Exogone (Exogone) lourei Berkeley & Berkeley, 1938

Linero-Arana, Ildefonso & Diaz Diaz, Oscarn, 2011, Syllidae (Annelida, Polychaeta) from the Caribbean coast of Venezuela, ZooKeys 117, pp. 1-28 : 8

Exogone (Exogone) lourei Berkeley & Berkeley, 1938 Figs 2.11-2.14

Exogone lourei Berkeley and Berkeley 1938:44, figs. 6 –12.– Banse 1972:200, fig. 5 A–D.– Banse and Hobson 1974: 58, fig. 14 h–j.– Perkins 1981:1092.- Uebelacker 1984:39-41, fig.34 a–f.– Russell 2007:56-57, fig. 2.- Gobin 2010 (list only).

Exogone (Exogone) lourei San Martín and Bone 2001:612. - San Martín 2005:129-130, fig. 78 A–J.

Material examined.

GCPG198, (3), fine sand, 2 m depth; BMER203; (15); fine sand, 4 m depth; BMC101, (7); BMLV101, (9), inside dead Millepora alcicornis , 1-2 m depth; BMC103 (7), medium sand 1-2 m depth.

Description.

Length to 7.6 mm, width to 0.2 mm. Body with up to 50 chaetigers. Prostomium with two pairs of lentigerous eyes. Median antenna digitiform, lateral antennae short, ovoid. Palps fused dorsally. Tentacular, dorsal and ventral cirri ovoid. Dorsal simple chaeta with bent tip, minutely serrated on outer edge, present from chaetiger 1. Dorsal compound spinigers serrated (Fig. 2.11), with shaft-heads enlarged on chaetiger 2 (Fig. 2.12); ventral compound falcigers on anterior chaetigers bidentate with very small terminal tooth and serrated edges (Fig. 2.13). Ventral simple chaeta bidentate (Fig. 2.14), present on middle and posterior chaetigers. Pharynx extending through 4-5 chaetigers, with 10 marginal papillae and subterminal dorsal tooth. Proventriculus extending from chaetigers 4-5 to 5-8, with 17-24 rows of muscle cells. Pygidium with a pair of anal cirri.

Distribution.

South of British Columbia to Panama, Canary Islands, Australia, Florida, Gulf of Mexico, Belize, Cuba, Venezuela.