Family Penaeidae - penaeid shrimps

  Order
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  Class
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Malacostraca
  No. of Genera in Ref
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  No. of Species in Ref
:
221
  Environment
:
Fresh : No | Brackish : Yes | Marine : Yes
  Aquarium
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  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
:
Also Ref. 8. To about 35 cm. Marine and estuarine, benthic (Ref. 94508). Most species are benthic and mainly found on soft bottoms of sand and/or mud, but a few species (e.g. Funchalia and Pelagopenaeus) are pelagic. Their size ranges from a few to 35 cm body length. The sexes are easily distinguished by the presence of a very large copulatory organ (petasma) on the first pair of pleopods (abdominal appendages) of males, while the females have the posterior thoracic sternites modified into a large sperm receptacle process (thelycum) which holds the spermatophores or sperm sacs (usually whitish or yellowish in colour) after mating. The shape of the petasma and thelycum is often specific and very useful for species identification. The eggs are small and numerous, and are released directly into the water and not retained on the female abdomen. The larvae are planktonic and have the nauplius stage (Ref. 104052).
  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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Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]


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