Family Pilumnidae - hairy crabs

  Order
:
  Class
:
Malacostraca
  No. of Genera in Ref
:
  No. of Species in Ref
:
391
  Environment
:
Fresh : No | Brackish : No | Marine : Yes
  Aquarium
:
  First Fossil Record
:
     
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
  Remark
:
Carapace hexagonal, transversely rectangular or transversely ovate; dorsal surface convex, smooth to granulated; frontal margin entire to multilobate; usually 1 to 4 teeth or lobes on each anterolateral margin. Longitudinal ridges defining efferent respiratory current usually well developed along entire endostome, ridges visible on anterior part of endostome when mouthparts pushed aside. Legs normal. Male abdominal segments 3 to 5 freely movable. Male first gonopod slender, S-shaped, distal part simple; male second gonopod very short, sigmoid (Ref. 343).
  Etymology
:
  Division
:
  Reproductive guild
:
  Typical activity level
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  Main Ref
:
  Coordinator
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Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]


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