dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Wildus waipiro (J. L. Barnard)

Paraphoxus waipiro J. L. Barnard, 1972b:143–145, figs. 79, 80.

DISTRIBUTION.—New Zealand, intertidal.

Paraphoxus Sars

Paraphoxus Sars, 1895:148–149.—Stebbing, 1906:137.—Barnard and Drummond, 1976:524.

Not Pontharpinia Stebbing, Parharpinia Stebbing, Protophoxus K. H. Barnard, Trichophoxus K. H. Barnard, nor Metharpinia Schellenberg.

DIAGNOSIS.—Eyes present. Flagella of antennae 1–2 unreduced in female. Article 2 of antenna 1 especially shortened, ventral setae confined apically. Article 1 of antenna 2 not ensiform, article 3 with 2 setules, facial spines on article 4 in one main row, with rudimentary second row, article 5 short. Right mandibular incisor with 3 teeth; molar not triturative, small, conical, bearing 3 long clumped spines with common base, not bearing fuzz; palpar hump small. Palp of maxilla 1 biarticulate, inner plate with 2 setae. Setation of maxilla 2 ordinary. Inner plate of maxillipeds ordinary; apex of palp article 3 weakly protuberant, dactyl elongate, apical nail distinct, elongate. Gnathopods small, similar, gnathopod 2 weakly enlarged; article 5 of gnathopods 1–2 very short, almost cryptic, with eusirid attachment; palms oblique, hands of gnathopods 1–2 weakly enlarged, ovatorectangular, elongate, poorly setose anteriorly. Article 5 of pereopods 1–2 setose posteroproximally. Article 2 of pereopod 3 of broad form, articles 4–5 of pereopods 3–4 narrow, article 2 of pereopods 3–4 not setose posteriorly; pereopod 5 ordinary, article 2 naked ventrally, article 3 ordinary, dactyl normal. Epimera 1–2 lacking long posterior setae, without midfacial setae above ventral facial ridge; epimeron 3 of rounded classification and lacking long setae. Urosomite I generally naked; urosomite 3 without dorsal hook or special process. Peduncle of uropod 1 normally elongate, without apicoventral spike, without special enlarged apicolateral–medial spine; peduncular apices of uropods 1–2 combed; spine(s) on inner ramus of uropod 1 in one row, no rami continuously spinose to apex, inner ramus of uropod 2 ordinary. Uropod 3 especially elongate, article 2 of outer ramus carrying 2 short to medium apical setae. Telson ordinary, with only one apical spine on each lobe plus setules.

DESCRIPTION.—Rostrum fully developed. Fuzz on article 1 of antenna 1 in male present; calceoli on male primary flagellum of antenna 1 present. Calceoli on article 5 of male antenna 2 present; flagellum in male with calceoli. Prebuccal parts ordinary, extended forward, massive, poorly separated from each other, upper lip dominant. Right lacinia mobilis bifid, flabellate; mandibular palp thin, article 1 slightly elongate, article 2 without outer setae, apex of article 3 almost transverse. Lower lip bearing cones. Outer plate of maxilla 1 with 11 spines, one spine especially thickened. Inner plates of maxilliped poorly armed, thick. Coxae 2–4 without special anterodorsal humps. All posterior spines on article 6 of pereopods 1–2 thin and stiff, midapical spine or seta absent; dactyls of pereopods 1–2 lacking inner tooth, bearing raphe, apical nail distinct but immersed. Article 2 of pereopod 5 without facial setae. Peduncle of uropod 1 with dorsolateral spines confined apically, medial spines widely spread; peduncle of uropod 2 with medial spines and setae sparse but widely spread. Peduncle of uropod 3 lacking extra subapical setae or spines. Telson with ordinary pair of midlateral or dorsal setules on each side.

TYPE-SPECIES.—Phoxus oculatus Sars, 1879 (monotypy).

COMPOSITION.—Possibly Parharpinia simplex Gurjanova, 1938.

RELATIONSHIP.—Paraphoxus differs from Brolgus and Ganba in the presence of two apical setae on the outer ramus of uropod 3. It differs from Kuritus, Elpeddo and Wildus in the absence of the special apicomedial spine on the peduncle of uropod 1.

See Barnard and Drummond (1976) for an exposition on the nomenclatural history of Paraphoxus, the revival of its synonyms, and notes on the placement of species to be rejected from Paraphoxus. Also see “Allocation of Species in Paraphoxus” below.