Department of Zoology at ANDC/Zoology Museum/Museum specimens/Annelida/Chaetopterus
Common Name: Paddle worm
Worldwide distribtion, mainly found in Europe, and U.S.A.
Habit and habitat
Tubicolous, lives in U-shaped tubes.
small organisms,true filter feeders.
- Body is delicate consisting of highly modified segments.
- Body color is white.
- Length is approximately 15-35 cm.
- Body is divided into an anterior region, middle region and a posterior region.
- Anterior region consists of 15-20 segments parapodia, prostomium, peristomial collar(cirri and mouth). It lacks the tentacles and palps.
- Middle region consists of five segments:
- anterior most, produced into great wings.
- a pair of sucker.
- have fans(fused notopodia).
- Posterior region consists of 11-30 similar segments without setae.It is more longer than anterior and posterior regions. Each segment consists of a pair of parapodia.
- Parapodia are modified accordingly to their function. They are modified into pumping fans, sucking discs and food ball organs.
- Notopodia are greatly reduced in Chaetopterus. But the 10th segment contains a wing like notopodia and collect food with the help of this notopodia.
- It is an animal having great power of regeneration.
- Asexual reproduction by transverse fission.