Recently published Ornithological Works. 277 



of these groups has been vastly increased by the numerous 

 specimens received from their collectors in every part of 

 Mexico. 



One new genus of Tyrannidse is founded — Myiopagis for 

 Elainea placens (vol, ii. p. 26) ; and two species of the same 

 family are described as new^ Empidonax canescens from 

 Central Mexico (vol. ii. p. 79)^ and Myiarchus inquietus 

 (ii. p. 88) from the State of Guerrero, Mexico. Among the 

 Tityrinse, two new species {Tityra pelzelni from Matto 

 Grosso^ Brazil, and T. huckleyi from Ecuador) are described 

 in footnotes. 



The following species are figured : — 



Tyrannulus semiflavus ; Leptotriccus superciliaris ; Elainea 

 arenarum ; Si7'ystes albogriseus ; Myiarchus flammulatus ; 

 Myiodynastes hemichrysus ; Contopus ochraceus ; Muscivora 

 mexicana; Myiobius capitalis ; Empidonax albigularis; E. 

 atriceps ; Chiromacharis aurantiaca ; Piprites griseiceps ; 

 Carpodectes nitidus ; Pachyrhamphus cinereiventris ; and P. 

 albog7'iseus. 



36. Grieg on a neiv Hybrid Grouse. 



. \_Lagopus iirogallo-albus. Ein neuer Moorsclineeliulin-Bastard. Von 

 James A. Grieg. Bergens Mus. Aarsberetning, 1889.] 



The author describes and figures a new case of hybridism 

 in the Grouse, between Lagopus albus ^ and Tetrao 

 urog alius $ . The specimen was obtained from a dealer 

 in Bergen, who received it from the province of Nord- 

 land, Norway. 



37. Grieg on the Birds of the Husa Islands. 



[En zoologisk exkursion til Husoen. Ved James A. Grieg. Bergens 

 Mus. Aarsberetning, 1889.] 



In the summer of 1889 Mr. Grieg, accompanied by a 

 collector, visited the Husa Islands, which lie on the extreme 

 west coast of Norway, outside the Sogne Fiord, and obtained 

 examples of about 40 species of birds, of which a list, with 

 notes, is given. 



