PROCELLARIID^ — THE PETRELS — CYMOCHOREA. 



407 



B. No white on the rump. 



3. C. melania. Uniform fuliginous-dusk v, lighter and browner beneath, the greater win"- 



coverts and outer webs of tertials light grayish brown. Wing, 6.80 inches ; tail, 3.90, 

 forked for 1.20 ; culmen, .60 ; tarsus, 1.20 ; middle toe, 1.00. Hah. South Pacific Ocean, 

 nortli to Lower California. 



4. C. homochroa. Smoky plumbeous, the wing-coverts lighter and more bro\vn, remises 



and tail dusky, rump and upper tail-coverts ashy plumbeous. Wing, 5.30-5.40 inches ; 

 tail, 3.30-3.50, forked for .70-.90 ; culmen, .50-55 ; tarsus, .80-.90 ; middle toe, .75-80. 

 Hah. Farallone Islands, coast of California. 



C. leucorhoa. 



C. melania. 



C. homochroa. 



Cymochorea leucorhoa. 



LEACH'S PETREL. 



ProceUaria leucorhoa, Vieii.l. Nouv. Diet. XXV. 1817, 422. 



Cymochorea Icucorrhoa, CouEs, Pr. Ac. Nat. Sci. Philad. 1864, 76 ; Key, 1872, 329 ; Check List, 

 1873, no. 588 ; ed. 2, 1882, no. 823. — Ridgw. Nom. N. Am. B. 1881, no. 723. 



ProceUaria Lcachii, Tem.m. jMan. II. 1820, 812. 



Thalassidroma Leachii, Bonap. Synop. 1828, no. 309; Consp. II. 18.56, 193. — Nl'TT. Man. II. 

 1834, 326. — AuD. Orn. Biog. III. 1835, 424 ; B. Am. VII. 1844, 219, pi. 459. —Lawrence, 

 in Baird's B. N. Am. 1858, 830. — Baird, Cat. N. Am. B. 1859, no. 642. 



ProceUaria Bullockii, Flemino, Brit. An. 1828, 136, no. 219. 





Hab. North Atlantic and Pacific oceans, south to Virginia (Petersburg, Va., and Potomac 

 River, near Washington, D. C. !), and Aleutian Islands ; breeds from the coast of Maine northward. 



