Two New Records of Caridean Shrimps (Crustacea: Decapoda) from the Korean Continental Slope of the East Sea

摘要

Two caridean shrimps, Eualus biunguis (Rathbun, 1902) and Argis toyamaensis (Yokoya, 1933), collected from the Korean continental slope of the East Sea at depths of 850-870 m are reported as new to the Korean caridean fauna with brief descriptions andillustrations. A hippolytid shrimp, E. biunguis, is distinguished from the congeners by the minute chelalike appearance of dactylr of the last three pereopods and the large pyriform eye. A crangonid shrimp, A. toyamaensis, differs from the Korean species of the genus in having the posterior acute spines of submedian carinae on the sixth abdominal somite.