Chela asymmetry and dimorphism in the red swamp crayfish <b><i>Procambarus clarkii</i></b> (Decapoda: Astacidea: Cambaridae)
Katsuyuki Hamasaki,
Naoko Osabe,
Keisuke Morimoto
et al.
Abstract:The red swamp crayfish Procambarus clarkii exhibits different sexual morphotypes (reproductive type, form I; non-reproductive type, form II) in both sexes after reaching sexual maturity. This crayfish species shows intra-and inter-sexual dimorphisms of chela size: the chelae are largest in the form I males, followed by the form I females and form II males, and are the smallest in the form II females. Chelipeds of this species are asymmetrical, with one chela being larger than the other. However, little is know… Show more
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