Riukiupeltis jamashinai Verhoeff, 1939

Nguyen, Anh D. & Korsos, Zoltan, 2011, A revision of the millipede genus Riukiupeltis Verhoeff, 1939 (Diplopoda, Polydesmida, Paradoxosomatidae), with comments on the status of related species, ZooKeys 156, pp. 25-40 : 26-27

Riukiupeltis jamashinai Verhoeff, 1939 Figs 126A7A8AMap 1

Riukiupeltis jamashinai Verhoeff, 1939: Zoologischer Anzeiger, 127 (5/6): 125, figs 8-9.

Riukiupeltis jamashinai :- Attems 1940: Das Tierreich 70: 547, fig. 693.

Riukiupeltis jamashinai :- Takakuwa 1954: [Diplopoda of Japan], 52, figs 51-52.

Riukiupeltis jamashinai :- Jeekel 1968: On the classification and geographical distribution of the family Paradoxosomatidae (Diplopoda, Polydesmida ), Nederlandse Entomologische Vereiniging: 76.

Riukiupeltis jamashinai :- Nakamura and Korsós 2010: Acta Arachnologica 59(2): 82.

Material studied.

Holotype male, in fragments - only 11 segments in 5 pieces - with segments around gonopods missing, Reg.-Nr. ZSMA20052252, and two slides with gonopods, Reg.-Nr. ZSMA20035204, and legpairs 1-7, Reg.-Nr. ZSMA20035205 (all BSCZ).

New records: 2 males, 2 females, Japan, Ryukyu Archipelago, Miyako-jima Island, Rinko-abu (cave), 21 August 1979; 8 males, 2 females, Japan, Ryukyu Archipelago, Miyako-jima Island, Fukumine-no-kara (cave), 25 August 1979; 1 male, 1 female, 1 juv., 1 fragment, Japan, Ryukyu Archipelago, Miyako-jima Island, Nishibe zuzaga (cave), 26 August 1979, all leg. M. Shimojana (in the collection of M. Shimojana, Okinawa).

Distribution.

Japan, Ryukyu Archipelago, Miyako-jima island.

Remarks.

Although after the description of Riukiupeltis jamashinai in 1939, Jeekel (1968) and Hoffman (1973) commented that gonopod tibiotarsus is missing in this species, Verhoeff’s line drawing clearly shows it as depicted from the slide preparation (Fig. 1). Re-examining the type specimen and the slide of the gonopod, as well as studying newly identified specimens found in Shimojana’s collection, we are able to confirm that a gonopod tibiotarsus (=solenophore, sph in Fig. 2) is present, although it is small and closely attached to solenomere (slin Fig. 2).