256 AVES. 



Ocean, where they are constantly and rapidly flying about in 

 pursuit of Insects. (1) 



Barita, Cuv.(2) Cassicans, BufF. 



A large conical beak, straight and round at base, which scallops out 

 a circular notch in the feathers on the forehead; round back, com- 

 pressed sides, hooked point, and sloped laterally. The nostrils, 

 small and linear, are not surrounded by a membranous space. 



They are large birds of New Holland and its neighbouring 

 islands, which have been arbitrarily placed in several genera. 

 They are said to be very noisy and clamorous. They pursue 

 small Birds.(3) 



ChalybjEus, Cuv. 



A beak similar to that of the Baritas, but somewhat smaller at base, 

 and the nostrils pierced in a large membranous space. The species 

 known are from New Guinea, and are remarkable for their beautiful 

 tints, which resemble browned steel. 



C. paradisceus, Cuv.; Paradiseea viridis, Gm.; Enl. 634. The 

 feathers on the head and neck like curled velvet, which, added 

 to the lustre of its hues, has caused it to be placed among the 

 Birds of Paradise. 



C. cornutus, Cuv.; Barita Keraiidrenii, Less, and Garn. Voy. 

 de Duperr. pi. 13. Two pointed tufts of feathers on the occi- 

 put; its trachea forms three circles, before it reaches the lungs. 



Psaris, Cuv. (4) -Becardes, BufF. 



The beak conical, very stout and round at base, but does not scallop 

 out the feathers on the forehead; the point slightly compressed and 

 hooked. From South America. The best known species is the 



(1) Here come Lan. leucorhynchos, Gm. Enl. 9, 1, the same as Lan. dominicanus, 

 Sonnerat, Voy. I, pi. xxv. Lan. viridis, Enl. 32, 1 Ocyp. cinereus, Val. Ocyp- 

 terus fuscafus. Ocyp. riijiventer. Consult the monography of M. Valenciennes 

 en this genus published in the Mem. du Mus. torn. VII, p. 20, pi. 7, 8, 9. 



(2) Barita, the Greek name of an unknown Bird. M. Viellothas given to my 

 Saritas, the name of Cracticus. 



(3) We place here the Cassican, Buff. (Corccja.? varia, Gm.; Gracula varia, 

 Sh.) Enl. 628. Lejluteur, {Corucias libicen,'La.th. second suppl.; Gracula tibicen, 

 Sh.) Voy. de Freycln. ph xx. Corvus gracuUnus, J. White; Coracias strepera. 

 Lath. Ind. Ornith.; Gracula strepera, Shaw; Rdveilleur del' Isle de Norfolk, Daud.; 

 Gr.calyh^, Vaill. Ois. de Par. 6"; Vieill. Galer. 109, and one species with a taper- 

 ing tail, Bar. unaphoresis, Temm. 



(4) Psaris, the Greek name of an unknown Bird. Vieill. has changed it into 

 TrryiiA, Galer. 134, 1; Spix into Pachyrliynchus, Av. Brasil, 44. 



