34 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



The exact status of the forms most nearly related to //. jMlliatus 

 are, with the scant material available, exceedingly puzzlmg. It is 

 not at all certain that //. galapagensis and H. frazari should be 

 referred to that species, as geographic forms, but I have done so for 

 the reason that the individual variation in //. frazari is very great, 

 tending, on the one hand, to great exaggeration of the originally 

 ascribed characters and on the other toward //. imUiatus. Whether 

 the specimens from Isabella Island and San Mateo, western Mexico, 

 should be referred to //. frazari or to H. palliatus, or to either, I can 

 not decide; they are so much like the latter in coloration that were 

 it not for the question of locality there would be little hesitation in 

 referring them to that form. The same applies to the specimens 

 from Chile, which, however, certainly are not either H. frazari or 

 H. galapagensis. The material examined convinces me of the desira- 

 bility of careful investigation of the subject with the aid of more 

 abundant material, and also of the probability that several addi- 

 tional subspecies of H. palliatus require recognition. 



Atlantic and Gulf coasts of United States and Gulf coast of Mexico; 

 north (breeding) to Virginia (formerly to New Jersey); formerly 

 occurring casually or irregularly to eastern Pennsylvania (Chester 

 Island, Delaware Kiver), New York harbor (1 spec, May 28, 1877), 

 Long Island (Greenport; Ponquoge; South Side Meadows), Massa- 



Footnote — Continued . 



Locality. 



Middle 

 toe. 



MALES— continued. 



One adult male from Peru (Bay of Chilca) (H. p. —r). 



One adult male from Chile (Algaroba) (//. p. —f) 



Four adult males from Galafagos Island (U. p. gala- 

 pagensis) 



adult males from Pacific coast of Mexico ( H. p. 

 frazari) 



FEMALES. 



Five adult females from Atlantic coast, United States. 



Five adult females from Bahama Islands {H. p. prattii). 



One adult female from Pacific coast, Mexico (Isabella 

 Island) (W. p.— f) 



One adult female from Chile (Algaroba) (//. p. —t) 



Four adult females from Galafagos Islands {H. p. gala- 

 pagensis) 



Fifteen adult females from Pacific coast of Mexico 

 ( //. p. frazari) 



One adult female from Pacific coast, Oaxaca (San 

 Mateo, Tehuantepec) (//. p. —f) 



33.5 

 31 



42.2 



39.2 



40.8 

 41.7 



42 

 36.5 



42.5 



40.3 



40 



