A36 PUFFINUS YELKOUAN.—P. ASSIMILIS. 
PUFFINUS YELKOUAN (Acerbi). 
[§ 5115. One.—* Grecia,” 1863. From Dr. Kriiper, through 
Herr Seidensacher, 1864. 
Inscribed by Dr. Kriiper “ P. obsewrus,” under which name the species is 
included by him and Dr, Hartlaub in their account of the birds of Greece and 
Ionia (Griechische Jahreszeiten, iii. p. 299); but they there identify it with 
P. yelkouan, and the former states that it is found in the sames places as 
“« P. cinereus” (that is P. kuhli), but is somewhat scarcer. Its single egg is 
usually laid so deep among loose stones that it is hard to reach. It breeds 
two or three weeks earlier than the other species (cf. etiam J. f. O. 1863, 
pp. 335, 336). ] 
PUFFINUS OBSCURUS (Gmelin). 
DUSKY SHEARWATER. 
[§ 5116. One.—Bird Rock, Barbados, 9 May, 1888. 
“W.H.F.” From Captain Feilden. 
One of two received by me from Captain (now Colonel) Feilden with five 
skins—one that of an adult marked “male,” and four of young birds with 
more or less down upon them. I immediately sent the former and two of the 
latter to Mr, Salvin, and he wrote that they certainly belonged to Puffinus 
anduboni, though he could not then pledge himself as to its specific distinctness 
from P. obscurus. In his catalogue of the specimens of Tudinares contained in 
the British Museum (Cat. B, Br. Mus. xxv. p. 383), published in 1896, he united 
P. auduboni to P. obscurus. These eggs are, naturally enough, very like those 
which Dr. Frere used to receive from the Desertas (§ 5117) as those of 
P. obscurus, but are now referred to P. assimilis. The other egg and three 
of the skins I returned to Colonel Feilden, whose notes on the breeding of 
this species (under its synonym P. auduboni) will be found in ‘ The Ibis’ for 
1889 (pp. 60-63 and 503). } 
PUFFINUS ASSIMILIS, Gould. 
§ 5117. Five.—Desertas, Madeira, 1850. From Dr. Frere. 
Dr Frere writes, 8 October, 1850: “ Would you like a specimen 
(badly blown) of Puffinus obscurus? I have it with the bird” ; and 
more recently he says that Mr. G. R. Gray believes the bird to be 
