Vou. II, Pt. 11] LOOMIS—A REVIEW OF THE TUBINARES 53 
Pterodroma axillaris (Salvin): CHATHAM ISLANDS’ PETREL 
Satvin—Céstrelata axillaris, 399, 418, pl. 7. 
GopmMan—C¢strelata axillaris, xlvi, 252, pl. 72. 
Mr. Gregory M. Mathews has apparently demonstrated 
that Pterodroma Bonaparte has line priority over strelata 
Bonaparte.* 
MEASUREMENTS (in millimeters) 
Upper Mandible r Middle 
No. Locality Sex | Wing] Tail | Cul- ar-|Toe and 
| men | Depth | Width | sus | Claw 
24346 2 | Chatham Is..... o | 215 93 |24 8 10.3 |30 Si oil 
24347 2 fe Soy sae Q | 214} 93 |24 8.5 | 10.5 |30 35.8 
208604 2 of Seen — | 220} 94 /23.4, 8.2} 11 28.3) 37.9 
208605 3 ee aD ine — | 216! 92 |23.4| 8 10.5 |30.5) 38 
Pterodroma hypoleuca (Salvin): WHITE-BREASTED PETREL 
SaLvin—Cistrelata hypoleuca, 398, 409. 
GopMaN—Cstrelata hypoleuca, xlvi, 212s ple 58: 
In some examples of P. hypoleuca the tail is more than half 
as long as the wing (see subjoined measurements), and is 
graduated for more than one third of its length. Evidently, 
the tail characters can not be entirely depended upon to dis- 
tinguish Bulweria from Pterodroma. 
MEASUREMENTS (in millimeters) 
5 Middle 
No. Locality Sex | Wing | Tail | Cul- Upnee Bens Tar- |Toe and 
men} Depth sus | Claw 
189403 4 Laysan L., Haw. Arch. fot 114/25.8 35.4 
23470 § oh 115}25.7 37 
9270 © 7 ih ty | ee 114)25.9 34.9 
92746 “ 3 pe rellavee 116)25 37.6 
9272 6 be B Se NO. 105/25 .2 36 
9273 § 8 re pave ee) 113}26.3 36.5 
5663 7 > “ Sea. 114/25 .6 36 
5664 7 2 - eee 117|25.8 35.9 
1 Birds Austr., v. 2, pp. 131, 132; cf. B. O. U. List, 2d ed., p. 398. 
2 Carnegie Mus. 
3U.S. Nat. Mus. 
4U.S. Nat. Mus. 
5 Mus. Vertebr. Zool., Univ. Calif. 
6 Coll. J. E. Thayer. 
7 Stanford Univ. 
