Heavier-shorter-wider females in the millipede <em>Centrobolus inscriptus</em> Attems (Spirobolida: Trigoniulidae)

Abstract

Millipedes have asymptoticrnor determinate growth and adult body sizes are fixed and can be measured withrnminimum error. Intraspecific variance in sexual size dimorphism (mass, length,rnwidth) was studied in Centrobolus inscriptus. There was continuousrndimorphism in mass with males normally distributed and females were skewedrntowards having a larger mass. Length was continuous but the female distributionrnwas skewed towards shorter individuals. Width shows nearly total discontinuityrnand was strongly skewed towards wider females and intermediate males.