354 PROCELLARIID^. 



The difficulty surrounding this species has heeu removed by 

 the kind transmission, by the authorities of the Paris Museum, of 

 the type to I,ondou for comparison with the allied forms. Having 

 also before me two of the specimens recently described by Mr. 

 Ridgway as 0. fownsendi, I am able to make a thorough exami- 

 nation of the two birds, and find them to belong undoubtedly to the 

 same species, the very slight differences in measurement being 

 quite within the range of dimensions given by Mr. Eidgway of 

 0. townsendi. 



It thus appears that Dr. Coues's original determination of 

 Bonaparte's Procellarla melania was quite correct, notwithstanding 

 Pucheran's erroneous measurements, that 0. townsendi is a synonym 

 of 0. melania, and that 0. marlchanii is a distinct species, as is also 

 the bird from Japan in Canon Tristram's collection attributed to 

 0. melania by Mr. Seebohm. 



Hah. Coast of Lower California and Gulf of California. 



7. Oceanodroma markhami. 



Cymochorea markhami, Sah. P. Z. S. 1883, p. 430 ; Tacz. Orn. 



Per. iii. p. 462 (1886). 

 Oceanodroma markhami, Ridyw. Man. N. Ajn. Birds, p. 71 (1887). 



See Stejn. Pr. U.S. Nat. Mus. xvi. p. 621 (1893). 



Adult female. Sooty-brown, nearly uniform, entii-e head tinged 

 with plumbeous ; greater and median wing-coverts paler sooty ; tail 

 deeply forked ; the rectrices uniform sooty-black : bill and legs 

 black. Total length about 9 inches, wing 7 ; tail, central rectrices 

 2"4o, lateral rectrices 3-75 ; bill U-9, tarsus 0"95, middle toe 0'95, 

 outer toe 0-92, inner toe 0-8. 



Hab. West coast of Peru. 



«. 2 ad. sk. Coast of Peru, lat. 10° 40' S., Salvin-Godman Coll. ) 



long. 7n° W. (Capt. A. H. [ 



Markham). f 



b. $ ad. sk. Coast of Peru, lat. 23° S., long. Salvin-Godman Coll.) 



73° W. {A. H. M.). (Types of the species.) 



8. Oceanodroma tristrami. 



Procellaria melania, Seeh. {nee Bp.) Birds Jap. Emp. p. 270 (1890). 

 Oceanodroma mai-khami, Stejn. Pr. U.S. Nat. Mus. xvi. p. 621 (1893). 

 Oceanodroma tristrami, Stejn. MS. 



"Adult male (No. 9781, coll. H. B. Tristram ; Sendai Bay, Japan, 

 July 1874). Anterior portion of head, all round, sooty-greyish 

 brown (decidedly darker than in 0. Jwniochroa), changing gradually 

 to sooty-blackish slate on hinder crown, occiput, and liind neck, 

 and to deep greyish sooty-brown on fore neck and chest ; rest of 

 uuderparts light grejish sooty-brown, each feather indistinctly 

 tipped with darker (colour of chest), producing a very faint trans- 

 versally mottled appearance, the under tail-coverts, however, uni- 

 form, though the colour gradually becomes darker towards ends of 

 the longer feathers ; under wing-coverts uniform light greyish sooty- 



