Recently published Ornithological Works. 141 



ridleyana, a large-billed form of the widely-spread South- 

 American E. pagana ; and Zenaida maculata, also a well- 

 known South- American species. The 4 sea-birds are like- 

 wise well-known. Besides these^ Tachypetes aquila, a small 

 Albatross, and three species of Waders were observed. 



26. Shufeldt on the Osteology of the Water-birds. 



[Contributions to the Comparative Osteology of Arctic and Sub- Arctic 

 Water-birds. Part VII. By R. W. Shufeldt, M.D., C.M.Z.S. Journ. 

 Anat. & Physiol, xxiv. p. 543.] 



This is the seventh of Dr. Shufeldt's series of memoirs on the 

 Osteology of the North- American Water-birds (cf. Ibis, 1890, 

 p. 460) . It treats of the Longipennes, i. e., the Stercorariidae, 

 Laridse, and Rhynchopidse, which groups are regarded as 

 of ''family^' value. It is illustrated by excellent woodcuts. 

 This memoir was originally written five years ago, at which 

 epoch, as the author informs us in a footnote, no skeletons 

 of the Terns and only one imperfect skull of Rhynchops were 

 available for comparison. He has now, however, the missing 

 types at hand, and is, we are glad to hear, engaged on a 

 complete treatise on the Osteology of North- American Birds. 



27. Shufeldt' s Myology of the Raven. 



[The Myology of the Raven {Corvus corax smuatus). A Guide to the 

 Study of the Muscular System in Birds. By R. W. Shufeldt. 343 pp. 

 8vo. London : 1890, Macniillan & Co.] 



Although the literature relating to the muscular anatomy 

 of birds is very extensive, the present work is, as its author 

 truly states, the only complete account of the muscles of a 

 particular type. The Pigeon or the Fowl might perhaps have 

 been a better selection, since in these birds there are several 

 muscles present which are wanting in the Passeres ; and they 

 are quite as readily obtainable. Nevertheless a careful and 

 clearly illustrated account of any type of bird-life will prove 

 very useful to students of this branch of anatomy ; and it 

 appears to us that the work has been well done, and may be 

 safely followed as a reliable statement of facts. In Dr. 

 Gadow's chapter on " Aves,^' which forms a portion* of 



