Metopelloides Gurjanova, 1938

Ariyama, Hiroyuki & Moritaki, Takeya, 2023, Two New Amphipods Associated with a Hermit Crab from the Kumano-nada, Central Japan (Crustacea: Amphipoda: Isaeidae, Stenothoidae), Records of the Australian Museum (Rec. Aust. Mus.) 75 (4), pp. 357-370 : 362

Key to species of Metopelloides Gurjanova, 1938

1 Antenna 1, peduncular article 2 short (less than half length of article 1) ..................................................................................................................................... 2 —— Antenna 1, peduncular article 2 long (more than half length of article 1) ................................................................................................................................ 3

2 Gnathopod 1, posterior margin of dactylus setose; palm of gnathopod 2 transverse ........................................................................................... M. tattersalli

—— Gnathopod 1, posterior margin of dactylus bare; palm of gnathopod 2 oblique ....................................................................................... M. lowryi sp. nov.

3 Gnathopod 2, anterior margin of basis setose ..................................................... M. micropalpa

—— Gnathopod 2, anterior margin of basis bare .............................................................................. 4

4 Telson with 2 robust setae ................................................................................... M. stephenseni

—— Telson without robust setae ......................................................................................... M. paguri