- Saccocirridae
Taxobox
name = Saccocirridae
regnum =Animal ia
phylum =Annelida
classis =Polychaeta
subclassis =Palpata
ordo =Canalipalpata
familia = SaccocirridaeThe Saccocirridae are small interstitialpolychaete s common in coarse sand, reflective, surf beaches, usually within the zone of retention. The Saccociridae are members of theclade Protodrilida , which is in turn part of the cladeCanalipalpata . Saccocirridae have a world wide distribution and it is likely that many more species remain to be described. These polychates are usually between 2 and 10 mm in length and 500 μm wide. They have reduced parapodia and are considered a true interstitial species, incapable of burrowing through finersediment s.accocirridae Morphology
Based on "Saccocirrus sonomacus" from the Pacific Coast of the Americas
Prostomium:
The prostomium supports a pair of groved palps that have, primarily, a sensory purpose. A pair of eyes are also present.
Peristomium:
Probably reduced to a circumoral ring.
Typical body segment:
Pgyidium:
Usually bi-lobed. Contains a duo-gland adhesive system.
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