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The presumptive subspecies of dilocarcinus pagei crustacea brachyura trichodactylidae re description and reference to its polyphenism


, : The presumptive subspecies of dilocarcinus pagei crustacea brachyura trichodactylidae re description and reference to its polyphenism. Physis Seccion B las Aguas Continentales y sus Organismos 39(97): 21-32

Many conspecific specimens obtained at Esteros Laguna Oca, Formosa Province, Argentina, showed the same morphological differences as those used by Bott (1969) to establish 2 sspp.: D. (Dilocarcinus) pagei pagei and D. (D.) p. cristatus. All the specimens studies are sympatric and synchronic, and they cannot belong to different subspecies. The only possible explanation for this phenomenon is polyphenic variation in a local population of the species.

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Related references

Pinheiro, M.A.A.; Taddei, F.G., 2005: Growth of the freshwater crab, Dilocarcinus pagei Stimpson Crustacea, Brachyura, Trichodactylidae Crescimento do caranguelo de Agua doce, Dilocarcinus pagei Stimpson Crustacea, Brachyura, Trichodactylidae. The biology of freshwater crab Dilocarcinus pagei Stimpson, 1861 has been poorly studied, mainly in relation to growth in the Trichodactylidae species. This study aims to determine size/weight growth curves, longevity and age in the puberty molt o...

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