44 PROCEEDINGS OF THE ACADEMY OP 



both mandibles white, legs light brown (in dried skin). Total length about 

 8 to 8 inches, wing 4, tail 3f , tarsus f , bill from gape 1^ inches. 



Hab. River Camma, Western Africa. Discovered by Mr. P. B. Duchaillu. 



This large species is another of the red tailed birds like my T. calurus, and 

 T. gularis, Horsfield, but differs entirely from those or any other that I have 

 ever seen or found described. The feathers of the head are wide, much as in 

 T. barbatus, and are lengthened, somewhat crest-like. The cinereous or plum- 

 beous color of tbe breast varies in shade in different specimens, and assumes 

 the form somewhat of a wide transverse band on the breast and upper part of 

 the abdomen. 



Several specimens are in the collection from the Camma. This is one of 

 the largest and handsomest known species of this genus. 



79. Tkichophorus calurus, Cassin. 



Trichophorus calurus, Cassin, Proc. Acad. Phila., viii. p. 158,(1856.) 

 Several specimens from the Camma do not differ from others formerly re- 

 ceived from the Muni, though presenting some variations in size and the 

 thickness of the bill. Female like the male in color, but with the feathers of 

 the head shorter and more compact, rather smaller than the male, and with 

 the bill weaker. 



80. Trichophorus simples, Hartlaub. 



"Trichophorus simplex, Temm." Hartl. Cab. Jour. hi. p. 356. 



Specimens from the Camma labelled as males are larger than as given by 

 Dr. Hartl tub as above, and the throat is pure white. Total length about 8J 

 inches, wing 4^, tail 4 inches. 



Though now first received from Mr. Duchaillu this species has been in the 

 Acad. coll. for about twenty years, having been received in Dr. Mac Dowall's 

 collection from St. Paul's river. I have regarded it as Ixos inornatus, Fraser, 

 erroneously as it now appears from the statements of authors, but rather dif- 

 ficult to determine from the description of the latter. This bird does assuredly 

 strongly approximate to typical Ixos both in form and color. 



Genus Xenocichla, Hartlaub, Orn. W. Afr. p. 86. 



Type X. syndactyla (Swainson). Bill strong, straight, rather wide at base, 

 compressed in its terminal half, type of upper mandible rather abruptly curved 

 or hooked, gonys ascending, rictal bristles strong. Wing moderate, fifth and 

 sixth quills longest, tail moderate or rather long, legs and feet moderate or 

 rather slender, but larger than in Trichophorus, scales on thetarsi hardly ob- 

 servable. Outer toe united to the middle toe nearly or quite to the last 

 joint. 



The main distinction of this genus from the preceding is in the bill, which, 

 instead of being wide and curved, is straight and compressed, and with the 

 gonys strongly ascending to the tip, and the union of the outer and middle 

 toe is also a strong character. This group is much more rapacious and shrike- 

 like in its characters than the preceding. Belonging to this group I have seen 

 X. syndactyla (Swainson), X. canicapellus (Hartlaub), X. notatus (Cassin), and 

 X. tricolor (Cassin). 



81. Xenocichla syndactyla, (Swainson). 



Dasycephala syndactyla, Swains. B. of W. Afr. i. p. 261, (1837.) 

 Trichophorus syndactylus, (Swains.) Hartlaub. 



This large and handsome species is in the collection from the Ogobai. It is? 

 the most shrike-like and rapacious species of this group that I have seen, and 

 both geuerically and specifically is strongly characterized. 



Large, bill straight, compressed. Tail and upper coverts bright rufous, up- 

 per parts dark olive, outer edges of quills with a tinge of rufous, under parts 

 greenish yellow, palest on the throat, the green more distinct on the breast 

 and sides. Total length about 9 inches, wing 4, tail 4 inches. Outer 



[Jan . 



