| 词条 | Oweniidae |
| 释义 |
| name = Oweniidae | image = Owenia fusiformis.jpg | image_caption = Owenia fusiformis | regnum = Animalia | phylum = Annelida | classis = Polychaeta | ordo = Canalipalpata | subordo = Sabellida | familia = Oweniidae | familia_authority = Rioja, 1917 | subdivision_ranks = Genera | subdivision = }}Oweniidae is a family of marine polychaete worms in the suborder Sabellida. The worms live in tubes made of sand and are selective filter feeders,[1] detritivores and grazers.[2] CharacteristicsMembers of this family live in tubes made of sand and shell fragments. The head of the worm does not bear a proboscis but has the mouth at the tip rimmed by some very short tentacles. The body segments lack parapodium|parapodia and are smooth elongated cylinders. There are a large number of hooked chaetae or bristles on a small pad on the ventral side of each segment. These chaetae have two parallel teeth resembling claws which is a feature that distinguishes members of this family from other polychaetes. The posterior tip bears different appendages in different genera. Family members are unique in having a bell-shaped larval stage known as a mitraria larva. At one time the family was classified as the Ammocharidae.[1] Genera
References1. ^1 NIWA Guide to Polychaeta {{Commonscat}}{{Taxonbar|from=Q3612622}}2. ^1 World Register of Marine Species 1 : Sabellida |
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