Lindsley & Grell, 1972, p. 22
location: 2-48.5.
origin: Spontaneous.
discoverer: Morgan, 10j.
references: Bridges and Morgan, 1919, Carnegie Inst. Wash. Publ. No. 278: 144 (fig.).
phenotype: Black pigment on body and tarsi and along wing veins, darkening with age. Heterozygote shows somewhat darker trident, but is never confused with homozygote. Puparium usually somewhat lighter than wild type and newly emerged flies not clearly distinguishable from wild type (Waddington, 1941, Proc. Zool. Soc. London, Ser. A lll: 173-80). Tyrosinase formed in adult (Horowitz). RK1 in aged flies.
cytology: Salivary chromosomes apparently normal. Placed in region between 34E5 and 35Dl, on basis of its inclusion in Df(2L)64j = Df(2L)34E5-Fl;35C3-Dl (E. H. Grell).
color figure: P. A. Otto (original)
photograph: P. A. Otto (original)