Amazilia edward niveoventer -- Snowy-bellied Hummingbird. Alternate name on piece: Erythronota niveiventris. 2 birds fairly well defined, the other and the plant background merely sketched in outline; [Curtis] 9-4752. Artist's name(s): Gould, John; Richter, Henry Constantine. This would appear to be John Gould's conceptual sketch, on which Richter has begun detailed drawing of the birds. Cf. Gould item 168, the next stage in the process.