Limnoporeia woorake Barnard & Drummond, 1978

Taylor, Joanne, 2009, Phoxocephalidae *, Zootaxa 2260 (1), pp. 800-827 : 821-822

Limnoporeia woorake Barnard & Drummond, 1978

( Figs 15 , 16 )

Limnoporeia woorake Barnard & Drummond, 1978: 501 , figs 255–257. — Lowry & Stoddart, 2003: 236.

Type locality. Western Port , Victoria, Australia .

Material examined. Holotype female "a", NMV J620 ; 1 female, AM P70995, 1 male and 1 female, AM P77847 and 2 females AM P71001 ( QLD1619 ).

Description. Based on female, 2.0 mm, AM P70995 and 2 females, 2.0, 2.5 mm, AM P71001.

Head. Rostrum unconstricted; eyes present. Antenna 1 peduncle article 2 with ventral setae confined apically. Antenna 2 peduncle article 4 facial robust setae in a single group of 2, dorsal setae absent or with 1 short setule; article 5 midfacial robust setae present, as a single set of 1–3; flagellum reduced to 6 or fewer articles. Mandible palp article 2 without outer setae; molar simple, form E (3 or fewer spines usually with common base); right molar with 1 spine, without disjunct spines; right incisor with 3 teeth and notch or midcusp, right lacinia mobilis flabellate, right raker row of 2 teeth. Maxilla 1 inner plate without setae; outer plate without an especially thickened robust seta; maxilla 1 palp uniarticulate. Maxilliped inner plate without large thick apical robust setae; outer plate, inner margin poorly armed, with 6 or fewer setae.

Pereon. Coxae 1–4 with 2 short ventral setae present. Coxa 1 expanded distally. Gnathopods dissimilar. Gnathopod 1 palms weakly chelate, carpus of gnathopod 1 free (not cryptic), of gnathopod 2 cryptic. Pereopods 3–4 carpus lacking posteroproximal robust setae, propodus slender setae absent. Pereopod 5 basis of broad form, broader than long, not tapering distally, without facial ridge. Pereopod 6 basis with 1 facial ridge. Pereopod 7 basis with few or no long ventral setae, with 1 facial ridge.

Pleon. Epimeron 1 anteroventral margin without setae, posteroventral face without setae. Epimeron 2 without facial setae. Epimeron 3 facial setae absent, with 4 short posterior setae, without ventral setae or with very short setules only. Uropod 1, peduncle basofacial setae absent, without major displaced robust setae, with 1 apicolateral spine; inner ramus naked, without subapical accessory robust setae, outer ramus not continuously spinose to apex. Uropods 1–2 rami without apical nails. Uropod 3 outer ramus article with 2 apical setae.

Habitat. Coarse sand and sand patches between reef.

Remarks. The Lizard Island material closely resembles the illustrations of the female holotype ( Barnard & Drummond 1978: 502–505). This species can be distinguished from other phoxocephalids of the GBR by the shape and size of the propodus of gnathopods 1–2 and pereopod 7 basis, few ventral setae on coxae 1–4 and lack of apical nails on uropods 1–2. It can be distinguished from Limnoporeia cooki sp. nov. and other species of the genus by the proportions of the gnathopods.

Distribution. Australia. Queensland: Lizard Island (current study). Victoria: Western Port and Port Phillip Bay ( Barnard & Drummond 1978).

Figures

FIGURE 15. Limnoporeia woorake Barnard & Drummond, 1978, female, 2.0 mm, AM P70995, reef crest off Coconut Beach, Lizard Island, Great Barrier Reef.

FIGURE 16. Limnoporeia woorake Barnard & Drummond, 1978, female, 2.0 mm, AM P70995, reef crest off Coconut Beach, Lizard Island, Great Barrier Reef.