Acicula

{{short description|Anatomical feature of annelids}} {{about|a bristle-worm anatomical feature|the snail of Aciculidae family|Acicula (gastropod)}}

'''Acicula''' ({{singular}}: '''aciculum''') are strong, stout internal chaetae that provide support to parapodia in polychaete annelids.<ref>{{cite book |last1=Hutchings |first1=P. A. |last2=Fauchald |first2=K. |title=Polychaetes and Allies: the Southern Synthesis - Class Polychaeata: Definition and General Description |date=2000 |publisher=CSIRO Publishing |location=Melbourne |pages=1–3}}</ref>

[[File:Arctonoe sp. parapodium with chaetae labels.png|upright=3|thumb|Microscope photograph of a parapodium from a specimen of ''Arctonoe'' sp. showing the internal acicula that support the two lobes of the parapodium.]]{{clear}}

==References== {{reflist}}

Category:Annelid anatomy