AEP P WIN 1X. 
The circumstances which necessitate this Appendix being fully set forth in 
the first paragraph of the Preface to this edition, it only remains to direct atten- 
tion to the marginal reference numbers, which indicate the exact point in the 
body of the work where the new matter is to be interpolated. 
{1.) Page 4,Gunus AECHMOPHORUS: 
4. clarkii is almost certainly only the female of . occidentalis. 
(2.) Page 14, Synthliboramphus wumizusume: 
There appears to be no reason for considering this species as North Ameri. 
can. (Cf. Stesneaer, Proc. U.S. Nat. Mus, ix. 1885, 524.) 
(3.) Page 38, a. Creagrus is a good genus, and the species following should be 
called Creagrus furcatus. (Cf. Ripaway, Proc. U.S. Nat. Mus. xii. 1889, 117.) 
(4.) Page 57, Genus FULMARUS: 
The subspecies of F. glacialis are probably reducible to two, an Atlantic 
and a Pacific form. The older name for the latter is F. rodgersti, which was 
based upon a very light-colored individual. If this view of the case be correct, 
F. glacialis glupischa and the more recently described F. g. columba (ANTHONY, 
The Auk, xii. April, 1895, 105) become synonymes of fF’. g. rodgersit, and F. g. 
minor is a synonyme of Ff. glacialis proper. It is possible that had we good 
series of specimens from all the breeding localities of the species, the above- 
mentioned supposed forms could be clearly defined; but I have very serious 
doubts whether their validity can be demonstrated otherwise. 
(5.) Page 65, under /?: 
Related to 44. pheopygia is 4. hypoleuca, the comparative diagnostic char- 
acters of the two being as follows: 
g'. Larger, and darker above; upper tail-coverts grayish dusky, very abruptly 
white beneath the SUrface......ccccccsseccssceeeeseesceseescoeessenes ZB, pheopygia. 
g?. Smaller, and paler above; upper tail-coverts ash-gray, much less abruptly 
white beneath the surface; wing 8.80-9.20, tail 4.50-4.75 (graduated for 
683 
