Abstract
The relative growth of two species of the genus Ocypode inhabiting different ecological niches was studied before and after sexual maturity. The growth coefficient of both sexes of O. cordimana, which inhabits supra-littoral zones, is higher than that of O. platytarsis found in wave-wash zones.s Some characteristics such as eyestalk length, major chela width and obdomen width do not show any difference in the growth pattern of either species of Ocypode at the onset of sexual maturity. Other characteristics such as minor and major chela length in male O. platytarsis; carapace length, minor chela length and width in female O. platytarsis; major chela length and third walking leg length in male O. cordimana showed a difference in the growth pattern after the onset of sexual maturity. Major chela length of males of both species is clearly a sexually dimorphic feature since it showed an increase in the growth coefficient after sexual maturity. Merus length in male O. platytarsis and minor chela length in femal...
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