. rosenbergi 

 Rothsch. cannot be decided without knowing the S , but I notice that the type of 

 the latter species is much larger : wing 70 ; tail 53 mm. 



15. Knipolegus unicolor Kaup. 



This name was exclusively based on the description of Flucicola cyanirostris 

 Lafr. & D'Orb. from Corrientes. The Paris Museum still possesses the skin of au 

 adnlt male with D'Orbigny's original label, which reads as follows : 



" Ada cyanorostris Nob. Corrientes. D'Orbigny, juillet 1829. No. 37." — Al. 80 ; 

 caud. 72 ; rostr. 13| mm. 



• Nm. Zool. V. 1898. p. 484. 



t Birds Xi'rth and Middle America, ii. 1902. p. 391. 



+ Proc. U.li. Mus. xxv. 1902. p. 141. 



§ Birdx Ntrrth aiid Middle Amerioa ii. p. 106. 



