Learner
LearnerZoolearn Learner
Species Profile

Pentaceros

Horned starfish

Pentaceros
KingdomAnimalia
PhylumEchinodermata
ClassAsteroidea
OrderUnknown
FamilyUnknown

Introduction

Pentaceros lives in tropical seas.

It is slow-moving and benthic.

Shows extreme skeletal development.

Size & Structure

01

Thick rigid body

02

Five short arms

03

Prominent spines

04

Bright colours

Pentaceros — 3D Model

General Features

Coelom
True coelom, reduced
Body plan
Tube within a tube body plan, Deuterostomous
Germ layer
Triploblastic
Metamerism
Absent
Body symmetry
Radial (pentaradial adult, bilateral larva)
Fertilization
External
Digestion type
Incomplete, extracellular
Nervous system
Nerve ring with radial nerves
Excretory organ
Absent
Body temperature
Poikilothermic, stenohaline
Circulatory type
Type-I (absent)
Development type
Indirect
Respiratory type
Dermal branchiae and tube feet
Mode of excretion
Ammonotelism
Circulation system
Water vascular (ambulacral) system
Skeleton structure
Endoskeleton (calcareous ossicles)
Level of Organisation
Organ-system level
Regulation of Osmosis
Osmoconformer

Ecology

Benthic predator

Reef ecosystem balance

Marine biodiversity support

Economic Importance

Morphological studies

Educational specimen

Marine awareness value