141 



green, margined anteriorly and posteriorly with -white ; quills, rump, and tail coverts brown, in 



some lights greenish, middle tail feathers curling upwards ; tail grey-white ; bill yellow ; legs orange. 



Fem. : brown, with the edge of the feathers lighter ; speculum similar to that of the male. 



Var. A. Anas adunca (Linn.) — Hook-billed Duck. 

 This variety has the bill turned downwards. 



Var. B. Penguin Duck. 

 The peculiar upright position of this variety when at rest and standing distinguishes it. 



Anas Boschas Linn. St/St. 1 . 205. 



Gmel. Sijst. 1 . 538. 



Lath. Ind. Orn. 2. 850. 



Wild Duck Penn. Arc/. ZooL 2. 494. 



Le canard saurage B".tF- Ois. 9. 1 15. 



Trachea Linn. Trans, vol. 4. tab. Vl.fig. 10. 



Inhabits universally the temperate regions of the northern hemisphere, and does not appear to be 

 subject to any considerable migration ; breeds commonly in all marshy districts, laying from ten 

 to fifteen eggs of a greenish colour. 



The trachea is of nearly equal diameter throughout ; the inferior larynx is furnished on the 

 left side with an osseous bulb ; anteriorly slightlv acuminate. 



ANAS FLAVIROSTRIS. 



An. — Cinereo-brunneo, rostro flavo, naribus macula atari cingentibus. 



YELLOW-BILLED DUCK. 

 Cinereous-brown duck, with a yellow bill, and the nostrils surrounded by a black patch. 



!\. IN. 



Length 22± Tarsi 2 



Bill 2\ Middle toe 2| 



Slaty-brown duck, above with the edges of the feathers narrowly margined with lighter, below 

 broadly ; wing spot brassy green, surrounded anteriorly and posteriorly with a narrow streak of black, 

 superiorly with one of the same colour, formed by the outer webs of the tertiaries, beyond the black 

 streak posteriorly and anteriorly a narrow one of white ; tail feathers pointed, slightly edged n ith 

 light brown; bill yellow, with a black patch covering the nostrils; nail black; legs and feel 

 brownish lead colour. 



Aimk Jhirirustris Smith, < 'at. S. Afric. Mas. 



This new species is an inhabitant of the neighbourhood of the Cape of Good Hope. Specimens are 

 in the South African Museum, and in the collection of the Zoological Soeiety. 



