Odontosyllis Claparède, 1863

Verdes, Aida, Pleijel, Fredrik & Aguado, Teresa, 2011, A new species of Odontosyllis Claparède, 1863 (Annelida, Syllidae) with re-descriptions of O. liniata Hartmann-Schröder, 1962 and O. gymnocephala Hartmann-Schröder, 1965, Zootaxa 3095, pp. 27-38: 29

publication ID

10.5281/zenodo.201246

persistent identifier

http://treatment.plazi.org/id/D70A879C-B240-FF81-BF94-5E1AFEC961F4

treatment provided by

Plazi

scientific name

Odontosyllis Claparède, 1863
status

 

Genus Odontosyllis Claparède, 1863 

Odontosyllis Claparède, 1863: 47 

? Eurymedusa Kinberg, 1865: 249 

Parautolytus Ehlers, 1900: 213 

Alluaudella Gravier, 1905: 372 

? Atelesyllis Pruvot, 1930: 39 

Pharyngeovalvata Day, 1951: 26 

Odontoautolytus Hartmann-Schröder, 1979: 112  ? Synpalposyllis Hartmann-Schröder, 1983: 132 Umbellisyllis Sars, 1869: 254 

Type species. Odontosyllis fulgurans ( Audouin & Milne-Edwards, 1833) 

Diagnosis (modified from San Martín & Hutchings 2006). Adult size variable, 5–10 mm long, with numerous segments, dorsally convex and flattened ventrally. Prostomium with four eyes and, occasionally, a pair of anterior eyespots. Three antennae. Palps broad, separated for almost all their length, basally fused. First segment usually reduced dorsally; two pairs of tentacular cirri. Occipital flap present, usually well developed, covering first segment dorsally and posterior part of prostomium. Nuchal organs as two ciliated grooves between prostomium and first segment, sometimes extending to lateral areas of prostomium. Dorsal cirri elongated, smooth, distally tapered, but sometimes short or indistinctly articulated. Parapodia usually with pre- and postchaetal lobes. Ventral cirri digitiform to pillow-shaped. Compound chaetae heterogomph, usually with distally spinose shafts. Dorsal and sometimes ventral simple chaetae present on some parapodia. Pharynx short, distinctly shorter than proventricle, provided with few teeth directed backwards and two lateral plates; pharynx when not everted situated posterior to first chaetiger. Proventricle usually long, wide and massive. Pygidium with two anal cirri.Reproduction by epigamy; epigamic specimens sometimes strongly modified and bioluminescent ( San Martín & Hutchings, 2006).

Remarks. Unlike San Martín & Hutchings (2006), we follow Rouse & Pleijel (2001) and Pleijel (2001) for interpretation of Odontosyllis  anterior appendages. These authors suggested that the two first pairs of cirri appendages in Syllidae  may be named in accordance with other taxa in Phyllodocida  . The interpretation of these appendages becomes crucial for homology statements with other families and thereby for our understanding of the position of the group. San Martín & Hutchings (2006) synonymised several genera with Odontosyllis  that previously were poorly known with regard to the structure of the pharynx. They also suggested that Eurymedusa Kinberg, 1865  , Atelesyllis Pruvot, 1930  , and Synpalposyllis Hartmann-Schröder, 1983, may be synonymous with Odontosyllis  , although they could not obtain relevant information from the types since they either had been lost, or were in too poor condition. Alluaudella Gravier, 1905  was considered synonymous with Odontosyllis  by Aguado & San Martín (2008).

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Phyllodocida

Family

Syllidae

Loc

Odontosyllis Claparède, 1863

Verdes, Aida, Pleijel, Fredrik & Aguado, Teresa 2011

2011
Loc

Odontoautolytus Hartmann-Schröder, 1979 : 112

Hartmann-Schroder 1983: 132Hartmann-Schroder 1979: 112Sars 1869: 254

1983
Loc

Alluaudella

Gravier 1905: 372

1905
Loc

Eurymedusa

Kinberg 1865: 249

Loc

Parautolytus

Ehlers 1900: 213

Loc

Atelesyllis

Pruvot 1930: 39

Loc

Pharyngeovalvata

Day 1951: 26