just over the length of a size 14 gumboot.Kingdom=AnimaliaPhylum=ArthropodaSubphylum=CrustaceaClass=MalacostracaOrder=DecapodaSuborder=DendrobranchiataFamily=PenaeidaeGenus=PenaeusSpecies=P.monodonBinomial name=Penaeus monodonCommon name=Black Tiger prawn/Leader prawn