Nereis

Glasby, Christopher J., 2015, Nereididae (Annelida: Phyllodocida) of Lizard Island, Great Barrier Reef, Australia, Zootaxa 4019 (1), pp. 207-239 : 220-221

Nereis sp. cf. N. cirriseta Hutchings & Turvey, 1982

( Fig. 2 F–H)

Nereis cf. cirriseta Hutchings & Turvey, 1982: 119 –121, fig.10a–d.

Material examined. NTM: W22506 (1), Off Casuarina Beach, Lizard Island, 14°40.82' S 145°26.67' E, coll. P. Brock & N. Bruce, 15 Apr 2008; W22522 (1), Big Vicky Reef, NW of Palfrey Island, Lizard Island, 14°'S 145°'E, coll. K. Mills, 12 Apr 2008; W22523 (1), Day Reef, Outer Great Barrier Reef, 14°28.59'S 145°32.64'E, coll. M. Ekins, 10 Apr 2008; W22540 (1), SW of Palfrey Island, Lizard Island, 14°41.65'S 145°26.49'E, coll. C. Glasby & C. Watson, 8 Apr 2008; W22795 (1), Coconut Beach, Lizard Island, 14°40.88'S 145°28.35'E, coll. C. Watson, 7 Feb 2009.

Diagnosis. Nereis species largely unpigmented ( Fig. 2 F, G); few paragnaths in Area VII–VIII arranged in one line ( Fig. 2 H); dorsal notopodial ligule slightly smaller than ventral notopodial ligule throughout; notopodial homogomph falcigers with slightly hooked blade with several small teeth basally.

Remarks. These specimens belong to a group of Nereis having few paragnaths in Area VII–VIII arranged in one line. Although they resemble closely N. cirriseta in regards to the paragnath formulae and form of the homogomph falciger, they differ from this species in having the dorsal notopodial ligule slightly smaller than the ventral notopodial ligule throughout (see Remarks under N. cf. coutieri on variability in this feature). Probably a new species. No specimens were collected in August, 2013.

Habitat. Lagoon, fore-reef; in sand, coral rubble and Halimeda .

Type locality. Point Peron and Rottnest Island, Western Australia.

Figures

FIGURE 2. A. Composetia marmorata NTM W 22530, preserved, antero-ventral view, pharynx everted; B. Leonnates crosnieri NTM W 23992, preserved, dorsal view; C. L. nipponicus NTM W 23962, preserved, dorsal view; D. Micronereis bansei NTM W 22659, alive, dorsal view; E. Neanthes pachychaeta NTM W 22800, preserved, antero-dorsal view; F. Nereis cf. cirriseta NTM W 22523, alive, antero-dorsal view; G. N. cf. cirriseta NTM W 22523, preserved, antero-dorsal view, pharynx everted; H. N. cf. cirriseta NTM W 22523, preserved, antero-ventral view, pharynx everted. Approximate body widths: A: 2.6 mm; B, C: 5.0 mm; D: 0.4 mm; E: 4.0 mm; F – H: 0.9 mm.