120 i\ii'. 0. Salvia on the Genus Ciiiclus. 



is rnucli darker than the Himalayan race. It is another instance 

 of the peculiarity to be found in almost all Formosan birds. 



9. CiNCLUS ASIATICUS. 



Cinclus asiaticus, Sw., Faun, Bor.-Am. ii. p. 174; Adams, 

 P. Z. S. 1858, p. 489, and 1859, p. 180; Gould, B. As. pi. 

 " C. tenuirostris, Gould," Bp., Consp, i. p. 252. Hydrohata 

 asiatica, Gray, Gen. B. ; Blyth, Cat. Mus. As. Soc. p. 158 ; 

 Horsf. & Moore, Cat. B. Mus. E. I. Co. i. p. 185. Cinclus pal- 

 lasi, Gould, Cent. B. pi. xxiv. ; Gray, Cat. Hodgs. Coll. B. M. 

 p. 78; Vigors, P. Z. S. 1830-31, p. 54. C. maculatus, Hodgs. 

 Zool. Misc. 1844, pp. 83, 173 (av. juv.). 

 G. brunueus, unicolor : C. pallasi similis sed valde dilutior, 



rostro tenuiore. 

 Juv. cinereus, albo variegatus, gula alba. 



Hab. Lower and middle streams of the Western Himalayas, 

 and also Ladakh, ranging northwards as far as Chinese Tartary 

 [Adams] . 



Mus. Brit. 



h'. Species of the Nearctic Region with Mexico and Central 

 America. 



10. Cinclus mexicanus. 



Cinclus mexicanus, Sw., Phil. Mag. 1827, i. p. 368; Sclater, 

 Cat. Am. B. p. 10; Baird, Rev. Am. B. i. p. 60; Salvin, Ibis,, 

 1866, p. 190. Hydrohata mexicana, Baird, B. N. Am. p. 229. 

 C. pallasi, Bp., Zool. Journ. ii. p. 52, and Am. Orn. ii. p. 173, 

 pi. 16. fig. 1. C. americaims, Sw., F. B.-Am. ii. p. 173. C. uni- 

 color, Bp., Comp. List, p. 19, and Consp. i. p. 252. t. mortoni, 

 Towns. Narr. p. 337. C. townsendi, Aud. in Towns. Narr. p. 340. 



C. obscure cinereus, capite undique fuscescente : long, tota 

 7-2, alse 3*7, caudse 2-0. 



Hab. Rocky Mountains of North America, Mexico, and 

 Guatemala (?) 



Mu^. Salvin & Godman. 



Mexican specimens of this Dipper, as Prof. Baird has pointed 

 out, are somewhat darker than northern examples, and the colour 

 of the head and neck more distinctly defined and darker. These 

 differences are very slight and seem hardly sufficient to warrant 



