List of Costa-Rica Birds. 113 



Schlegel, Mus. P.-B. Buccones, p. 60. Eubucco hartlaubi" $ aiit 

 juv.," Scl., P. Z. S., 1857, p. 267. Capita hartlaubi, Schlegel, 

 t. c. p. 62 {partim). C. melanotis, Scl., Ibis, 1861, p. 190 

 [partim); Scl. & Salv. P.Z. S. 1866, p. 196. 



Hab. Upper Amazon [Bates, Hauxwell, Bartlett); Ecuador, 

 Rio Napo. 



This species seems to represent in the region of the Upper 

 Amazon and Ecuador the New-Granadian C. richardsoni. The 

 female is larger than that of C. richardsoni, and has the bill 

 stouter; otherwise, as might be anticipated, they closely resemble 

 one another in coloration. 



This arrangement, it will be observed, provides females for 

 each of the species C. bourcieri, C. richardsoni, and C. aurantii- 

 collis, all of which have hitherto been placed as if the males 

 alone were known. After admitting the great disparity between 

 the sexes of C. maculicoronatus, Law., the difiPerences here ob- 

 served are less surprising. 



(401 & 402.) Chrysotis pulverulenta and C. viridi- 



GENALIS. 



Further information respecting the birds thus named would 

 be acceptable. At present I have only seen C. guatemalcs (added 

 to the list in Mr. Lawrence's Appendix) and C. diademata, 

 Spix. Our specimens from Costa Rica and Veragua of the 

 last-named Parrot agree with others from Panama, which Dr. 

 Finsch (Papageien, ii. p. 545) considers identical with C. dia- 

 demata. 



In his Appendix, Mr. Lawrence (op. cit. pp. 141, 145) adds 

 seven species to the previous list, describing a Tyrant-Flycatcher, 

 under the name " Pogonotriccus? zeledoni," and then goes on 

 to correct some of his previous determinations. To most of 

 these corrections I have already drawn attention in my former 

 paper. As regards Asturina nitida^, formerly so called, our 

 specimens from Panama, both adult and young, belong de- 

 cidedly to the southern, and not to the more northern race {cf. 

 Exot. Orn. t. 79). The northern bird has since been called 

 A. polionota by Dr. Cabanis (J. f. 0. 1869, p. 208), which 



* See Scl. .^' Salv., P. Z. S. 1868, p. 17:1 

 N. S. VOL. VI. I 



