PROCELLARIID.E — THE PETRELS — CYMOCHOREA. 



407 



it. No white on the rump. 



3. C. melania. Uniform fuliginous-dusky, lighter and browner beneath, the greater wing- 



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. Hab. South Pacific Ocean, 

 north to Lower California. 



4. C. homochroa. Smoky plumbeous, the wing-coverts lighter and more brown, remigea 



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. 

 Hab. Farallone Islands, coast of California. 



Cymochorea leucorhoa. 



LEACH'S PETREL. 



Procellaria leucorhoa, Vieii.l. Nouv. Diet. XXV. 181", 422. 



Cymoclwrca kucorrhoa, Coues, Pr. Ac. Nat. Sci. Philad. 18G4, 76; Key, 1872, 329; Check List, 

 1873, no. 588 ; ed. 2, 1882, no. 823. — Ridgw. Norn. N. Am. 15. 1881, no. 723. 



Procellaria Lcachii, Temm. Man. II. 1820, 812. 



Tlialassidroma Lcachii, Bonap. Synop. 1828, no. 309; Consp. II. 1856, 193. — Nl'tt. Man. II. 

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

 in Build's IS. N. Am. 1858, 830. — B.uun, Cat. N. Am. B. 1S59, no. 642. 



Procellaria Bullockii, Fleming, Brit. An. 182S, 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. 



