Mr. Walker's descriptions of Chalcidites from Lima. 115 



p. 221. This is a species observed bj' 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 spectabUis, 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 AnimaUum Rossicorum,' Aves, fasc. i. p. 21. pi. 3. 



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

 vol. ii. p. 876. = J^nas 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 cequinoctialis, /S. Kuril Petrel, Lath. Ind. Orn. 

 p. 821 ; Procellaria (equinoctialis. Fail. Zoogr. vol. ii. p. 314. :=.Pttffi- 

 nus curilicus, mihi in Museo Academico. 



2. Procellaria f areata. 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. = Carbb violaceus, mihi, Carbonum Monographia, 

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

 figured with accurac)^ by myself. 



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

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

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



XX. — Bescrijitions o/ Chalcidites found near Lima hij C. Dar- 

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



Dicyclus Ardiiine, Fern. Ater, abdomen CEiieum, antennce nigrce, pedes 



jlavo-fulvi, alee UmpidoB. 

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

 hirtum : caput transver.sum, breve, thorace paullo latius ; vertex latiis; frons 



* The above two beautiful species of Teal, Querquedul a falcaria and 

 Querquedula formosa, may now be seen in the Chinese Exhibition at H)de 

 Park Corner (Nos. 8(34 and 884 of the catalogue). M. Brandt appears to 

 consider Q. fonnoxa to be identical with Anas glocitans, Pall., the " Binui- 

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

 I 2 



