62 CALIFORNIA ACADEMY OF SCIENCES _ [Proc. 4ru Ser. 
Puffinus carneipes Gould: FLESH-FOOTED SHEARWATER 
Puffinus griseus (Gmelin): Sooty SHEARWATER 
Puffinus tenuirostris (Temminck): SLENDER-BILLED SHEAR- 
WATER 
Puffinus nativitatis Siveets: CHRISTMAS ISLAND SHEARWATER 
Puffinus chlororhynchus Lesson: \WEDGE-TAILED SHEARWATER 
Puffinus bulleri Salvin: BULLER’Ss SHEARWATER 
Puffinus leucomelas (Temiminck): STREAKED SHEARWATER 
Coves—Pufinus leucomelas, II, 130, 144. 
Satvin—Puffinus leucomelas, 369, 370. 
GopMan—Puffinus leucomelas, xl, 72, pl. 21. 
THALASSIDROMINZ: Storm PETRELS 
Key to the Species 
General color dark 
WMailiwedge-shapediiay. eee. ose eee Halocyptena microsoma 
Tail nearly even or slightly rounded...... Thalassidroma pelagica 
Tail forked 
Upper tail-coverts more or less white 
Tail slightly forked; upper tail-coverts white........... 
RR Ee NRE Biren Ue cnet i Neb | Oceanodroma tethys 
Tail deeply forked; upper tail-coverts very broadly tip- 
pediawith) blacks sens ese e eer O. macrodactyla 
Tail at least slightly forked; tips of upper tail-coverts 
black; lateral rectrices definitely white at base for 
nearly an inch, or more.................:-. O. castro 
Tail decidedly forked; tips of upper tail-coverts more or 
less dark gray, becoming white with wear; lateral 
rectrices not definitely white at base for nearly an 
ETNIES oe perce olnnas tear are teenie aa OOS O. leucorhoa 
Upper tail-coverts not white 
A pale area on under wing-coverts........ O. homochroa 
No pale area on under wing-coverts 
Pileum and throat not sooty black 
Wings under 6:7 ins (170 mma) eee ee ee 
Ae PU Nia min O. leucorhoa (dark phase) 
Wing not under 6.7 in. (170 mm.) 
Upper tail-coverts with a drab patch........ 
Piaisial sine chatar don a nee Semone neon O. tristrami 
Upper tail-coverts without a drab patch..... 
ES Sah cH 2 ae a cea em na O. markhami 
Pileum and throat sooty black.:.......... O. melania 
General color not dark; tail forked 
Bluishieray, above and belowan. 22905. e et eee O. furcata 
White below, with dark jugular band................ O. hornbyi 
