Ptilohyale plumicornis

Parhyale plumicornis (Heller)

Nicea plumicornis Heller, 1867:5–6, pl. 1: figs. 8, 9.

Allorchestes plumicornis.—Stebbing, 1899:412–413, pl. 33c; 1906:583–584.—Walker, 1901:299, pl. 27: figs. 20, 21.—Chevreux, 1911:241–242, pl. 17: figs. 1–3.—Chevreux and Fage, 1925:291–292, fig. 302.—Ruffo, 1936:30–31; 1941:119.—Soika, 1949:196.

Parhyale plumicornis.—Krapp-Schickel, 1974:326, pls. 3, 4. Not Allorchestes plumicornis.—Iwasa, 1939:289–292, figs. 25, 26, pl. 22.—Nagata, 1965:308 [? = Hyale penicillata (Stimpson)].—?Stephensen, 1944:71–72, fig. 25.

Not Allorchestes ptilocerus Derzhavin, 1937:96–97, 111, pl. 6: fig. 1.—Gurjanova, 1951:823–824, fig. 576 [probably allied to Hyale plumulosa Stimpson].

DIAGNOSIS.—One or more spines on outer ramus of uropod 3 shifted disjunctly from apex onto dorsal margin, inner ramus strong but fused to peduncle. Palp of maxilla 1 uniarticulate. Hand of male gnathopod 1 unexpanded, rectangular, bearing 2 spines in tandem at defining corner of palm, none facial, palm setose; palm and posterior margin of male gnathopod 2 of approximately equal length, distinct, palm lined with short spines. Article 2 of pereopod 5 with broad, rounded but shallow posteroventral lobe. Peduncle of uropod 1 with large apicolateral spine, outer ramus with 2 dorsal spines. Peduncle of antenna 1 poorly setose ventrally; articles 4–5 of peduncle on antenna 2 and proximal articles of flagellum with dense tufts of short setae; coxa 3 with protruding, subsharp posterior tooth. Epimera 1–3 weakly protuberant posteroventrally, strongest on epimeron 2.

DISTRIBUTION.—Mediterranean Sea.