New Species of Genus Pontocrates Boeck, 1871 (Amphipoda: Oedicerotidae) from the Red Sea Soft Bottom Substrates, Egypt

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Pontocrates genus has been assigned to the family Oedicerotidae since 1871. The five species recognized within this family share a similar biogeographical distribution in cold and temperate seawater of Europe and the northern Mediterranean Sea. However, this genus has never been recorded from tropical or subtropical waters elsewhere. The present collected materials from the northern Red Sea (Egyptian coast) indicated an expansion of the distribution area to cover warmer waters. The present species is distinguished from the other congeners by having long dactyl of pereopod six in both male and female, which is the longest among the other species of the genus and subequal to propodus length. A detailed description and fully illustrated material of this species, along with an identification key of worldwide species of Pontocrates, are provided.

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