35G PROCELLA.KIIDJ:. 



of the greater coverts pale sooty ; greater under wing-coverts 

 variegated with dirty white ; bill and feet black. Total length 

 about 7'50 inches, wing 5-3; tail, central rectrices 2-2, lateral 

 rcctrices 3-1 ; bill 0-75, tarsus 0-9, middle toe 0-85, outer toe 0-83, 

 inner toe 0*7. 



Hab. Coast of California. 



a. Ad.sk. San Miguel I., California {Captain Salviu-Godman Coll. 

 S. Forney: Henshaiv Coll.). 



10. Oceanodroma monorhis. (Plate II.) 



Thalassidroma monorhis, Sxdnh. Ibis. 1867, p. 386, 1869, p. 348 ; id. 



P. Z. S. 1871, p. 422 ; David 4- Oust. Ois. Chine, p. 515 (1877) ; 



Stejn. Pr. U.S. Nat. Mus. x. p. 414 (1887). 

 Oceauodroma monorliis, Sfejn. Pr. U.S. Nat. Mus. xvi. p. 622 (1893). 

 ProceUaria sp. inc., Pickett, Ibis, 1894, p. 225. 

 Procellaria monorhis, H. H. Slater, Ibis, 1894, p. 226. 



Adult female. Similar to 0. homochroa, hut a little larger ; greater 

 and raedian wing-coverts pale ashy, the edges of the former nearly 

 white : head plumbeous, the face paler ; under wing-coverts uniform 

 sooty. Total length about 7'6 inches, wiug 6 ; tail, central rectrices 

 2-2, lateral 2-9 ; bill O'S, tarsus 0"9, middle toe 0-9, outer toe a trifle 

 shorter, inner toe 0'7. 



Obs. There is a specimen of this species in the Tokyo Museum. 



Hab. Coast of China and Japan. 



a. 5 ad. sk. Amoy, China, Nov. 1866 (i?. Seebohm Coll. (Type 

 Stcinhoe). of the species.) 



11. Oceanodroma hornbyi. (Plate III.) 



Procellaria hornbyi, Gray, P. Z. S. 1853, p. 62 ; id. Hand-l. B. iii. 



p. 105 (1871). 

 Oceauodroma hornb^-i, Bp. Cunsp. Av. ii. p. 195 (1856); id. Compt. 



Rend. xlii. p. 769 (1856); Coues, Pr. Ac. Phil. 1864, pp. 75, 90; 



id. Key N. Am. Birds, p. 329 (1872), ed. 2, p. 782 (1884) ; id. 



Check^list N. Am. Birds, p. 127 (1882); Baird, Brew. 8,- Ridgw. 



Water-Birds N. Am. ii. p. 416 (1884); Ridyw. Man. N. Am. 



Birds, p. 70 (1887). 

 Thalassidroma hornbyi, Laivr. Birds N. Am. p. 829 (1860). 



Adult. Upper surface dusky brown, paler and greyer on the 

 upper portion of the back : hind neck greyish white, forming with 

 the white throat a cervical collar ; occiput, nape, and region round 

 the eyes black ; forehead, lores, and under surface white ; a dark 

 cinerous pectoral band ; wings black ; greater and median coverts 

 greyish sooty ; under wmg-coverts pale greyish sooty ; tail dusky 

 brown : bill and legs black. Total length about 8-8 inches, wing 

 6-7 : tail, central rectrices 2-7, lateral rectrices 3-9 ; bill 0-9, tarsus 

 095, middle toe 095, outer toe 0-92, inner toe 0-79. 



Hab. North-eastern Pacific Ocean. 



a. Ad. sk. N.AV. America. Miss Hornby [P.]. (Type 



of the species.) 



