yo PATAGONIAN EXPEDITIONS : ZOOLOGY. 



probable that it does not differ greatly from the non-breeding state of 

 plumage, occurring in P. auicricaiuts. The breeding season of P. rollaudi 

 is much later than that of /'. niiicn'caiiits, or at least extends over a longer 

 period, as individuals in the British Museum collections taken in June are 

 still in breeding plumage. 



PoDiciPES CALiPAREUS (Lesson). 



Podiccps ca/ipnrc/ts, Less. Voy. Coq. Zool. I. p. 727, pi. XLV (1826: 

 Falkland Isl.); Gould. P. Z. S. 1859, p. 98; Scl. P. Z. S. i860, p. 

 389; Abbott, Ibis, 1861, p. 162 (E. Falkland Isl.); Pelz. Reise 

 Novara, Vog. p. 140 (Chile); Scl. P. Z. S. 1867, p. 340 (Chile); 

 Durnf. Ibis, 1877, p. 45 (Chupat River), 1878, p. 405 (Central Pata- 

 gonia) ; Graham Kerr, Ibis, 1890, p. 358 (Rio Pilcomayo) ; Scl. P. Z. 

 S. 1891, p. 137 (Tarapaca). 



Podiceps occipitalis, Garn. Ann. Sci. Nat. VII. p. 50 (1826: Falkland Isl.) ; 

 Gray, Gen. B. III. p. 633 (1846); Schl. Mus. Pays-Bas, VI. Urinat. 

 p. 41 (1867: Falkland Isl., Chile); Oust. Sci. Miss. Cap Horn, 

 Oiseaux, p. 317 (1891). 



Podiceps kalipareus, Gould, Voy. 'Beagle,' Birds, p. 136 (1841 : Bahia 

 Blanca: Falkland Isl); Fraser, P. Z. S. 1843, p. 119 (Valparaiso 

 Bay); Gray, List B. part iii. p. 150 (1844); id- Gen. B. III. p. 633 

 (1846) ; Des Murs in Gay's Hist. Chil. Zool. I. p. 464 (1847) ; Yarrell; 

 P. Z. S. 1847, p. 55 (egg); Reichenb. Syst. Av. Natatores, pi. 11. figs. 

 69, 70 (1848); Gray, Hand-List B. III. p. 94 no. 10756 (1871), 

 Leybold, Excurs. Pampas Argentinas, p. 20 (1871). 



PoliocepJialus occipitalis Bonap. C. R. xlii. p. 775 (1856). 



Podiccps calipanciis, Scl. & Salv. Exot. Orn. II. p. 190 (1869); iid. P. Z. 

 S. 1869, p. 158 (Tungasuca)^ iid. Nomencl. Av. Neotr. p. 150(1873); 

 White, P. Z. S. 1883, p. 43 (Cosquin, Cordova); Scl. & Huds. Argent. 

 Orn. II. p. 204 (1889); Schalow. Zool. Jahrb. Suppl. IV. p. 651 

 (1898: Talcalmano ; Valparaiso). 



Podiceps caliparii/s, Scl. & Salv. Ibis, 1869, p. 284 (Chiloe); Cunn. Nat. 

 Hist. Str. Magell. p. 339 (1871). 



Podiceps calliparius, Scl. & Salv. P. Z. S. 1879, p. 641 (Potosi, 

 Bolivia). 



