Demaorchestia hatakejima, Lowry & Myers, 2022

Lowry, J. K. & Myers, A. A., 2022, Platorchestiinae subfam. nov. (Amphipoda, Senticaudata, Talitridae) with the description of three new genera and four new species, Zootaxa 5100 (1), pp. 1-53 : 11-12

Demaorchestia hatakejima sp. nov.

( Fig. 5 )

Orchestia platensis .— Morino, 1975: 172–175, figs 1–3.

Types. Holotype male, 17.5 mm, NSMT-Cr 29013. Paratypes 3 males and 3 females NSMT-Cr 29014.

Type locality. Hatakejima Island (Tanabe Bay in Wakayama Prefecture), Japan .

Ecological type. Beach-hopper.

Habitat. According to Morino (1975) “This small and more or less compressed species occurs exclusively under stranded matter, living between the substratum and stranded matters, though the substratum conditions vary from fine sandy beach … to sandy and pebbly shores.”

Size. Male, 17.5 mm.

Diagnosis. Based on Morino (1975).

Gnathopod 2 dactylus not modified distally, blunt. Pereopod 6 coxa with anteroventral corner rounded, not produced. Epimeron 3 posterior margin smooth to minutely serrate.

Distribution. Japan. Tanabe Bay ( Morino 1975).

Figures

FIGURE 5. Demaorchestia hakatejima sp. nov. after Morino 1975.