174 CALIFORNIA ACADEMY OF SCIENCES [Proc. 41H Ser. 
29 x 23.1:. 29x23) 2923: 29 29-7) 286i 22183 2810 x 
22.5 * 28:6 X2225,>28:5 kX 22,6 28.9 22-4 Ope eee Ot 
2V6 28% 25.52 28s 22 O27 eZ 
Oceanodroma markhami (Salvin): MARKHAM’s PETREL 
SaLvin—Oceanodroma markhami, 347, 354. 
GopMAN—Oceanodroma markhami, xxxvi, 27, pl. 7. 
A female was shot by Mr. R. H. Beck on August 1, 1905, in 
latitude 13° 28’ N. and longitude 108° 52’ W., and a male on 
September 1, 1905, thirty miles south of Cocos Island—about 
latitude 5° N., longitude 87° W. ‘These captures extend the 
known range of this species into the Northern Hemisphere. 
The “‘types” (two females) came from the coast of Peru and 
remained unique until Mr. Beck’s rediscovery of the species, 
more than twenty-one years after Mr. Salvin published his 
original description of it.* 
Recently, Capt. R. Paefsler has recorded the occurrence of 
this petrel in December and February off the west coast of 
South America between latitude 9° and 23° S.? North of the 
Equator its status is probably that of a migrant from the 
Southern Hemisphere. 
Both of the specimens taken by Mr. Beck are apparently 
having a complete renewal of plumage. Their measurements 
in millimeters are as follows: 
No. 658; ¢; wing (moulting) 176; tail 94; culmen 18; 
tarsus 23; middle toe and claw 23.1. 
No. 592; 2; wing (moulting) 177; tail 92; culmen 18; 
tarsus 22.9; middle toe and claw 24.4. 
Oceanodroma melania (Bonaparte): BLACK PETREL 
Cours—Cymochorea melania, 1, 76, 90. 
SaLtvin—Oceanodroma melania, 347, 353. 
GopmMaN—Oceanodroma melania, xxxvi, 24, pl. 6. 
While the little schooner Mary Sachs was becalmed on the 
10th, 11th, and 12th of August, 1903, fifteen to twenty-five 
miles west of Point Reyes, California, the ornithologists of the 
Academy’s Revilla Gigedo Expedition saw many Black, Ashy, 
and Fork-tailed petrels flitting about over the ocean. A series 
1P. Z. S., 1883, p. 430. 
2J. £. O., 1913, v. 61, p. 49; 1914, v. 62, p. 277. 
