Therochaeta sp.

Salazar-Vallejo, Sergio I., 2013, Revision of Therochaeta Chamberlin, 1919 (Polychaeta: Flabelligeridae), Zoosystema 35 (2), pp. 227-263 : 244-245

publication ID

https://doi.org/ 10.5252/z2013n2a7

DOI

https://doi.org/10.5281/zenodo.7191350

persistent identifier

https://treatment.plazi.org/id/03985007-F24C-FFF0-0295-FA27FE224D6C

treatment provided by

Felipe

scientific name

Therochaeta sp.
status

 

Therochaeta sp. from Great Barrier Reef

MATERIAL EXAMINED. — One juvenile ( USNM 1132083 ), poorly preserved, Great Barrier Reef , Orpheus Island (18°37’00”S, 146°30’00”E), Stat. JDT & OPH 2, 1- 2 m, 12.II.1989, Thomas & Clark coll. GoogleMaps

DISTRIBUTION. — Only known from the type locality.

DESCRIPTION

Body complete,slightly damaged; 3mm long, 0.7 mm wide, cephalic cage 1.3 mm long, 23 chaetigers. Sand grains over anterior end, dorsally and ventrally. Chaetiger 1 with very long papillae. Three rows of alternating papillae per segment, of two different sizes.Pseudocompound neurohooks in chaetigers 3-7, two per bundle, longest in chaetiger 3. Simple falcate hooks from chaetiger 8, three per bundle. Posterior end with an achaetous segment; pygidium with anus terminodorsal with two long dorsal papillae.

REMARKS

This juvenile specimen resembles T. caudata n. comb. They differ because this juvenile has falcate neurohooks from chaetiger 8 and three per bundle in following chaetigers, whereas in T. caudata n. comb. neurohooks start in chaetiger 9 and there are only two neurohooks per bundle.

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