Sealife guideThe Forcipulatida orderThe taxonomy of marine species
Explore the taxonomy of marine echinoderms with a dedicated focus on starfish and sea urchins !
The class Asteroidea, commonly known as starfish, includes more than 1,600 known species. These marine animals can reach over one meter in span with their arms fully extended and typically have five arms or a multiple of five, with the number potentially varying due to regeneration after an arm is lost. Their skeleton is made up of adjacent but not fused calcareous plates.
Blue spiny starfish
(Coscinasterias tenuispina)
(Coscinasterias tenuispina)
Purple sea star
(Pisaster ochraceus)
(Pisaster ochraceus)
Spiny starfish
(Marthasterias glacialis)
(Marthasterias glacialis)
Sunflower sea star
(Pycnopodia helianthoides)
(Pycnopodia helianthoides)
Our latestUpdates
Monday, September 1st 2025
The red hind grouper
The red hind grouper has a distinctive appearance, usually beige to brown in color, with numerous red or brown spots covering its entire body and the base of its fins. It is often found in the shallow waters of coral reefs and rocky areas, where it hides in crevices and cavities.
Monday, August 11th 2025
The banded sea snake
The coloration of the banded sea snake, also known as the yellow-lipped sea snake, is distinctive with alternating black bands and bluish to grayish areas. The tip of its head, limited to its upper lip, is yellowish.
Thursday, August 7th 2025
The princess parrotfish
The princess parrotfish stands out with a coloration fit for a princess, featuring a dominant bluish hue, with yellow along the central part of its body near the pelvic fins, transitioning into green. Two blue bands run across its head on either side of its eyes.
Photo of the Day
Hippocampe à long museau
(Hippocampus reidi)
(Hippocampus reidi)
Copyright © 2007-2025 auxBulles.com - All rights reserved. Legal notices.Photo credits - Our partners