ORNITHOLOGY. 
31 
With such indications of a difference in species, and these uniformly exhibited in a considerable 
number of specimens, I should not consider myself justified in keeping the birds otherwise than 
specifically separated ; at the same time stating the grounds for their separation. 
Anas Americana. Gmel., Syst. Nat. vol. 2. p. 526. sp. 97. — Wils., Am. Orn. 
vol. 8. p. 86. pi. 69. f. 4. — Pr. of Musignano, Syn. p. 384. sp. 326. 
American Widgeon, Penn., Arct. Zool. vol. 2. p. 567. sp. 502. 
Le Canard jensen de la Louisiane. Buff., PL Enl. 955. 
Anas acuta. Linn., Syst. Nat. vol. 1. p. 202. sp. 28.' — Wils., Am. Orn. vol. 8. 
p. 72. pi. 63. f. 3. — Pr. of Musignano, Syn. p. 383. sp. 325. 
Pintail. Penn., Arct. Zool. vol. 2. p. 566. sp. 500. 
Canard a longue queue. Buff., PI. Enl. 954. 
Anas urophasianus. n. s. Zool. Journ. vol. 4. p. 357. 
An. capite, corpore, caudclque pallide rujis , illis brunneo ocellatis ; penis, gula, colloque infra albis ; alis fuscis, spe- 
culo fascias quatuor exhibente , primam supra grucilem rufam, sec.undam latarn dilute cceruleam, tertiam gracillimam air am. f 
quartam latarn rufam , 
Capitis macula? parvs, nucha: pectorisque grandiores, abdominis subgrandes. Scapulares subfusc*, rufo marginal*. 
Dorsum imum fuscescens, Tectrices alarum inferiores, primae brunnea?, secundaria? albas. Plum a axillares alb*. 
Longitudo corporis, 21 5 ; rostri, 2 ; ala;, a corpo ad apicem remigis secundae, 9J ; cauda, 5f ; tarsi, 1J. 
PLATE XIV. 
Rhynchaspis CLYPEATA. Leach. 
Anas clypeata. Linn., Syst. Nat. vol. 1. p. 200. sp. 19. — Wils., Am. Orn. 
vol. 8. p. 65. pi. 67. f. 7. — Pr. of Musignano, Syn. p. 382. sp. 322. 
Shoveler. Penn., Arct. Zool. vol. 2. p. 557. sp. 485. 
Souchet. Buff., PI. Enl. 971, 972. 
Fuligula Marila. Leach. 
Anas Marila. Linn., Syst. Nat. vol. 1. p. 196. sp. 8. — Wils., Am. Orn . 
vol. 8. p. 84. pi. 69. f. 8. — Pr. of Musignano, Syn. p. 392. sp. 340. 
Scaup Duck. Penn., Arct. Zool. vol. 2. p. 565. sp. 498. 
Le Millouinan. Buff., PI. Enl. 1002. 
Several specimens of a bird nearly allied to this species, if not the same, were brought home by 
the expedition. They uniformly differ from the typical Ful. Marila in their smaller size, in the black 
colour on the breast being less intense and defined, in the undulating white markings being less dif- 
fused over the scapulars and back, and being wanting almost entirely on the wing-coverts. Dr. 
Richardson, whose judgment on these points, and whose experience respecting the birds of the Arctic 
regions entitles him to every confidence, is inclined to consider these birds but as a variety of the 
European species. Following his opinion, I refrain from describing them as separate. It is however 
to be observed, that the true Fuligula Marila is found in North America, and there is therefore less 
reason to believe the birds alluded to above to be varieties resulting from climate or locality. Should 
the species prove to be distinct, the specific name of Mariloides, which has been suggested by Dr, 
Richardson, would be appropriate. 
