''Bylgides'' is a genus of marine

annelid The annelids (Annelida , from Latin ', "little ring"), also known as the segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecol ...

s in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m.

Description

Body short, 39 segments, 16 pairs of elytra. Anterior margin of

prostomium The prostomium (From Ancient Greek, meaning "before the mouth"; plural: prostomia; sometimes also called the "acron") is the cephalized first body segment in an annelid worm's body at the anterior end. It is in front of (but does not include) th ...

with a pair of acute anterior peaks. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Palps, antennae, dorsal and ventral cirri with papillae. Notochaetae about as thick as neurochaetae. Unidentate and bidentate neurochaetae present. Species of ''Bylgides'' are short-bodied scale worms, with 34 to 39 segments and 14 or 15 pairs of elytra; the elytra have a marginal fringe of short papillae. The

is rounded and bilobed anteriorly, with a pair of cephalic peaks. The antennae are covered with slender papillae and are located ventral to the prostomium; the pair of lateral antennae are inserted ventral (directly beneath) the median antenna. The neuropodium is elongate, tapering. The notochaetae are distinctly thicker than the neurochaetae. All or most neurochaetae have long tapering capillary tips, bidentate neurochaetae are absent.Pettibone MH (1993) Revision of some species referred to Antinoe, Antinoella, Bylgides, and Harmothoe (Polychaeta: Polynoidae: Harmothoinae). Smithsonian Contributions to Zoology 545: 1–41. https://doi.org/10.5479/si.00810282.545

Species

A following species of ''Bylgides'' are known as of September 2020: *''

Bylgides acutisetis ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' Loshamn, 1981 *''

Bylgides annenkovae ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 seg ...

'' Pettibone, 1993 *''

Bylgides belfastensis ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' Pettibone, 1993 *''

Bylgides elegans ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' (Théel, 1879) *''

Bylgides fuscus ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' (Hartman & Fauchald, 1971) *''

Bylgides groenlandicus ''Bygides groenlandicus'' is a marine scale worm that lives in cold waters. Description It has 39 segments and is 70 millimeters (about 2.76 inches) in length. It possesses very long, filamentous chaetae. It scales are brown on its dorsal, medi ...

'' (Malmgren, 1867) *''

Bylgides macrolepidus ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' (Moore, 1905) *''

Bylgides promamme ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' (Malmgren, 1867) *''

Bylgides sarsi ''Bylgides'' is a genus of marine annelids in the family Polynoidae (scale worms). The genus contains 9 species, all found in the Northern Hemisphere and from shallow inshore waters to depths of about 5000 m. Description Body short, 39 se ...

'' (Kinberg in Malmgren, 1866)

References

{{Taxonbar, from=Q3919389 Phyllodocida Polychaete genera