Miyamotoia daitoensis Morino, 2020

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 : 31

Miyamotoia daitoensis Morino, 2020

( Fig. 16 )

Miyamotoia daitoensis Morino, 2020: 8 , figs 6, 7.

Types. Holotype (NSMT-Cr 26792) ovigerous female 11.0 mm; near the mouth of Hoshino-Do cave, Minami-Daitojima Island, Okinawa . Paratypes, 1 male 7.6 mm (NSMT-Cr 26793), 1 female 9.2 mm (NSMT-Cr 26794), 1 male 7.6 mm, (NSMT-Cr 26795); data as holotype .

Type locality. Near the mouth of Hoshino-Do cave, Minami-Daitojima Island, Okinawa, Japan .

Ecological type. Forest-hopper.

Habitat. 40 m altitude, living among the magnolia Machilus thunbergii , the cinnamon Cinnamomum yabunikkei and Schefflera heptaphylla .

Size. Male, 7.6 – 9.2 mm, female, 11 mm.

Diagnosis (male). Based on Morino (2020).

Labrum without robust setae along anterior margin. Gnathopod 2 dactylus short, recurved distally. Pereopod 4 thickened proximally with notch midway along posterior margin. Uropod 1 peduncle distolateral robust seta present. Uropod 3 ramus shorter than peduncle.

Remarks. In M. daitoensis the labrum lacks robust setae (present in M. spinolabrum ) and the pleopodal rami are about 0.3 × as long as peduncles (0.5 × as long in M. spinolabrum ).

Distribution. Japan. Okinawa: Minami-Daitojima Island ( Morino 2020).

Figures

FIGURE 16. Miyamotoia daitoensis Morino, 2020, after Morino 2020.