1. roDiciPEs. 527 



Adult in hreeding-plamafje. liesembles P. roUaiidi, but may be 

 at once distinguished by its much larger size as well as by the 

 colour of the breast and underparts, wliicli are much brighter rufous 

 chestnut. The general colour of the head and neck, including the 

 chin and throat, is black glossed with bluish green, and the green 

 gloss on the upper parts of the body is more pronounced. The 

 amount of white on the secondary-quills varies considerably in 

 apparently fully adult birds ; some individuals have the middle 

 quills nearly pure white, with only the parts of the web next the 

 shaft ash-brown, while in others the same feathers have the outer 

 web and a part of the inner web ash-brown. Most examples have 

 the tips of the secondaries washed with rufous buff. " Iris fine 

 red" {C. Darwin). Total length about 14 inches, culmen from 

 feathers on forehead 1-1-2, wing 5-3-5-5, tarsus 1-8, outer toe and 

 daw 2-5-2-6. 



The adult in non-breeding plumage apparently resembles that 

 of P. rollandi. I have not been able to examine an individual in 

 nou-breeding-plumage, but a bird which has partially attained 

 the breeding-plumage has the greater part of the breast and belly 

 whitish mixed with freshly- moulted chestnut feathers. 



Hah. Falkland Islands. 



a-e. Ad. sk. Falkland Is. AntarcticExped.[P.] 



/. Ad. sk. Falkland Is. (Leconte). Salvin-Godnian Coll 



(J. $ ad. sk. Falkland Is., July 21 [j. Mac- Voy. of II.M.S. 



yillivray). ' Rattlesnake.' 



h, i. Pull. sk. Falkland Is. Gould Coll. 



Ic, I. Ad. sk. Port Stanley, E. Falkland Is- Frank Arthy, Esq. 



land, Feb. (J. F. Kinr/). [P.]. 



m. 5 ad. sk. Fi«h-house Creek, Berkeley McCormick Bequest. 



Sound, E. Falkland I., 



June 13 (R McC). 



12. Podicipes auritus. 



Black and White Dob-chick, Echo. Nat. m'st. B. ii. pi. 96. fio-. l 

 (1747).. 



Eared or Horned Dob-chick, Edw. Nat. Hist. Ii. ii. pi. 96. fig. 2 

 (1747), iii. pi. 145 (1760) ; Pennant, Arct. Zoo!, ii. p. 497 (178^);. 



La petite Grebe hupee, Brisson, Orn. vi. p. 42, pi. iii. fig. 2 (1760) ; 

 Buf. Hist. Nat. Ois. viii. p. 23.^ (1781). 



La petite Grebe cornne, Brisson, Orn. vi. p. oO (1760) ; Buff'. Hist 

 Nat. Ois. viii. p. 237 (1781). 



La petite Grebe, Brisson, Orn. vi. p. 56 (1760). 



Colymbus auritus, Limi. S. N. i. p. 222 (1 766) ; Bonnat. Tabl. Enci/cL 

 Mm. i. p. 56, pi. 45. fig. 3 (1 790) ; Pallas, Zooqr. Rosso-As. ii. p. 356 

 (1811) ; Stejn. Bull. U.S. Nat. Mas. xxix. p." 14(188.5) [Bering L], 

 p. 313 I Kam.scliatka] ; A. O. U. Checl-l. p. 74 (1886) ; Seton, Auk, 

 iii. p. 147 (1886) [W. Manitoba] ; Ridi/ir. Man. N. Am. B. p. 5 

 (1887); Nelson, Rep. N. H. Alaska, p.' 35 (1887); JFarren, B. 

 Pennsi/lv. p. l,pl. 11 (1888) ; Scott, Auk, v. p. 373 (1888) [Gulf of 

 Florida]; i>V.s/w;),.J«/,:, vi. p. 144 (1889) [Maizdalen I-^."; Clarke, 

 Auk, vii. p. 320 (1890) [Ilndson 15av]'; ilarlert. Rat. Mm. 

 Senckenb. p. 245 (1891) ; MacFarl. P. U.S. Nat. Mus. xiv. p. 415 

 (1891) [Arctic America]; Hatch, B. Minnesota, p. 6 (1892); 



