Corvus corax richardsoni Miller and Griscom

Corvus corax richardsoni Miller and Griscom, 1925: 5 (San Rafael del Norte (4100 ft.), Nicaragua).

Now Corvus corax sinuatus Wagler, 1829 . See Hellmayr, 1934: 2; Monroe, 1968: 282–283;

Dickinson, 2003: 514; dos Anjos, 2009: 638; and Martínez and Will, 2010: 75–76.

HOLOTYPE: AMNH 144788, female, collected at San Rafael del Norte, 4100 ft, 13.12N, 86.06W (Times Atlas), Nicaragua, on 2 April 1917, by W. DeW. Miller, L. Griscom, and W.B. Richardson.

COMMENTS: The AMNH number of the holotype was given in the original description; a single specimen was collected.

Hellmayr (1934: 2) synonymized richardsoni with sinuatus, and subsequent authors have agreed.