Family Cirratulidae

Family Cirratulidae (Click to enlarge)
Cirratulidae (collected from Tathong Channel).  Ventral view of entire worm. Family Cirratulidae (Click to enlarge)

@

Cirratulidae (Click to enlarge)

Cirratulidae (collected from Victoria Habour).  Ventral view of entire worm. Family Cirratulidae (Click to enlarge)

@

Cirratulidae (Click to enlarge)
Cirratulidae (collected from Victoria Habour).  Ventral view of anterior region. Family Cirratulidae (Click to enlarge)

@

Setae of Cirratulidae (Click to enlarge)
Setae at anterior region of Cirratulidae. Setae of Cirratulidae (Click to enlarge)

@

Order Spionida
Family Cirratulidae

Features
Body: cyclindrical and slender; series of long, slender branchial filaments and tentacular and dorsal cirri along the body
Prostomium: conical or blunt; no appendage
Peristomium: fused with at least 2 segments
Eye: absent
Antennae: absent
Cirri: absent
Palp: 2
Pharynx: non-eversible
Parapodium: biramous or reduced
Setea: simple
(Fauchald 1977)

Biological Notes
        Cirratulids are deposit feeders.   The food particles are gathered from the sea bottom by a single pair of grooved palps or numerous grooved tentacular filaments arising from the first few setigerous segments.   They are sluggish worms.   Their bodies are buried just below the surface of the sea bottom.   Only the long gills and tentacular filaments which are usually bright red or orange are above the surface (Day 1967).


Genera and Species Reported in Hong Kong

Aphelochaeta filibranchia
Caulleriella
sp.
Chaetozone flagellifera
Chaetozone maotienae
Chaetozone setosa
Cirratulus
sp.
Cirriformia tentaculata

Top