98 BIRDS OF HAWAIIAN ISLANDS. 



The specimen sent is a fine male, measuring as follows : 



-4- Spatula clypeata (Linn.). 

 Shoveller. Koloa moha. 



This Duck, which has already been recorded by Mr. Dole and several I 

 visiting' naturalists as occurring in the islands during winter, seems 

 be comparatively common. 



Mr. Knudsen's specimen is a male in winter plumage, apparently 

 bird of the year. 



Measuremt nts. 



113452 



Collector. 



Knudsen 



(d). 



Locality. 



Kauai, Hawaiian Islands 



Date. 



243 



90 



c = 



■ ~ 



o = 



61 



— j3 



Anas wyvilliana Sclater. 

 Hawaiian Duck. Koloa maoli. 



1852. — Anas boschas f Hartlaub, Wiegin. Arch. Naturg., 1852, p. 13? (from spec, in i 



Mas. Berol. ex Oahu).— Gray, Cat. B. Trop. Isl. Pacif., p. 54 (1359). 

 1854. — Anas boschas var. Hartlaub, Journ. f. Orn., 1854, p. 170. 

 1856. — Anas superciliosa a. sandwichensis, Bonaparte, Conipt. Eeud., xliii, 1856, p. 



649 (noin nud.). 

 1859. — Anas superciliosa var. Gray, Cat. B. Trop. Isl. Pacif., p. 54. 

 1862. — Anas boschas Cassix, Proc. Acad. Philada., 1862, p. 322. 

 1869.— Anaa superciliosa Dole, Proc. Boston Soc. N. H., xn (p. 305); Extr.,p. 12 {neo 



G.mel.). — Id., Haw. Almanac, 1879, p. 55. 

 1878.— Anas wyvilliana Sclater, P. Z. S., 1878, p. 350.— Id., Pep. Toy Challenge* 



Zool., II, pt. v.ni, p. 98, pi. xxii (1881).— Ridgway, Proc. U. S. Nat. Mas, . 



i, 1878, p. 251.— Fixsch, Ibis, 1880, p. 79.— Wallace. Island Life, p. 296 i 



(1881). 

 Of tbis interesting Duck peculiar to the Hawaiian Archipelago the 

 collection contains four specimens, two of which on the labels are desig- 

 nated as "Koloa maoli," while the other two are inscribed "Koloa 

 piwai." I can see no difference between the specimens so marked. 



As the original description and figure of this species are somewhat 

 defective, and as the specimens before me offer some differences of 

 plumage not hitherto recorded, a somewhat detailed account of my mate- 

 rial may not be out of place. • 



