Two new species and a new record of Scale-worms (Polychaeta) from Southwest Atlantic deep-sea coral mounds
Author
Miranda, VinÃcius Da Rocha
Author
Brasil, Ana Claudia Dos Santos
text
Zootaxa
2014
2014-08-22
3856
2
211
226
journal article
5151
10.11646/zootaxa.3856.2.3
2d7003e5-498f-4fa8-92df-6c407fd18953
1175-5326
4929871
919C3E5E-B97E-40D8-A72A-A74A974147A5
Subfamily:
Polynoinae
Kinberg, 1856
Type
genus:
Harmothoe
Kinberg, 1856
Type
species:
Harmothoe spinosa
Kinberg, 1856
Diagnosis (according to
Barnich & Fiege 2003
):
Body flattened dorsoventrally, short, up to 50 segments, more or less covered by elytra or short tail uncovered (large specimens). Elytra, 15 pairs present on segments 2, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29, 32. Prostomium with distinct cephalic peaks and three antennae; lateral antennae with ceratophores inserted ventrally to the median antennae; two pairs of eyes, anterior pair dorsolaterally on widest part of prostomium or anteroventrally beneath cephalic peaks, posterior pair dorsally near hind margin of prostomium. Parapodia biramous, noto- and neuropodia with elongate acicular lobe; tips of noto- and neuroacicula penetrating epidermis; neuropodia with digitiform supra-acicular process. Notochaetae all similar, stout, with numerous rows of spines and blunt tips; neurochaetae more slender, distal region falcate with numerous rows of spines, tips bi- and unidentate. Nephridial papillae visible from segment 5 or 6 onwards.