GENERAL HISTOLOGY

Detailed explanation-1: -Brittle stars belong to the class Ophiuroidea. Unlike sea stars, which have plump arms, brittle stars have long, thin arms that are sharply demarcated from the central disk. Brittle stars move by lashing out their arms or wrapping them around objects and pulling themselves forward.

Detailed explanation-2: -Overview. Ophiuroidea are commonly known as brittle stars based on the fragile nature of their snake-like arms.

Detailed explanation-3: -Ophiuroids are a large group (over 1600 species) of echinoderms that includes the brittle stars (Ophiurida) and basket stars (Euryalida). The more familiar Ophiurida, or brittle stars, usually have five arms and superficially resemble true starfish (Asteroidea).

Detailed explanation-4: -Brittle stars, serpent stars, or ophiuroids (from Latin ophiurus ‘brittle star’; from Ancient Greek (óphis) ‘serpent’, and (ourá) ‘tail’; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish.