G. SPHENISCTS. 651 



_ Adult. Very closely allied to S. demersus, but the white super- 

 ciliary striijo is much narrower and the curved black pectoral baud 

 considerably wider. Tail composed of 2U feathers. Total length 

 about '27 inches. 



_ Immature. Differs from the adult in having the chin, throat, and 

 sides of the head smoky-grey mixed with whitish ; the sides and 

 h-ont of the nock smoky-brown, and the pectoral band entirely absent. 

 This coloration of the head is remarkable, for the whitish-grey 

 parts are black in the adult, while the dark smoky-brown of the 

 front and sides of the neck become white: in fact the pattern 

 remains, but the coloration is reversed. 

 Bill. 



Gape Exposed fij,,,„>„ rp-, Middle toe 



to tip. culmen. i^J'PP'-'-. lad. ^^,,,i ^.j^,^,. 



i"- in. in. in. in. 



6 3-05 2-6 s-4 1-4 2-i» 



Ilah. West coast of South America, Peru and Chili. 



a. Imm. st. West coast of South Turchased. 



America. 



b. Imm. sk. Iquique, Peru {II. Row- .Salvin-Godmau Coll. 



land). 

 '•• cT a<l. ,^k. Cliih, Oct. 8. Zool. Roc. Coll. 



d, e. Ad. et imm. sk. Chili ( Weishcmpt). Salviu-G.idmau Coll. 



/• '^tl. sk. Valparaiso. Capt. W. S. Prett 



[I'-]- 



3. Spheniscus magellanicus. 



Aptenodytes miigellaniea, Forsfer, Comment. Gottini/e7isis,m.Yi. 143, 

 pL v. "81) [Straits of Magellan; Staten I.; Ti'ena del Fuego ; 

 Falkland Is.l ; r'd. Icon. ined. pi. 8-3 ; Gmel. S. jV. i. pt. ii. p. .5.^7 

 (1788); Latham, Ind. Orn. ii. p. 8.^0 (1700): 3Idlei; Cimelia 

 r/n/sitn, pi. xxsiv. (17!lO) ; LMt. ed. Forst. Descrip. Anim. 

 p. ."ir)! (1844) ; Cuiminf/ham, Ibis. 1868, ]). ll'fi. 

 Maii-ellanic Piuguiu, Latham, Gen. Sijn. iii. pt. ii. p. ,5tJ9 (1785); id 



Gen. Hist. X. p. :J83 (1824). 

 Aptenodyta magellanica, Bonnat. Tahl. Enciicl. Mcth. i. p G9, 



pi. 18. fig. (1790). 

 Piny-uiuaria uiagellanica, Shau^ in Miller, Cimelia I'hi/sica, p. 07 



(1790). 

 Jack-ass Penguin, Weddell, ]'<>ii. South Pole, p. 'u (182-')) [South 



Georgia : habits]. 

 Spheniscus magellanicus, Steph. in Shaicg Gen. Zool. xiii. pt. i. p. 6-5 

 (182.5) ; G. H. Gray. List Ii. pt. iii. p. l-w (1844) [Hermit 1. 1 ; 

 id. Gen. B. iii. p. (540 (1846) ; Beichenh. Natatores, pi. ii. tig. 736 

 (1800); Cissin, U.S. Krpl. Exped. p. 303 (18.58) [Orange 

 Pay, Cape Horn]; Abbott, Ibis, 1860, p. 1(3 [Falkland Is.]: 

 Sclater, P. Z. S. 1860, p. 390 [Falkland Is.]; id. P. Z. S. 1868, 

 p. 527 [E. p'alklandj ; Sclater c^ Salvin, Ibis, 1869, p. 284 [Sta.- 

 Magdalena] ; iid. P. Z. S. 1878, p, (i53 ; Sclater, P. Z. S. 1879, 

 p. .SI 1 ; Sclater .V Salvin, Voi/. ('hall., Zool., Birds, p. 12."), pi. xxviii. 

 ( 1 880) [Port Churrucha ; Magellan ; Falkland Is.] ; Sharpe, P. Z. S. 

 1881, p. 17 [Tom Bav]; Scluiir, P. Z. S. lss2,' p. .547; id. Ibis, 

 1889, p. 144 [Rio de la Plata]; Berlepsch, Ibis, 1889, p. 258 [Rio 



