1915 HYPOTHETICAL LIST 175 
2 (26) Brachyramphus craverii (Salvadori) 
CRAVERI MURRELET 
Status—Recorded by Van Rossem (Condor, xvi, 1915, p. 74) as having been 
obtained in numbers on the ocean ‘‘about midway between San Diego and’’ Los 
Coronados Islands, thus very close to the California-Mexico boundary. Even if 
well within Californian limits, the case demands further study on the ground of 
questionable differentiation of B. craveru from B. hypoleucus. A hasty glance 
at the material in the Museum of Vertebrate Zoology leads me to suggest age as 
accounting for at least some of the alleged characters. 
3 (56) Larus canus Linnaeus 
Mew GuLuL 
Status—Not one of the eight records of this species for California is likely 
to have been based on specimens identical specifically with the palearctic Larus 
canus. In at least one case (Beck, Proc. Calif. Acad. Sci., 4th ser., m1, 1910, p. 
63) the name canus is used as replacing the name brachyrhynchus, the latter be- 
ing reduced to a synonym of the former. In other cases, either the basic speci- 
mens are not now accessible or they have turned out to be other species. (See 
Linton, Condor, 1x, 1907, p. 199; Bishop, Condor, xu, 1910, p. 174.) 
4 (4, hyp.) Creagrus furcatus (Neboux) 
SWALLOW-TAILED GULL 
Synonyms—Xema furcata; Larus furcatus. 
Status—Stated by Prevost and Des Murs (Voyage of the Venus, 1855, p. 
277, pl. x of Atlas) to have been taken at Monterey. Several birds of tropical 
America are also ascribed to Monterey. The expedition touched the coasts of 
Peru, Chili, the Galapagos Islands (where this gull is well known to oceur), and 
San Blas, as well as Monterey in upper California, and it looks as though there 
might have been some mixing of labels. Under these circumstances, little faith 
can be placed in this record alone. The species has been more recently reported 
as “‘seen’’ off San Diego (Anthony, Auk, x11, 1895, p. 291), still not quite satis- 
factory enough evidence to establish it in our list. 
5 (82.1) Diomedea immutabilis Rothschild 
Laysan ALBATROSS 
Synonyms—Diomedea melanophrys; Spectacled Albatross. 
Status—An individual ‘‘seen’’ at a distance, ‘‘about 1060 miles west of Cape 
Mendoeino’’, October 31, 1880 (Bean, Proc. U. S. Nat. Mus., v, 1882, p. 170). 
Even if authentic, this is somewhat beyond our limits, as is, even, the recorded 
occurrence of two individuals 750 to 600 miles ‘southwesterly from San Fran- 
cisco’’ (Willett, Condor, xv, 1913, p. 158). My authority for putting Bean’s 
record under D. immutabilis is Godman (Mon. Petrels, 1910, p. 336). The spe- 
cies is plentiful in the vicinity of the Hawaiian Islands, 
