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Family Portunidae - swimming crabs
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Order
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Class
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Malacostraca
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No. of Genera in Ref.
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No. of Species in Ref.
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332
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Environment
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Fresh : No |
Brackish : No |
Marine : Yes
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Aquarium
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First Fossil Record
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Ref.. De Grave, S., N. Dean Pentcheff, S.T. Ahyong, T.-Y. Chan, K.A. Crandall, P.C. Dworschak, D.L. Felder, R.M. Feldmann, C.H.J.M. Fransen, L.Y.D. Goulding, R. Lemaitre, M.E.Y. Low, J.W. Martin, P.K.L. Ng, C.E. Schweitzer and S.H. … Tan 2009 | |
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Remark
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Carapace hexagonal, transversely ovate to transversely hexagonal, sometimes almost circular; dorsal surface generally relatively flat, often ridged or granulose; front broad, margin usually multidentate; 5 to 9 teeth on each anterolateral margin; posterolateral margins usually distinctly converging. Last pair of legs with distal 2 segments wider and more flattened than these segments of previous legs, in most species the dactylus is oval and paddle-shaped, adapted for swimming purposes, none of the dactyli with conspicuous spines. Male abdominal segments 3 to 5 completely fused, immovable (Ref. 104052).
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Etymology
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Division
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Reproductive guild
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Typical activity level
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Main Ref.
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Coordinator
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