JESTRELATA. 65 



with claw, 1.83-1.00. ILib. South At- 

 lantic (ish'.nd of Trinidad). 



JE. arminjoniana Giol. & S.\lvad. Ar- 

 minjon's Petrel.' 



A'. Tail 4. GO, or less; oulmei) 1.10, or loss. 



Similar in color to JE. arminjoniana, but 

 much darker above, the color inclining to 

 uniform sootj' black throughout, the fore- 

 head and chest more brownish; wing 

 10.50-11.10, tail 4.40-4.60, culmen 1.08- 

 1.10, tarsus 1.28-1.35, middle toe, with 

 claw, 1.70-1.78. Hab. South Pacific 

 (Hondon and Christmas Islands). 

 JE.. parvirostris (Peale). Small-billed Petrel.' 

 /'. Axillars and under wing-coverts mostly white. 



Upper parts, including hind-neck and upper tail- 

 coverts, uniform brownish slate, darker on wings 

 and tail and nearly black on head, the feathers of 

 hind-neck and the upper tail-coverts (the latter 

 very abruptly) white beneath the surface ; fore- 

 head, lores, cheeks, and entire lower parts white, 

 (.5,) the sides and longer lower tail-coverts sometimes 



irregularlj- barred with dusky; wing 11.80-12.00, 

 tail 5.50-5.75 (graduated for about 2.40), culmen 

 1.22, tarsus 1.40. middle toe, with claw, 1.78. Hab. 

 Middle Pacific, from Sandwich Islands to the 

 Galapagos. 



JE,. phseopygia Salt. Dark-rumped Petrel.' 

 P. Wing less than 9.00. 



Plumage much as in ^. pJia'opyijia. but back, scapulars, and 

 upper tail-coverts decidedly plumbeous, the latter not white 

 beneath surfiice; wing 8.35-8.60, tail 3.80-4.00 (gradu- 

 ated for about 1.10-1.40), culmen .95-.98, tarsus .95-1.05, 

 middle toe, with claw, 1.30-1.32. Hab. Southern oceans 

 generally. 



JE. brevipes (Peale). Short-footed Petrel.' 

 c'. Upper tail-coverts plain white, in marked contrast with color of back. 



' .lEttrelala arminjoniana GlCL. & Saltad., Ibis, 1869, 62. Saltin, Rowley's Orn. Misc. pt. iv. 1876, 252, 

 pi. 31. 



• P-oecUaria parrirmlrit Peale, ZooI. U. S. Expl. 1848, 298, atl. pi. 40. ./Eslrelala panirottrit CorES, 

 Pr. Ac. l\at. Sci. Phil. 1866, 146. 



' CEtlrelata phrrnpygia SK\.v\f, Trnns. Zool. Soo. LontJ. ix. pt. ix. 1875, 507, pi. 88, fig. 1. (Galapngos.) 

 ? (Talrelala lanilwicheniii) RiDGW., Water B. N. Am. ii. 1SS4, ,^95, in text. (Sandwich Islands.) 



♦ Procrllnrin breripti Pkale, Zool. U. S. Expl. Exp. Birds, 1848, 294.— yEtlrelatn brrripet Stejn., Proc. 

 r. P. Nat. Mus. ivi. 1893, 619. (Synonymcs are: Pmcellaria lorqunla Macgilliv. — Procellaria cookii Cass., 

 ncc Gray, nee GocLD. — Procellaria detolala Schlegel, part, iiec Gmel.) 



9 



