1865. ] GENERA AND SPECIES OF CYPSELIDE. 613 
t o bear Temminck’s appellation spinicauda, although only one of the 
Specimens so marked in the Leyden Museum is of this species, and 
others so marked belong to Chet. cinereiventris, mihi. 
11. CH&TURA RUTILA. 
Hirundo rutila, Vieill. Nouv. Dict. xiv. p. 528, et Enc. Méth. 
p- 534. 
Acanthylis rutila, Sclater, P. Z. 8. 1855, p. 135. 
Chetura rutiia, Sclat. et Salv. Ibis, 1860, p. 37, pl. 3. f.1 (3), 
2 (2); Sclat. Cat. Am. B. p. 283; et P.Z.S. 1863, p. 101. 
Hirundo robini, Less. Tr. d’Orn. i. p. 270. 
Chetura brunnettorques, Lafr. Rev. Zool. 1844, p- 81; Bp. 
Consp. p. 64. 
Nigricanti-fuliginosa, subtus dilutior ; torque maris undique rubro, 
Semine nullo: long. tota 4:5, ale 5:0, caude 2'0. 
Hab. Guatemala (Salvin). 
Mus. P.L.S. 
Said to have been procured by M. Robin in Trinidad, and by La- 
fresnave described as from New Granada, but more certainly from 
Guatemala, where Mr. Salvin obtained his specimens personally. 
(3. Species Africane. 
12. CH&TURA SABINI. 
Chetura sabini, Gray, Griff. An. K. ii.-p. 70; Hartl. Orn. W. Afr. 
p- 25; Sclater, P. Z.S. 1863, p. 205. 
C. bicolor, Gray, Zool. Mise. p. 7. . 
Acanthylis bicolor, Strickl. P. Z.S. 1844, p. 99. 
Nigra ; uropygio, caude tectricibus superioribus et inferioribus 
et ventre cum crisso albis; tectricum caudalium sup. et inf. 
plumarum rachidibus nigris : long. tota 4:0, ale 5:0, caude 1-5. 
Hab. Sierra Leone (Sabine); Fernando Po (Fraser). 
In this smaller species the tail is wholly black ; and the whole of 
the upper and under tail-coverts are pure white, with black shafts to 
the feathers. 
13. CH2&TURA CASSINI. 
“ Chetura sabinei,” Cassin, Proc. Acad. Sc. Phil. 1859, p. 33. 
C. cassini, Sclater, P. Z.S.1863, p. 205, pl. xiv. f. 2 (May 26th). 
C. hartlaubi, Jard. Edinb. N. Ph. Journ. 1863, p. 147 (July 1st). 
Nigra; uropygit fascia angusta et corpore subtus albis ; pectore 
Suliginoso ; pectoris et gule plumarum rachidibus nigris: long. 
tota 4°8, ale 6°3, caude 1:2. 
Hab. Gaboon (Du Chaillu). 
In this species the upper tail-coverts are black, crossed by a nar- 
row white bar, which extends through and is partially observable on 
the rectrices. The size is much larger than that of Ohetura sabini. 
