Vot. II, Pr. II] LOOMIS—A REVIEW OF THE TUBINARES 89 
In the Academy’s series, the coloration in the dark phase 
ranges from dark mouse gray to smoke gray above, and from 
drab-gray to pale smoke gray below. In the light phase the 
coloration ranges from nearly uniform white to olive-gray 
above, and from all white to white suffused with gray below. 
Between pale examples of the dark phase and dark examples 
of the light phase are intermediates not readily assignable to 
either phase. Whether the connecting birds are immature or 
not is an open question. 
In extreme light birds, the white of the mantle is increased 
by bleaching and wearing off of the gray tips of the feathers. 
Faded examples of dark birds are not uncommon in fall and 
winter, the fulmar grays apparently not being very resistant. 
No. 9983 C. A. S., dark phase, is somewhat albinistic, having 
a large irregular white patch on the posterior portion of the 
crown. 
Many specimens, at least, have a series of distinct striz on 
the inner side of the upper mandible. 
In the following table are given the dimensions in milli- 
meters of two hundred and thirty-two Pacific specimens, eighty 
males and one hundred and fifty-two females. 
(ipo Weaeine Middle 
Sex | Wing | Tail | Culmen Tarsus |Toe and 
Depth | Width Claw 
Maximum 320.050... o' | 323 | 124 | 40.7 | 14.4 | 20.5 | 51.8 | 71 
Minimum........... o | 285 | 106 } 34.6 | 11.8 |} 15.3 | 43 58 
Wiener yee aes o | 307 | 114 |} 37.8 | 13 17.5 | 46.5 | 63.5 
Maximum........... 9 | 322 | 122 | 40 13.8 | 18.6 | 48 67.2 
Minimum........... 2 | 280 99 | 32.5 | 10.5 | 14.1 | 39.5 | 52.1 
INSET ie Neg ie en sgnes 9 | 302 | 112 | 36 12.2 | 16.5 | 43.8 | 61.1 
Inasmuch as the females average smaller than the males, it 
is obvious that Mr. Anthony in proposing “Fulmarus glacialis 
columba,’ based on the dimensions of six females, mistook 
sexual variation for geographic variation.* 
Forty typical examples of the two phases show the follow- 
ing measurements in millimeters. 
Light phase: Ten males; wing 299-322 (314) ; tail 113-122 
(117) ; culmen 36-40.6 (38.6) ; depth of upper mandible 12.2- 
1Cf. Auk, v. 12, p. 107. 
