m 



ANAS WYVILLIANA, 



KOLOA MAOLI. 



Anas superciliosa, var. a, sandwichensis, Bonaparte, Comptes Rendus, xliii. p. 649 (1856). 



Anas superciliosa, var., G-. R. Gray, Cat. B. Trop. Isl. p. 54 (partim) (1859) . 



Anasboschas? " (Mus. Berol.) Oahu," Hartlaub, Arch. f. Naturgesch. 1852, i. p. 137; Cassia, 



Proc. Acad. Philad. 1862, p. 322. 

 Anas superciliosa, Dole, Proc. Bost. Soc. N. H. xii. p. 305 (1869) ; id. Hawaiian Alman. 1879, 



p. 55 (nee Gmelin). 

 Anas wyvilliana, Sclater, Proc. Zool. Soc. 1878, p. 350; id. Voy. ' Challenger/ Birds, p. 98 



pi. xxii* (1881) ; Ridgway, Proc. U.S. Nat. Mus. 1878, p. 251 ; Finsch, Ibis, 1880, p. 79 ; 



Stejneger, Proc. U.S. Nat. Mus. 1888, p. 98. 

 ? Anas superciliosa et boschas, Hartlaub & Finsch, Beitr. Faun. Polynes. p. xxxix (1867). 



* Figura notabilis. 



Doubtless it will be the opinion of some ornithologists that this bird should be 

 denominated Anas sandvicensis, in accordance with the subspecific name bestowed in 

 1856 by Bonaparte ; but as that author seems to have considered it a mere variety of 

 A. superciliosa, and gives no description, I follow Dr. Sclater in calling it A. wyvilliana, 

 a name based upon two examples obtained in 1875 at Hilo, in Hawaii, during the 

 voyage of the ' Challenger.' There is no longer any doubt of its specific distinctness 

 from either A. superciliosa or A. boscas, though its superficial resemblance to the former 

 and to the female of the latter has no doubt been the cause of its being often passed over. 

 It will be seen, however, in the article on Bernicla sandvicensis, that Bloxam noticed 

 "ducks" when at the Sandwich Islands ; while the specimens from " Oahu" mentioned by 

 Hartlaub were no doubt obtained by Deppe, and Cassin records the fact that Stimpson 

 noticed " A. boschas " during the United States North Pacific Surveying and Exploring 

 Expedition in 1856. Dr. Stejneger, as above cited, considers our species very closely 

 related to A. aberti, Ridgw.. of N.W. Mexico ; but it rather resembles A. obscura. 



I shot specimens in November near Waialua, on the island of Oahu, and observed 

 others on the island of Hawaii near Hilo ; while Mr. W. H. Purvis told me he used 

 to kill them at small ponds which occur in the forest near Kukuihaele, in the district 

 of Hamakua. Dr. O. Finsch remarks ('Ibis,' 1880, p. 79):— "Of the latter (Anas 

 wyvilliana, Sclater) I saw flocks in the swamps near Waimanalo (Oahu)." Dr. Stejneger 

 also received four specimens, obtained by Mr. Knudsen on Kauai, of which he gives an 

 exhaustive account (Proc. U.S. Nat. Mus. 1888, p. 99). Judge Dole's statement that 

 it inhabits the whole group is therefore probably correct. 



