Lindsley & Grell, 1972, p. 201
origin: Spontaneous.
discoverer: Bridges, 18j2.
references: Morgan, Bridges, and Sturtevant, 1925, Bibliog. Genet. 2: 235.
phenotype: More bristles reduced and remaining ones more irregular than in rd. More extreme in male. Abdominal banding abnormal in female. Both sexes fertile. RK1.
color figure: P. A. Otto (original)
b & w figure: Edith M. Wallace, unpublished