Mr. Walker's descriptions q/'Chalcidites/rom Lima. 115 



p. 221. This is a species observed by Steller and Gmelin, which I 

 have not yet seen, and which, from Pallas's description, may pro- 

 bably be a species of Cygnus. 



2. Anas beringi, Lath. Ind. Orn. p. 843. = Anas spectabilis, Lin. 

 according to the observations of Pallas, Zoogr. vol. ii. p. 236, which 

 appear to me well-founded. 



3. Anas falcaria, Lath. Ind. Orn. p. 860 ; Anas falcata, Pall. 

 Zoogr. vol. ii. p. 239. A very beautiful species, of which I have 

 given a very detailed description in my work ' Descriptiones et 

 Icones Animalium Rossicorum,' Aves, fasc. i. p. 21. pi. 3. 



4. Anas formosa, Georgi, Reise, vol. i. p. 168 ; Lath. Ind. Orn. 

 vol. ii. p. 876. = Anas glocitans, Pall. Zoogr. vol. ii. p. 261. I have 

 also given a full description of this bird in the same work*. 



5. Anas peregrina, Gmel. Reise, vol. ii. p. 183. pi. 16; Anas 

 gmelini, Lath. Ind. Orn. vol. ii. p. 876, appears to me to = Anas 

 nyroca, juv. 



6. Anas kekuschka, Gm. Reise, vol. iii. p. 249. pi. 26 ; Lath. Ind. 

 Orn. vol. ii. p. 877. = Anas strepera, according to Pallas, Zoogr. 

 vol. ii. p. 254, in which opinion I concur. 



B. Tubinares. 



1. Procellaria aquinoctialis, jS. Kuril Petrel, Lath. Ind. Orn. 

 p. 821 ; Procellaria cequinoctialis, Pall. Zoogr. vol. ii. p. 314. =Puffi- 

 nus curilicus, mihi in Museo Academico. 



2. Procellaria fur cata, Lath. Ind. Orn. p. 825 ; Procellaria orien- 

 talis, Pall. Zoogr. vol. ii. p. 315. = Thalassidroma furcata, mihi in 

 Museo Academico. A well-marked species, of which I intend pub- 

 lishing a full description accompanied by a figure. 



C. Steganopodes. 



1. Pelecanus violaceus, Gm. Syst. vol. i. p. 575; Lath. Ind. Orn. 

 vol. ii. p. 888. = Carbo violaceus, mihi, Carbonum Monographia, 

 MSS. A very distinct species, which will shortly be described and 

 figured with accuracy by myself. 



2. Pelecanus urile, Gm. Syst. Nat. et Lath. Ind. Orn. p. 888 ; 

 Phalacrocorax pelagicus et bicristatus, Pall. Zoogr. vol. ii. pp. 301, 

 303. = Carbo urile, mihi, Carbonum Monogr. MSS. 



XX. — Descriptions o/"Chalcidites found near Lima by C. Dar- 

 win, Esq. By Francis Walker, Esq., F.L.S. 



Dicyclus Arduine, Fern. Ater, abdomen ceneum, antenna nigra, pedes 



favo-fulvi, alee limpidce. 

 Corpus breve, convexum, atrum, scite squameum, parum nitens, parce 

 hirtum : caput transversum, breve, thorace paullo latius ; vertex latus; frons 



* The above two beautiful species of Teal, Querquedula falcaria and 

 Querquedula formosa, may now be seen in the Chinese Exhibition at Hvde 

 Park Corner (Nos. 864 and 884 of the catalogue). M. Brandt appears to 

 consider Q. formosa to be identical with Anas glocitans, Pall., the " Bima- 

 cnlated Duck " of British authors. The latest authors, however, regard them 



I 2 



