Demaorchestia mie sp. nov.

(Fig. 7)

Orchestia platensis .— Stephensen, 1945: 57–59, figs 15–16.— Gurjanova, 1951: 807–808, fig. 562.

Types. Holotype male NHMD-873662. Paratypes, 1 female, NHMD-876532, 21 males and females, NHMD- 876533.

Type locality. Mie prefecture (central Japan, about 35°N 136°E), on the coast .

Ecological type. Beach-hoppers or marsh-hoppers.

Habitat. Sandy beaches.

Size. Unknown.

Etymology. Named for the Mie prefecture in central Japan.

Diagnosis. Based on Stephensen (1945).

Gnathopod 2 dactylus pinched apically. Pereopod 7 basis posterodistal lobe absent. Epimera posterior margins strongly serrate.

Remarks. Demaorchestia mie is a distinctive species separated from other species of Demaorchestia by the pinched dactylus of male gnathopod 2 and the strongly serrate posterior margin of epimeron 3.

Distribution. Japan (Stephensen 1945).