Paratya boninensis, a new species of freshwater shrimp (Crustacea: Decapoda: Atyidae) from Ogasawara, Japan

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Description

A new atyid shrimp of the genus Paratya is described from the Ogasawara Islands, Japan. Morphologically, It is closest to P. caledoniensis, from New Caledonia, but can be distinguished by the stouter carpus of the first pereiopod and the form of the telson. The new species is also similar to P. compressa from southern Japan, from which it can be separated by fewer spinules on the dactylus of the fifth pereiopod and the larger egg size carried by ovigerous females.

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