Recently published Ornithological Works. 253 



the auther recognizes a third form of Marsh-Tit in the Scan- 

 dinavian peninsula — Parus colletti — a " subspecies of the 

 borealis group/^ and points out its distinctive characters. 

 What does Mr. Collett say to this notable discovery ? We 

 should be glad to have his opinion on his namesake. 



64. Stejneger on the Hawaian Avifauna. 



[Further Contributions to the Hawaian Avifauna. By Leouhard 

 Stejneger. Proc. U.S. Nat. Mus. 1888, p. 93.] 



Mr. Stejneger's article is based on a new collection lately 

 received from Mr. Valdemer Knudsen, made in the island of 

 Kauai and the adjacent small island of Niihau. It contains 

 representatives of 11 species, of which one [Puffinus knudseni) 

 is described as new. A new generic term, Thyellodromas, is 

 made for the subgenus to which this Shearwater belongs, the 

 term " Thyellus, Glover," usually applied to it, being strictly 

 only a synonym of Puffinus. Two more specimens of the 

 lately described Himantopus knudseni (Stejn. Pr. U.S. Nat. 

 Mus. 1887, p. 81) are in the collection, and serve to confirm 

 the species. A full account is given of Anas wyvilliana, Scl. 

 (Zool. Voy. Chall. vii. p. 98, t. xxii.), of which four specimens 

 were in the collection, and show remarkable individual varia- 

 tions. The species is stated to be most nearly related to 

 Anas aberti, of N.W. Mexico, and not to A. superciliosa. 



65. Stejneger on the European Crested Titmice. 



[Notes on the European Crested Titmice. By L. Stejneger. Proc. 

 U.S. Nat. Mus. 1888, p. 113.] 



Mr. Stejneger^s comparison of three Scandinavian examples 

 of Parus cristatus with a series from Central Europe has 

 brought him to the conclusion that they belong to two dis- 

 tinct forms. " The former are greyer above, the latter more 

 brownish, but the exact shade is very difficult to describe." 

 He proposes therefore to restrict the name Parus a'istatus 

 to the Scandinavian bird, and to call the other Parus mi- 

 tratus, a name applied by Brehm to one of his subspecies. 

 " It would be very interesting to know," he continues, 

 " whether the Crested Titmouse of Scotland belongs to either 



