Trypanosyllis

Aguado, M. Teresa, Murray, Anna & Hutchings, Pat, 2015, Syllidae (Annelida: Phyllodocida) from Lizard Island, Great Barrier Reef, Australia, Zootaxa 4019 (1), pp. 35-60 : 50

Trypanosyllis sp. 2

( Fig. 8 )

Material examined. AM W.41641, Queensland, Lizard Island, MacGillivray Reef, 14°38'53"S, 145°29'12"E, coarse coral rubble, 14 m, 31 Aug 2010, CReefs.

Remarks. Specimen with several thin red transverse lines per segment; papillae and tufts of cilia on dorsum and on parapodia ( Figs 8 A–C, F). This specimen is similar to Trypanosyllis zebra (Grube, 1860) from Australia, described by San Martín & Hutchings (2006), with dorsal papillae, though these authors did not mention dorsal tufts of cilia. Dorsal chaetae are similar in both species ( Fig. 8 E); however, most ventral chaetae in Trypanosyllis sp. are weakly bidentate ( Fig. 8 G), or completely unidentate ( Fig. 8 H), while in T. zebra all chaetae are bidentate. In addition, T. zebra is widely distributed and probably represents a complex of sibling species.

Habitat. Coral rubble at 14 m depth.

Distribution. Australia (Queensland).

Figures

FIGURE 8. SEM. Trypanosyllis sp. 2. AM W. 47226. A. Mid-body chaetigers, dorsal view; B. Dorsal cirrus, mid-body chaetiger; C. Detail of dorsal surface with papillae and tufts of cilia, mid-body chaetigers; D. Detail of tuft of cilia; E. Most dorsal chaetae, anterior chaetiger; F. Mid-body parapodium, aciculae protruding; G. Most ventral chaeta, mid-body chaetiger; H. Most ventral chaeta, posterior chaetiger.