n. Ad. sk. 

 o. Ad. sk. 



p. 5 ad. sk. 

 q, r. Ad. sk. 

 s, t. Ad. sk. 



M. Ad. sk. 

 V. 5 ad. sk. 

 w. Ad. sk. 



:r. Ad. sk. 

 y. Ad. sk. 

 2. Ad. sk. 



a'. Skeletou. 

 b'. Stenium. 

 c'. Skull. 



3. CORTUS, 



Tjiidakli (Strac/iei/). 

 Thibet (Hodt/.wn) . 



Oaon river. 



Fort Simpson, N. A. 



49tli parallel (Dawson). 



West side of Rocky Mts. 



West side of Rocky Mts. 



Vancouver's Island. 



Mexico. 



Mexico. 



Mexico. ' 



England. 



En":laud. 



17 



Secretary of State for 



India [P.]. 

 Secretary of State for 



India [P.]. (Type of 



C. thibetarms.) 

 Dr. Dybowski [C.]. 

 B. R. Ross, Esq. [P.]. 

 N. A. Boundary Commis- 

 sion [P.]. 

 J. K. Lord, Esq. [C.;. 

 .T. K. Lord, Esq. fO.1. 

 J. K. Lord, Esq. [C.;. 

 Purchased. 

 Pvu'chased. 



J. Gould, Esq. (Typeof 

 C. nobilis.) 



J. Ray, Esq. 

 W. Yarrell, Esq. 



2. Corvus umbrinus. 



Corvus nmbriuus, Sumlev. (Efv. k. Vet. Alcad. Fork. StocJch. 1838, 

 p. 199 (e.r mdenb. MS.) ; id. op. cit. 1850, p. 130; Cab. Mus. 

 Hein. Th. i. p. 231 ; Brehm, J. f. O. 1854, Extrah. p. 97 ; Schl. 

 Bijdr. Dierk. Amsterd. fol. p. 8, Taf. 1. fig. 14 ; id. Mus. P.-B. 

 Coraces, p. 19 ; Gray, Hand-l. B. ii. p. 12; Ileugl. Orii. N.O.- 

 Afr. pp. 505, cxxiv ; Finsch S,- Hartl Vog. Ostafr. p. 373 ; Shelley, 

 Ii. Eqiipt, p. 158 ; Dres.^er, B. Eur. parts xxxiv., xxxviii. ; Blan- 

 ford,'F. Pers. p. 262. 



Corvus iufumatus, Wag7i. Miinch. ijel. Anz. 1839 (te.ste Finsch Sr 

 Hartl. t. c). 



Corvus corax, Horsf. S^ Moore, Cat. B. Mus. F.I. Co. n. p. 552 {nee 

 L.) ; F. C. Taylor, Ibis, 1859, p. 49; Adams, Ibis, 1864, p. 22. 



Corvus umbrinus, Pr. Wiirt. Naum. 1857, p. 433. 



Corax umbrinus, Brehm, Reis. Habesch, pp. 216, 319. 

 Adult. Black, with a dull bronzy gloss, or with a purple shade 

 near the base of many of the feathers ; head brown, slightly glossed 



COUVUS RUFICOLLIS. 



Corvus 1-uficollis, Less. Tr. d'Orn, Tp. 329 ; Puchcr. Fev. et Mag. de Zool. 

 1853, p. 548; Gray, Hand-l. B. ii. p. 12 ; Dresser, B. Eur. part xxxviii. ; 

 Bocage, Jorn. Acad. Lisb. 1867, p. 120; id. op. cit. 1875, p. 13. 

 Corvus capensis, Bolle, J. f. 0. 1856, p. 20 (iiec Lichf.). 

 Corvus corone, Keulem. N. T. I), iii. p. 365 {ncc L.). 

 Adult (of large size). Black, glossed with violet steel-colour ; head, neck, and 

 abdomen (partly) umber-brovfn ; primary-coverts and primary quills shining 

 with bronzy green on the outer web; bill tolerably stout, elongated, curved, 

 black in colour ; tarsi elongated, black, as well as the toes, which are of moderate 

 length ; quills scarcely reaching beyond the tip of the tail ; third and fourth 

 quiUs equal and longest. {Bocage, I. c.) 

 Hah. Cape-Verd Islands. 



Ob!<. The history of this species, of which I have not as yet seen an example, 

 is thoroughly detailed bv Professor Barboza du Bocage. According to his careful 

 studies it is closely allied to C. umbrinus, from which, indeed, it appears to me 

 difficult to separate it ; but it is impossible to decide without seeing the species. 



