Quasimelita

Labay, Vjacheslav S., 2014, Review of amphipods of the Melita group (Amphipoda: Melitidae) from the coastal waters of Sakhalin Island (Far East of Russia). II. Genera Quasimelita Jarrett & Bousfield, 1996 and Melitoides Gurjanova, 1934, Zootaxa 3869 (3), pp. 237-280 : 269

Key to species of genus Quasimelita

1. Eyes absent, antenna 1 as long as body length............................ Quasimelita abyssorum ( Stephensen, 1944)

- Eyes present, antenna 1 shorter than body length............................................................ 2

2. Pleon segments with dorsal carination.................................................................... 3

- Pleon segments without dorsal carination.................................................................. 5

3. Pleon segments 1–3 with one large central tooth and two small lateral teeth each............. Quasimelita tolyza sp. nov.

- Only pleon segments 2–3 with one central tooh each......................................................... 4

4. Anterior head lobe large, rounded, coxa 1 not serrated, with rounded anterior corner, basis of pereopod 7 linear.................................................................................. Quasimelita formosa ( Murdoch, 1885)

- Anterior head lobe truncated ( Fig. 16 c), coxa 1 serrated, with pointed anterior corner, basis of pereopod 7 expanded, with rounded posterior wing.................................................. Quasimelita serraticoxae sp. nov. (part)

5. Anterior head lobe large, rounded, coxa 1 not serrated, with rounded anterior corner................................ 6

- Anterior head lobe truncated ( Fig. 16 c), coxa 1 serrated, with pointed anterior corner...................................................................................................... Quasimelita serraticoxae sp. nov. (part)

6. Outer ramous of uropod 3 is short, slightly longer than peduncle length......... Quasimelita quadrispinosa ( Vosseler, 1889)

- Outer ramous of uropod 3 is long, 2.9–3.3 times as long as peduncle....................... Quasimelita jarettii sp. nov.

Figures

FIGURE 16. Quasimelita serraticoxae sp. nov., holotype, male: a—lateral view, b—carination of body, c—cephalon, d—antenna 1, e—antenna 2, f—typical body sensible seta: a, d, e— 2 mm; c— 0.2 mm.