NATURAL SCIENCES OF PHILADELPHIA. 35 



12. Platystira leucopygialis, Fraser. 

 Platystira leucopygialis, Fraser. 

 Fraser, Zool. Tj^- Birds, pi. 34. 



A beauliful and apparently abundant Flycatcher of Equatorial Africa. 

 Specimens of both sexes are precisely as figured above. 



13. Mdscipeta flaviventuis, Verreaux. 



Muscipeta fiaviventris, Verr. Cab. Jour. 1855, p. 103. 



14. Muscipeta melanogastra, Swainson. 

 Muscipeta melanogastra, Sw. B. of W. Af. ii. p. 55. 



15. BuTALis EPULATUS, Cassin. 



Butalis cpulatus, Cassin, Proc. Acad. Philada., vii. p. 326, (1855.) 



Several specimens of this little species are in the present collection, all of 



vrhich are but very slightly different from our specimens as above described. 



Some specimens have, however, the under mandible entirely yellowish white, and 



the color of the tarsi and toes is much lighter, being in fact pale yellowish. The 



present specimens are more recent than the former. 



16. Bdtalis comitatus, nobis. 



Intimately allied to, and resembling the preceding, but much larger, with the 

 under mandible entirely dark colored and all the plumage darker. 



Bill wide at base with very strong bristles ; wing rather long, fourth quill 

 longest ; tail moderate, with the feathers rather pointed. 



Total length about 5 inches, wing 2i, tail 2^ inches. 



Eftire upper parts dark cinereous, lighteron the rump, a narrow line of black 

 aroiiad the neck behind. Quills and tail brownish black. Throat and middle 

 of the abdomen white, breast and flanks dark cinereous. Inferior wing coverts 

 ashy white, inner edges of quills white. Bill dark. 



Hab. Muni river, Western Africa. Discovered by Mr. P. B. DuChailiu. 



Much resembling H. ejmlalus, but larger and easily distinguished. One speci- 

 men in the present collection is all that I have seen. 



17. MusciCAPA McCallii, (Cassin.) 



Pycnosphrys McCallii, Cassin, Proc. Acad. Philada., vii. p. 326, (1855.) 

 Presenting no characters diflering from those given in the original description. 

 A second specimen of this curious little bird is in the present collection. It does 

 not belong to the genus Pycnosphrys^ a specimen of the type of which is now in 

 the Museum of the Academy. The present bird has a strong and rather wide 

 bill, numerous long bristles and a rather long tail. In form only (not in color) 

 it resembles the genus Tyrannula. My leisure at present will not warrant an ex- 

 tended examination. 



18. Drymoica Bairdii, Cassin. 



Drymoica Bairdii, Cassin, Proc. Acad. Philada., vii. p. 327, (1855.) 

 Not different in any respect from the specimens originally described by me, 

 and strongly characterized by the uniform and numerous transverse stripes of 

 the under parts from the base of the under mandible to the inferior tail coverts 

 including the iihice. 



19. Sykcopta tincta, Cassin. 



Syncopta tincta, Cassin, Proc. Acad. Philada., vii. p. 315, (1855.) 



20. Campephaga nigra, Yieillot. 

 Campephaga nigra, Vieill. 



Le Vaill. Ois. d'Af. pi. 165. 



Very similar to specimens in the museum from Southern Africa. 



21. CoRvus ccRviROSTRis, Gould. 



Corvus curvirostris, Gould, Proc. Zool. Soc, London, 1836, p. 18. 

 Jard. & Selby, 111. Orn. N. S. pi. 33. 

 A very handsome and strongly marked species. 

 1857.] 



