Acicula
Acicula (singular: aciculum) are strong, stout internal chaetae that provide support to parapodia in polychaete annelids.[1]
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Arctonoe_sp._parapodium_with_chaetae_labels.png/660px-Arctonoe_sp._parapodium_with_chaetae_labels.png)
Microscope photograph of a parapodium from a specimen of Arctonoe sp. showing the internal acicula that support the two lobes of the parapodium.
References[]
- ^ Hutchings, P. A.; Fauchald, K. (2000). Polychaetes and Allies: the Southern Synthesis - Class Polychaeata: Definition and General Description. Melbourne: CSIRO Publishing. pp. 1–3.
Categories:
- Annelid anatomy