''Benhamisetosus'' is a genus of marine
annelids
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 ecolo ...
in the family
Polynoidae
Polynoidae is a family of marine Polychaete worms known as "scale worms" due to the scale-like elytra on the dorsal surface. Almost 900 species are currently recognised belonging to 9 subfamilies and 167 genera. They are active hunters, but gene ...
(scale worms). The genus contains a single species, ''Benhamisetosus australiensis'', known from the south coast of
Australia and the
Tasman Sea
The Tasman Sea ( Māori: ''Te Tai-o-Rēhua'', ) is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer ...
.
[Averincev, V. G. (1978). The Polychaetous Annelids of the Aphroditiformia of the Shelf and Upper Bathial of Australian and New Zealand Region and of Macquarie Island (on the Base Data of 16th Cruise of R/V Dmitri Mendeleev).]. Transactions of the P.P.Shirov Institute of Oceanology Academy of Sciences of the USSR, Moscow. 113: 51-72.]
Description
In ''Benhamisetosus australiensis'' the number of pairs of
Elytron (Annelida), elytra is unknown since the
type
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specimens are incomplete. The lateral antennae are inserted ventrally (beneath the
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 ...
and median antenna) and the
neuropodia
In invertebrates, the term parapodium ( Gr. ''para'', beyond or beside + ''podia'', feet; plural: parapodia) refers to lateral outgrowths or protrusions from the body. Parapodia are predominantly found in annelids, where they are paired, unjointed ...
are elongate and tapering. The
notochaetae
A chaeta or cheta (from Greek χαίτη “crest, mane, flowing hair"; plural: chaetae) is a chitinous bristle or seta found in annelid worms, (although the term is also frequently used to describe similar structures in other invertebrates such ...
are about as thick as the
neurochaetae. The neurochaetae each have a distinctive half-moon shaped pocket on one side formed by a curved row of fine teeth, and neurochaetae with both unidentate and bidentate tips are present.
[Benham, W.B. (1915). ]art 1
Art is a diverse range of human activity, and resulting product, that involves creative or imaginative talent expressive of technical proficiency, beauty, emotional power, or conceptual ideas.
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Report on the Polychaeta obtained by the F.I.S. 'Endeavour' on the coasts of New South Wales, Victoria, Tasmania and South Australia, Part 1. Biological Results of the Fisheries Expedition F.I.S. Volume 3(4). 171–237. H.C. Dannevig. Sydney.
References
{{Taxonbar, from=Q1889456
Phyllodocida