Leucothoe euryonyx Walker, 1901

White, Kristine N., 2011, A taxonomic review of the Leucothoidae (Crustacea: Amphipoda) 3078, Zootaxa 3078 (1), pp. 1-113 : 51-52

Leucothoe euryonyx Walker, 1901

Leucothoe euryonyx Walker, 1901: 302 , 303, pl. 27, figs 24–26. — Stebbing, 1906: 724. — Krapp-Schickel, 1969: 306. — Krapp-Schickel, 1975: 98, pl. 4. — Ledoyer, 1986: 658–661, fig. 251. — Krapp-Schickel, 1989: 444, fig. 301.

Leucothoe dentitelson Chevreux, 1925: 297–299 , figs 7, 8. — Reid, 1951: 227, 228, fig. 25. — Griffiths, 1975: 140.

Leucothoe quadrimana Ruffo, 1946: 53 , 54. — Ruffo & Krapp-Schickel, 1967: 85–91, figs 1, 2.

Type locality and specimens. Cannes. Holotype, female, 1.75 mm.

Material examined. No material available for examination. Diagnosis based on description by Walker (1901) and Ruffo & Krapp-Schickel (1967).

Diagnosis (female). Gnathopod 1 carpus with distal setae; dactylus short. Gnathopod 2 basis distally expanded; carpus with small subdistal tooth; propodus palm sub-rectangular; dactylus short, thick. Pereopods 5–7 bases narrowly expanded. Epimeron 3 posteroventral corner with simple cusp.

Note. Leucothoe euryonyx of Stebbing, 1906, Krapp-Schickel, 1969, 1975, 1989, and Ledoyer, 1986; Leucothoe dentitelson of Chevreux, 1925, Reid, 1951, and Griffiths, 1975; and Leucothoe quadrimana of Ruffo, 1946, and Ruffo & Krapp-Schickel, 1967 agree closely with Walker’s original description of the species.

Male (sexually dimorphic characters). Gnathopod 2 propodus palm convex with two large tubercles; carpus distally truncate.

Habitat. Among algae, rhizoids of Cystoseira C. Agardh, 1820 , Zostera , Posidonia König , and Lithothamnium Heydrich (1897) ; 1–190 m.

Host. Unknown.

Distribution. Mediterranean Sea: Cannes ( Walker 1901; Stebbing 1906), Capri ( Ruffo & Krapp-Schickel 1967; Krapp-Schickel 1989), Tyrrhenia ( Krapp-Schickel 1969), Naples ( Krapp-Schickel 1975). Atlantic Ocean: Senegal, West Africa (Chevreux 1925; Reid 1951; Griffiths 1975; Krapp-Schickel 1989). Indian Ocean: Madagascar ( Ledoyer 1986).