208 Recently published Ornithological Works. 



land between the Nearctic and Neotropical Regions. The 

 result of Dr. Merrill's observations shows that in the valley 

 of the Rio Grande, as in Arizona and New Mexico, there is 

 a stronger infusion of Mexican forms than has been hitherto 

 supposed. Dr. Merrill and Mr. G. B. Sennett, who, as we 

 have just noticed, has also w^orked successfully in the same 

 field, have thus been able to add the names of a number 

 of species to the fauna of the United States. Of these 

 additions full synonymy and references, as well as descrip- 

 tious, are given. They are as follows : — Thryomanes be- 

 wicki, var. leucogaster, Vireosylvia flavoviridis , Molothrus 

 (eneus, Sturnella magna, var. mexicana, Myiarchus erythro- 

 cercus, var. cooperi, Nyctidromus albicollis, Amazilia fusci- 

 c.audata, A. yucatanensis, Buteo albicaudatus, jEchmoptila 

 albifrons, and Parra gymnostoma. 



As regards the Thryomanes, it is open to question if the 

 term leucogaster can properly be associated with this species. 

 Troglodytes leucogaster, Gould, the origin of the term, was 

 considered by Prof. Baird (Rev. Am. B. p. 127) to be a va- 

 riety of T. bewicki, but has, in fact, nothing to do with that 

 species, being identical with Cyphorhinus pusillus, Scl. It 

 has since been placed in a separate genus under the name 

 Uropsila leucogastra (Scl. & Salv. Nomencl. Av. Neotr. p. 7) . 



Amazilia fuscicaudata is our old friend A. riefferi. It seems 

 to us very questionable if the former name, proposed by Fraser, 

 is really applicable to this bird. Fraser is silent respecting 

 the characteristic rufous lores of A. riefferi, in which bird, too, 

 we fail to recognize any white margins to the feathers of the 

 throat, breast, and abdomen. Dr. Merrill seems to have fol- 

 lowed the questionable lead of Reichenbach in resuscitating 

 this name, which had best be left in abeyance till a bird 

 answering better to Fraser's description reaches us. 



The type of Amazilia yucatanensis is still, we believe, in 

 the possession of Dr. Cabot of Boston. A comparison of the 

 Texan specimens with Mexican examples of A. cerviniventris 

 and this type would be satisfactory, as Mr. Gould has always 

 asserted that A, yucatanensis and A. cerviniventris are dis- 

 tinct species. 



