Foxiphalus golfensis Barnard & Barnard 1982

Foxiphalus golfensis

Paraphoxus obtusidens.—J.L. Barnard, 1960:249–259, pl. 33–37 [in part, especially pl. 33: fig. G, pl. 37 (= AHF 677); not other parts and Alderman, 1936].

Paraphoxus spinosus.—Barnard, 1979a: 133 [not Holmes, 1905].

DESCRIPTION OF HOLOTYPE (female “n”).—Head about 20 percent of total body length, greatest width about 60 percent of length, rostrum unconstricted, broad, elongate, exceeding middle of article 2 on antenna 1. Eyes medium to large, clear of pigment (aged in alcohol), ommatidia ordinary. Article 1 of peduncle on antenna 1 about 1.6 times as long as wide, about 2.3 times as wide as article 2, ventral margin with about 8 setules, weakly produced dorsal apex with 2 setules-setae, article 2 about 0.6 times as long as article 1, with 2 tightly constrained ventral rows of 5 and 3 setae, primary flagellum with 12 articles, about 0.8 times as long as peduncle, bearing 1 short aesthetasc each on articles 3–11, accessory flagellum with 10 articles. Antenna 2 poorly ensiform; article 3 with 1 dorsodistal setule; spine formula of article 4 = 1–3–3–5, dorsal margin with notch bearing 3 setae and 1 spine, ventral margin with 5 groups of 1–5 long to short setae, 1 ventrodistal long spine, article 5 about 0.75 times as long as article 4, facial spine formula = 4, dorsal margin bearing 2 sets of small setae, ventral margin with 3 sets of 1–3 long to short setae, 2 ventrodistal long spines, 1 set subdistal and facial; flagellum about 1.25 times as long as articles 4–5 of peduncle combined, with 14 articles.

Epistome slightly produced, triangular anteriorly. Mandibles with medium palpar hump, right incisor with 3 teeth, third near middle of edge, left incisor with 3 hump-teeth in 2 branches, right lacinia mobilis bifid, distal branch shorter than proximal, narrow, proximal branch simple, pointed, left lacinia mobilis with 3 teeth plus 3 accessory teeth, middle teeth shortened; right rakers 7 plus 1 rudimentary, left rakers 9 plus 1 rudimentary; molars composed of elongate plaques, right side small, right molar with 5 primarily long to medium spines, plus 1 spine strongly disjunct, left molar with 6 primarily long to medium spines plus 1 spine strongly disjunct, each molar with plume; palp article 1 short, article 2 with 1 long inner apical seta and 2 other shorter inner setae, article 3 about as long as article 2, oblique apex with 11–10 spine-setae, basofacial formula = 0–2. Inner plate of maxilla 1 ordinary, bearing 1 apicofacial pluseta, 1 similar apicomedial seta, 2 apicolateral much shorter setae, palp article 2 with 1 apical spine, 1 apicolateral and 8 mediomarginal spine-setae. Plates of maxilla 2 extending subequally, outer not broader than inner, outer with 5 apicolateral setae, inner with 2 medial setae. Inner plate of maxilliped with 1 large thick apical spine, 2–3 apicofacial setae, 3 medial setae, outer plate with 10 medial and apical spines, 4 apicolateral setae, palp article 1 without apicolateral seta, article 2 with 2 groups of 2 apicolateral setae, medial margin of article 2 moderately setose, article 3 with 7 facial setae, 3 lateral setae, nail of article 4 almost fused, with 3 accessory setules.

Coxa 1 strongly expanded apically, anterior margin weakly concave, main ventral setae of coxae 1–4 = 7–8–9–7, posteriormost seta of coxae 1–3 shortened, anterior and posterior margins of coxa 4 strongly divergent, posterior margin convex, posterodorsal corner rounded, posterodorsal margin ordinary, concave, width-length ratio of coxa 4 = 1:1. Gnathopods generally ordinary, width ratios on articles 5–6 of gnathopods 1–2 = 28:34 and 28:38, length ratios = 65:73 and 56:70, palmar humps ordinary, palms strongly oblique, article 5 of gnathopod 1 elongate, ovate, posterior margin rounded, article 5 of gnathopod 2 ovate, posterior margin rounded, almost lobate.

Pereopods 3–4 similar, facial setae formula on article 4 = 5 and 4, almost parallel to apex, on article 5 = 5 and ?, main spine of article 5 extending to M. 80 on article 6, article 5 with 1 proximoposterior spine, spine formula of article 6 = 3 + 5 (only pereopod 3 known) plus small middistal seta, some spines especially long, acclivity on inner margin of dactyls of pereopods 3–4 obsolescent, emergent setule almost fully immersed, midfacial pluseta ordinary. Coxae 5–7 posteroventral setal formula = 7–15–8; articles 4–5 of pereopods 3–4 narrow, facial spine rows sparse, facial ridge formula of article 2 on pereopods 5–7 = 0–1–1; width ratios of articles 2, 4, 5, 6 of pereopod 5 = 43:32:32:18, of pereopod 6 = 68:36:22:10, of peropod 7 = 83:23:20:9, length ratios of pereopod 5 = 75:32:41:45, of pereopod 6 = 92:58:50:80, of pereopod 7 = 100:26:30:34, article 2 of pereopod 7 almost reaching apex of article 4, posterior margin with 12 small serrations, ventral margin with 11 notches each bearing long seta, medial apex of article 6 weakly combed, bearing 3 weak digital processes.

Posteroventral corner of epimeron 1 rounded, posterior margin weakly convex, serrate, setose (5), anteroventral margin with 4 short to medium setae, posteroventral face with 2 long setae set slightly oblique. Posteroventral corner of epimeron 2 rounded, posterior margin weakly convex, serrate, setose (6), facial setae = 9, none set vertically, posteroventral corner of epimeron 3 rounded, weakly protuberant, posterior margin weakly concave, serrate, setose (9), ventral margin with 5 setae mainly posterior.

Urosomite 1 with lateral setule at base of uropod 1 and 2 midfacial setae, articulation line complete, urosomite 3 unprotuberant dorsally. Rami of uropods 1–2 with articulate but tightly fixed apical nails, except inner ramus of uropod 1 with flexible nail, outer ramus of uropod 1 with 3 dorsal spines, inner with 1, outer ramus of uropod 2 with 3 dorsal spines, inner with no dorsomedial spines, peduncle of uropod 1 with 4 basofacial setae and 3 apicolateral spines, medially with 5 marginal setae and spines, apicalmost an ordinary spine, none displaced. Peduncle or uropod 2 with 8 dorsal spines, medially with 1 small apical spine; apicolateral corners of peduncles on uropods 1–2 without comb. Peduncle of uropod 3 with 5 ventral spines, dorsally with 1 lateral spine, 1 medial spine and setule, rami submasculine, inner extending to M. 95 on article 1 of outer ramus, apex with 2 setae, medial and lateral margins with 3 and 1 setae, article 2 of outer ramus short, 0.13, bearing 2 long setae, lateral margin of article 1 with 4 acclivities, short spine formula = 1–1–1–1–0, long spine formula = 1–1–1–1–1, setal formula = 0–0–0–0–2. Telson especially long, length-width ratio = 5:4, almost fully cleft, each apex of medium width, rounded, lateral acclivity shallow, narrow, bearing ordinary lateral setule, thin spine next medial slightly longer than setule, very long, with dorsolateral spine at M. 70 and slightly shorter lateral spine at M. 55, mid-lateral setules diverse, larger of medium size.