natural Sciences of Philadelphia. 211 



SPHENISCUS DEMERSUS, Var. MAGELLANICUS. 



? Le manchot des Hottentots; manchot a bee tronque: P. E. 1005 (whether 

 this var., or true demersus is uncertain). 



Collared pinguin, Lath., Gen. Syn. vi. 571 ; Lath., Gen. Hist. x. 1824, 391. 



Magellanic pinguin, Lath., Gen. Syn. vi. 569 ; Gen. Hist. x. 1824, 383. 



Aptenodytes magellanicus, Forst., Comm. Soc. Eeg. Sc. Gott. iii. 1871, 143, 

 pi. 5. Lath., Ind. Orn. ii. 880. 6m., S. N. i. 1788, 557. (Based on 

 Fokst., 1. c, and Mill., 111. t. 34.) Peale, U. S. Ex. Ex. 1848, 258 

 and 335, No. 692. Cass, U. S. Ex. Ex. 1859, 335, 450, No. 692. 



Spheniscus magellanicus, Sclater, P. Z. S. 1860, 382. 



Eudyptes (Pygoscelis) magellanicus, Gray, Handl. iii., 1871, 99. 



Aptenodytes torquata, Fokst., 1. c. p. 146. Gin., S. N. 1788, 558. Lath., 

 Ind. Orn. ii., 1790, 880. 



''Aptenodytes plutyrliynchus, Scopoli." (Manchot a collier, Sonnerat, 

 Voy.,180. pi. 114.) 



" Aptenodytes fuscirostris, Illiger." 



Aptenodytes brasiliensis, Light., eel. Forst. Descr. Anim., 1844, 355. 



Spheniscus magnirostris, Peale, Orn. U. S. Ex. Ex. 1848, p. 263, pi. 71, 

 f. 1, et p. 335, No. 698, teste spec, typic. ipso ! Deincle S. demersus, Cass, 

 Orn. U. S. Ex. Ex. 1859, 354, specimen eundem referens. 



SpJte?iiscus demersus, Abbott, Ibis, 1860, 366. 



Spit, demerso similis, sed major, notwo obscuriore, necnon collo antice tor- 

 quato, fascia, fusea per regionern inter gulam et pectus transducta. 



Habitat cum proecedente. 



No. 15,659, mounted, in immature plumage, Tierra del Fuego, 

 TJ. S. Expl. Exped., T. R. Peale : type of Apt. magnirostris Peale. 

 The bill is one of the smallest (of Spheniscus proper) we have seen ; 

 the rugous parts are shrunken, and much of the bill is yellowish; 

 the upper parts are lighter and bluer than is usual in this variety, 

 and much as in ordinary demersus. There is no trace of the dark 

 breast-band or of the lateral stripe; but the cervical half-collar 

 distinctive of magellanicus is plainly apparent. This* has decided 

 us as to the proper determination of the specimen ; and of course, 

 with this identification, comes the reference of Peale's magniros- 

 tris, and Cassin's " demersus," here instead of to true demersus. 

 In fact, we find the specimen labelled "magellanicus?" in a hand- 

 writing we do not recognize, and we observe that Mr. Cassin has 

 queried his private No. G83, which refers to his catalogue {op. cit. 

 p. 450, No. 683), although there and on p. 354 (op. cit.) he lets the 

 name " demersus" stand. 



No. . . . 15,669, adult in perfect plumage, mounted, Tierra del 

 Fuego, U. S. Ex. Ex., basis of Peale and Cassin, 11. cc. Bill, and 



