474 Recently published Ornithological Works. 



elated with them^ M. Bogdanow describes two new species — 

 Pterocles severzoivi ( = P. alchata auctt. ex Asia, which he 

 distinguishes from P. alchata from Western Europe), and 

 P. ellioti, ex Abyssinia, allied to P. exustus. 



56. Bolau on the Birds of Askold. 



[Verzeiclmiss der \oii Fr. Dorries auf Askold an der ostsibirischen 

 Kiiste gesammelten Vogel. Von Dr. Heinrich Bolau. J. f. 0. 1880, 

 p. 113.] 



This is a list of the birds contained in two collections made 

 by Herr Fr, Dorries on the island of Askold, which lies off 

 the Pacific coast of Siberia, about .25 miles from the port of 

 Wladiwostock (43°N. lat.) . Eighty-six species are represented. 

 Exact dates are given of the occurrence of the specimens, 

 and many useful notes. Larvivora superciliaris is new to the 

 North-Asiatic avifauna. Ten species of Emberiza are 

 included, besides Euspiza aureola ; so that the land is rich 

 in Buntings ! 



57. Braun on the Development of Parrots. 



*"" [Die Entwickelung des Wellenpapagei's (Melopsittacus undulatus). 

 Ai'beiteu aus d. zool.-zootom. Institut, Wiirzburg, v. pp. 161-204. J 



Aus der Entwickelungsgeschichte der Papageien. Yerli. d. phys.-med. 

 Ges. zu Wiirzburg, n. F., Band xiv. pp. 121, 251, xv. pp. 120, 173.] 



Up to the present time, embryologists studying the de- 

 velopment of birds have nearly always taken the common 

 Fowl as the subject of their studies, supplemented in some 

 cases by the Goose, Duck, Pigeon, Starling, and Sparrow. 

 Dr. INi. Braun, however, has now been enabled to study the 

 developmental history of a Parrot by breeding in numbers the 

 now Avell-known Budgerygah or Australian Grass-Parrakeet 

 {Melopsittacus undulatus) . As might have been expected from 

 the general uniformity in the structure of living birds, the 

 development of the Parrakeet does not display any very great 

 differences from that of the Fowl. Perhaps the most interesting 

 feature of Dr. Braun^s researches, from an ornithological point 

 of view, is his discovery, in the nearly hatched bird, of di- 

 stinct tooth-like papillae on the margin of both upper and 



