404 Mr. Vigors's Sketches in Ornithology, 



V. Fam, ChA-radriad^. Leach. [Gen. Charadrius, HcBtnatopus. 

 Linn.] 

 Hwmatopus, Linn, [Ostralega. BrissJ] — Calidris. IlL [Are- 

 naria.JBm*.] — Falcinellus, Cuv, — Erolia. Vieill.? — Curso- 

 rius. Lath. [Tachydromus. ///.] — Strepsilas. III. — Squata- 

 rola. Cuv. — Vanellus. Briss. [Tringa. ///.]— PI uvian us. 

 Vieill. — Charadrius. Auct. [Pluvialis. Briss."] — Burhinus. 

 III. .^ * — Himantopus. Briss. [Macrotarsus. LacepJ] — 

 CEdicnemus. Cuv. 



ORDO V. NATATORES. ///. [Anseres. Linn.] 

 I. Fam. ANATiDiB. Leach. [Gen. Anas. Mergus. Linn.] 

 * Subfam. Anserina. 

 Anser. Briss. — Bernicla. Steph. — Cheniscus. Brookes^s 



MMS. — Chenolopex. Steph. — Plectropterus. Leach, 

 ** Subfam. Cereopsina. 

 Cereopsis. Lath. 

 *** Subfam. Anatina, 

 Tadorna, Leach, — Cairina. Flem, — Anas, Auct, — Dafila, 



Leach, — Mareca, Steph, — Querquedula, Kay, — Rhyn- 



chaspis. Leach. 



**** Subfam. ?f 



Clangula. Flem. — Ilarelda. Ray. — Fuligula. Ray. — Mergus, 



Linn. [Merganser. Briss.] — Somateria. Leach. — Oidemia. 



Flem, — Biziura, Leach, 

 ***** Subfam. Cygnina. 

 Cygnus, Meyer. 



* I have not seen the species on which this genus is founded. 



+ The above disposition of the Anatidoe exhibits a slight deviation from that 

 drawn out in my paper on " the Affinities of Birds, " and adopted from it by 

 my friend Mr. Stephens in the " General Zoology." I do not think, upon 

 consideration, that the two subfamilies of the ^^ Canards proprement dits^^ of 

 M. Temminck can be said to be so far separated from each other, as by the 

 intervention of another subfamily : while Cygnus appears to hold a separate 

 station of equal rank with the other subfamilies. The series of affinity how- 

 ever remains unaltered : a partial change only takes place in the mode of 

 selecting the types of each subfamily. Mergus seems to belong to the fourth 

 subfamily, but to be at the extremity of it; in fact to be osculant between the 

 families o{ Anatidoe and Colymbida. 



