22 BIRDS OF BRITISH GUIAICA. 



11. Mitu mitu. 

 Razor-billed Curassow. 



Mlfif m/'fii (Linn.), ^'^vst. Xat. i. p. 270, 1766 ("Brasilia") ; Braboiirne 



& Chubb, B. S. Amer. p. 9, no. 84, 1912. 

 Z^rax en/thyorhi/nchiis (Swains.), Cab. in Sehomb. Ileis. Guian. iii. 



p. 747, 1848. 

 Mitua tuherosa (Spix), Salvin, Ibis, 1886, p. 174. 

 Mitua mitu Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 485, 1893. 



Adult. General colour black glossed with blue ; a well- 

 developed crest ; sides of face, throat, and neck all round velvety 

 black ; tail tipped with white ; vent and under tail-coverts 

 cliestnut. 



Total length 800 mm.,culmen (including the swollen knobs) 58, 

 wing 400, tail 300, tarsus lOG, middle toe and claw 81. 



This species is not represented in the McC'onnell collection, 

 and the description is taken from a specimen in the British 

 Museum. 



The male and female are said to be similar. 



Breedin(i-season. Unknown in British Guiana. 



INest. Um-ecorded in British Guiana. 



Efjys. Undescribed from British Guiana. 



JRaiif/e in British Guiana. The only record we haA^e of the 

 occurrence of this bird in the Colony is that by Schomburgk 

 (' Heisen Guiana,' iii. p. 747), who states that its habits and mode 

 of life are the same as those of Cra.v alector= G. nigra, p. 17. 



E.vtraUmiial Ranr/e. Brazil, Peru, Bolivia. 



Habits. Unrecorded in British Guiana. 



12. Mitu tomentosa. 

 Lesser Iiazor-billed Curassow. 



3I/fH tomentosa (Spix), Av. Bras. ii. p. 49, pi. Ixiii., 1825 (" in sylvis 

 paludosis fl. Kigri prope pagum Barcellonam ") ; Brabomne A: 

 Chubb, B. 8. Amer. i. p. 9, no! 85, 1912. 



TJrax tomentosa Cab. in Sehomb. Beis. Guian. iii. p. 746, 1848. 



Mitua tomentosa Ogilvie-Grant, Cat. B. Bnt. Mus. xxii. p. 486, 1893. 



Adult. General colour above and below dull black glossed with 

 blue on the head, fore-neck, hind-neck, lesser upper wing-coverts, 

 mantle, and upper back, imparting a waved a])pearance on the 

 latter ; vent, under tail-coverts, and outer portion of the thighs 

 rich cht?stnut ; tail-feathers tipped with chestnut but much paler 

 than the vent and under tail-coverts. 



