Species Profile
Pennatula
Sea pen
KingdomAnimalia
PhylumCoelenterata
ClassAnthozoa
OrderUnknown
FamilyUnknown
Introduction
Pennatula inhabits shallow marine waters.
It is sessile and carnivorous.
Plays a role in benthic ecosystems.
Size & Structure
01
Elongated feather-like colony
02
Central stalk with lateral polyps
03
Pale white or yellow
04
Anchored in soft substrate
Pennatula — 3D Model
No 3D model available
General Features
- Coelom
- Acoelomate
- Body plan
- Blind sac body plan
- Germ layer
- Diploblastic
- Metamerism
- Absent
- Body symmetry
- Radial
- Fertilization
- External
- Digestion type
- Incomplete, extracellular and intracellular
- Nervous system
- Nerve net
- Excretory organ
- Absent
- Body temperature
- Poikilothermic, stenohaline
- Circulatory type
- Type-I (absent)
- Development type
- Indirect
- Respiratory type
- Diffusion
- Mode of excretion
- Ammonotelism
- Circulation system
- Gastrovascular
- Skeleton structure
- Absent
- Level of Organisation
- Tissue level
- Regulation of Osmosis
- Osmoconformer
Ecology
Provides shelter to small organisms
Part of benthic food web
Stabilizes soft sea floor
Economic Importance
Used in marine ecological studies
Educational importance
Indicator of healthy benthic habitats