Streptodonta San Martin & Hutchings 2006

Genus Streptodonta San Martín & Hutchings, 2006 Type species: Opisthodonta pterochaeta Southern, 1914, designated by San Martín & Hutchings (2006). Diagnosis. Relatively long body, with numerous segments. Palps foliaceous, approximately triangular in shape, basally fused. Prostomium ovate to...

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Bibliographic Details
Main Authors: Paresque, Karla, Fukuda, Marcelo Veronesi, Martín, Guillermo San, Nogueira, João Miguel De Matos
Format: Other/Unknown Material
Language:unknown
Published: 2015
Subjects:
Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Syllidae
Streptodonta
Arctic
Núñez
Ramos
San Martín
North Atlantic
Online Access:https://zenodo.org/record/5618789
https://doi.org/10.5281/zenodo.5618789
Description
Summary:Genus Streptodonta San Martín & Hutchings, 2006 Type species: Opisthodonta pterochaeta Southern, 1914, designated by San Martín & Hutchings (2006). Diagnosis. Relatively long body, with numerous segments. Palps foliaceous, approximately triangular in shape, basally fused. Prostomium ovate to pentagonal with three antennae, two pairs of eyes and one pair of anterior eyespots. Peristomium with two pairs of cirri. Long and slender antennae and cirri throughout, smooth, distally tapering; ventral cirri usually triangular. Compound chaetae as falcigers and, frequently, also spiniger-like chaetae. Aciculae, at least of anteriormost chaetigers, distinctly expanded distally, with rounded tip. Pharynx long, with tooth away from anterior margin; trepan absent; proventricle massive but shorter than pharynx. Reproduction by epigamy (cf. Ramos et al. 2010). Remarks. The genus currently includes two known species, the type-species S. pterochaeta, from the Northeastern Atlantic (San Martín 2003), also reported from Australia (San Martín & Hutchings 2006), and S. exsulis Ramos, San Martín & Sikorski, 2010, from the Sub-Arctic and North Atlantic Ocean (Ramos et al. 2010), recently also found off Canary Islands (Jorge Núñez, personal communication). This is the first occurrence of the genus for the Brazilian coast. Published as part of Paresque, Karla, Fukuda, Marcelo Veronesi, Martín, Guillermo San & Nogueira, João Miguel De Matos, 2015, Amblyosyllis, Eusyllis, Odontosyllis, Perkinsyllis and Streptodonta (Annelida: Syllidae) from Brazil, with descriptions of two new species and new records for the country, pp. 301-334 in Zootaxa 4000 (3) on pages 325-326, DOI:10.11646/zootaxa.4000.3.1, http://zenodo.org/record/254376

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