Red knobbed starfish
Phylum - Echinodermata
Class - Asteroidea
Common name - star fish
Survival
They can puke out their stomach for survival.
Their prickly exteriors make them unappealing to many potential predators. Some starfish are venomous, making them dangerous to potential predators.
Their prickly exteriors make them unappealing to many potential predators. Some starfish are venomous, making them dangerous to potential predators.
Location
Morphology
Symmetry - Radial symmetry
Appearance -Most starfish typically have five rays or arms, which radiate from a central disc. However, several species frequently have six or more arms. Several asteroid groups, such as the Solasteridae, have 10 to 15 arms, whereas some species, such as the Antarctic Labidiaster annulatus can have up to 50. It is not unusual for species that typically have five rays to exceptionally possess six or more rays due to developmental abnormalities
Structure -
Appearance -Most starfish typically have five rays or arms, which radiate from a central disc. However, several species frequently have six or more arms. Several asteroid groups, such as the Solasteridae, have 10 to 15 arms, whereas some species, such as the Antarctic Labidiaster annulatus can have up to 50. It is not unusual for species that typically have five rays to exceptionally possess six or more rays due to developmental abnormalities
Structure -
Facts
Red-knobbed starfish inhabit relatively shallow, coastal waters of the Indian ocean, at depths ranging from a couple of feet to over a hundred.
They obtain some of their food from scavenging but also need supplemental feed about once a week.
In particular it feeds upon algae, especially when young, and any smaller animals slow enough for it to catch.
As they mature, they develop distinctive spiky red knobs.
Red-knobbed starfish reach a maximum length of approximately 12 inches.
They obtain some of their food from scavenging but also need supplemental feed about once a week.
In particular it feeds upon algae, especially when young, and any smaller animals slow enough for it to catch.
As they mature, they develop distinctive spiky red knobs.
Red-knobbed starfish reach a maximum length of approximately 12 inches.