152 PROCEEDINGS OF THE ACADEMY OP 



States Wilkes' Exploring Expedition collection ; and is, therefore, in all 

 probability, tlie very individual upon which Mr. Peale based his description 

 of (]u'aris ; which name should, tlierefore, stand for the species, in the event 

 of its proving valid ; even though Pealc's description does not notice the 

 peculiar markings of the primaries. 



Bihlloip-aphij. It is possible that the P. meJanopHs of Gmelin and Latham 

 was based upon this species. Their bird evidently was an ^-Estrthna, and 

 "thirteen inches long ; ' and the description of the colors would apply pretty 

 well to an immature mollis. But mollis has a bill by no means an inch and a 

 half long ; and is not found, so far as we know, " circa American! septen- 

 trionalis." The only known North American species of yEstrelata is the 

 luesitatn ; of which the bill is nearly of the length stated by Latham. Under 

 the circumstances, I do not think this name is to be adopted for ei her species. 



I think there can be no doubt that the incrpectnla of Forster is really this 

 species. I find no points of the description, nor any of the measurements, at 

 all incompatible with this supposition. Dr. Lichtenstein refers inexpeciata to 

 grisea of Graelin ; certainly incorrectly, whatever may be its relations to 

 (jrisea of Kuhl. 



The name mollis Gould bears the same date of publication as inexpectata, 

 (1844) : so that it is difficult to say which actually has priority, I think, if 

 any choice is allowed us, we should, by all means, use mollis, so definitely 

 characterized and well known. Mr. Gould, in describing the species, says 

 that it had been identified with hi-ji-ns of Banks, and with f/ri^ea of Kuhl (nee 

 Gm.) This may very possibly be the case ; although, for the present, I give 

 qrisea Kuhl, (of which lurjens Banks is a synonym,) as a distinct species, 

 f )r reasons stated elsewhere. 



In the Ibis, as above, Mr. G. R. Gray has a species P. Phillipii from Norfolk 

 Island; based upon the "Norfolk Island Petrel," Phill. Lot. Bay, p. 1(51 ; 

 with P. alba, var. Lath., and P. mollis Gould, as synonyms, the latter queried. 

 No description is given, and I merely follow Gray himself, in placing the 

 name as a queried synonym of mollis. Vieillot, (Nouv. Diet., xxvi. 1817, p. 

 420,) refers to this same "Norfolk Island Petrel." 



iEsTRELAT.v CooKii (Gray) Coues. 



Poriillaria Coolcii. G. R. Gray, Fn. N. Z. App. Dieflf. Trav., 1843, ii. p. 199.— 

 Id. Voy. Ereb. and Terror, pt. iii. 1844, pi. 35.— Id. Sclater's Ibis, 

 1862, iv. p. 246. Cassin, U. S. Expl. Esped. Ornith., 1858, p. 414, and 

 of authors. 



Jihantistes Coolcii, Bonap. Compt. Rend. xlii. p. 708. 



Procellriria leuroptcra, Gould, P. Z. S. xxii. 1844, p. .07. — Id. Ann. Mag. N. 

 H. x'ii. 1844, p. 3(J4.— Id. Birds Aust. pi. 51. 



Coolilarin Inicoptera, Bonap. C. A. 1855, ii. p. 190. 



Coohiliria relor, Bonap. C. A., 1855, ii. p. 190, ex Pr. vclox of Solander. Not 

 relax of Banks, supposed to be one of the Protiea'. 



]ili(intist<s relox, Bonaparte, Compt. Rend. xlii. 1856, p. 768. 



Prort'llaria hrerijie^,'-^- Peale, Zool. U. S. Ex. Ex. Bds., 1848, p. 294. 

 Jlithildt. — Southern Oceans, at large. 

 /orm.f Bill much compressed, except at the extreme base, where it is 



nearly as wide as high ; much shorter than the skull ; about equal to the 



tar>us ; one of the most slender in general shap" of this genus. The lateral 



superior sulcus is nearly straight, being only a little sinuate ; the outline of 



the inferior mandibular rami and of the gonys both a little concave, the pro- 



* Feale, as ahove. "Head an I wings Booty black; tail and back gray; throat, breast, and 

 belly wbitp, tiuf^ed with .salmon color when living: inferriipt«d plumbeous b.nd across the 

 breast; t«o outer tail ti-atlic™ li.;ht gray, white beneatli ; .shaf.s white ; all the other.s brown : 

 under wing coverts wliitn; lesser ones nearly black. Bill blaik ; feet pale flesh; toes black at 

 their ends. Length J.0-70; e.xteut 2t 25; culmen nineteen- twentieths ; middle toe and claw 1.3(J." 



t From specs, in Philada. Acad, and Mus. Sniithsou. 



[May, 



