Modified individuals obtained from the Fukaura area. Various degrees of modifications were observed, but spot elongation (both inward and outward elongation) and spot reduction (or disappearance) were key features. (A-E) Individuals of the inward-type modifications. (F-J) Individuals of the reduction-type modifications. (K-O) Individuals of the outward-type modifications. (P-R) Individuals of asymmetrical modifications. (S) Modification-type profiles of Z. maha caught in the Fukaura area in 2002, 2003, and 2004. The outward type increased from 2002 to 2004 especially in male, but the reduction type seems to be almost constant in male.
Otaki et al. BMC Evolutionary Biology 2010 10:252 doi:10.1186/1471-2148-10-252