Paranamixis fishelsoni, Kaim-Malka, 2024

Kaim-Malka, R. A., 2024, A new species of the family Leucothoidae (Crustacea, Amphipoda) from the Mediterranean Sea, Paranamixis fishelsoni sp. nov., Zootaxa 5463 (3), pp. 441-450 : 442

Paranamixis fishelsoni sp. nov.

Figures 1–3

Type material. Male anamorph, HOLOTYPE: One male anamorph. Length: 3.13 mm. Station AM 02 (Acre), 24 June 1976, between Laurencia algae on Rocky substrate. The specimen is deposited in the Museo Civico di Storia Naturale di Verona MSNVRCr480. slides 7830.

Female and male leucomorph, one individual: length 1.39 mm; three individuals: length between 1 and 2 mm. Station AM 02 (Acre), 24 June 1976 between Laurencia algae on Rocky substrate. The material is deposited in the Museo Civico di Storia Naturale di Verona MSNVRCr480, and slides 7831 .

Ethymology. This species is dedicated to the Professor Lev Fishelson (Tel Aviv University) who kindly provided the author with the specimens, and the informations about the sampling area.

Diagnosis. (anamorph males) Gnathopod 1 absent; Coxa 2 oval; Gnathopod 2 propodus regularly ovoid, palm with one distal triangular protrusion; Posterior margin of epimeral plate 3 straight.

Figures

FIGURE 1. A: Paranamixis fishelsoni sp. nov., holotype male anamorph, terminal stage, Length: 3.13 mm; B: Maxilliped; C: Gnathopod 2; D: Gnathopod 2: enlargement of the dactylus; E: Pereopod 3; F: Pereopod 4. Scale: B, C, D, E, F: 0.1 mm; A: 0.5 mm.

FIGURE 2. Paranamixis fishelsoni sp. nov., holotype male anamorph, terminal stage.A: Head with Antenna 1 and Antenna 2; B: Pereopod 5, note the great size of the coxa; C: Pereopod 6, note the aspect of the left basis with the notch; D: Pereopod 6, the right basis; E: Pereopod 7, the left basis; F: Pereopod 7, note the aspect of the right basis; G: Epimeral plate 1, 2, 3; H: Uropod 1; J: Uropod 2. Scale: A, B, C, D, E, F, G, H, J: 0.1 mm.

FIGURE 3. Paranamixis fishelsoni sp.nov., Leucomorph stage. A: Head with Antenna 1 and Antenna 2; B: Antenna 1 and Antenna 2; C: Gnathopod 1; D: Gnathopod 2; E: Pereopod 3; F: Pereopod 5; G: Pereopod 6. H: Pereopod 7; J: Epimeral plate 1; K: Epimeral plate 2; L: Epimeral plate 3; M: Uropod 1; N: Telson. Scale: A, B, C, D, E, F, G, H, J, K, L, M, N: 0.1 mm.