What is ophiopluteus larva?
the larva of echinoderms of the class Ophiuroidea. An ophiopluteus has four pairs of long processes, or arms, enclosing calcareous rods. These arms, which are covered with a strip of ciliate epithelium, enable the larva to swim.
What is the classification of a brittle star?
OphiuroideaBrittle stars / Scientific name
brittle star, also called serpent star, any of the 2,100 living species of marine invertebrates constituting the subclass Ophiuroidea (phylum Echinodermata).
What are the 4 major groups of echinoderms?
Summary. Echinoderms include the star fish, sea urchins, sand dollars, and feather stars.
What is Ophiopluteus?
Definition of ophiopluteus : the pluteus of a brittle star.
What is auricularia larva?
auricularia larva In Asteroidea and Holothuroidea, a larval form in which a sinuous, ciliated band outlines the body. A Dictionary of Zoology.
What class are feather stars?
class Crinoidea
Feather stars are in the class Crinoidea, which is a group of echinoderms that includes sea lilies and feather stars. There are about 550 species of crinoid alive today, but crinoids have been around for a long time.
How many species of brittle stars are there?
2,000 species
There are around 2,000 species of brittle star — more than any other group of sea stars.
What organisms are in class Asteroidea?
The class Asteroidea belongs to the phylum Echinodermata. As well as the starfish, the echinoderms include sea urchins, sand dollars, brittle and basket stars, sea cucumbers and crinoids.
How many species of Asteroidea are there?
1800 species
The Asteroidea (also known as sea stars or starfish) are among the most diverse and familiar of the living Echinodermata, including over 1800 species from every ocean basin in the world, including the Atlantic, Indian, and Pacific as well as the Arctic and the Southern Ocean, inhabiting intertidal to 6000 m abyssal …
How many species are in Echinodermata?
7000 living
Echinodermata is a phylum of about 7000 living species distributed among five classes: Echinoidea (sea urchins and sand dollars), Holothuroidea (sea cucumbers), Ophiuroidea (brittle stars), Asteroidea (sea stars), and Crinoidea (feather stars and sea lilies).
What are the classification of Echinodermata?
Echinoderm
| Echinoderms Temporal range: | |
|---|---|
| Extant echinoderms of the five classes: Protoreaster linckii (Asteroidea), Ophiocoma scolopendrina (Ophiuroidea), Stomopneustes variolaris (Echinoidea), Oxycomanthus bennetti (Crinoidea), Actinopyga echinites (Holothuroidea) | |
| Scientific classification | |
| Kingdom: | Animalia |
What is bipinnaria in biology?
Definition of bipinnaria : a bilaterally symmetrical free-swimming larva of certain starfishes that swims by means of ciliated bands.
What is brachiolaria larva?
A brachiolaria is the second stage of larval development in many starfishes. It follows the bipinnaria. Brachiolaria have bilateral symmetry, unlike the adult starfish, which have a pentaradial symmetry.
What is the phylum of feather?
Echinodermata
| elegant feather star | |
|---|---|
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Crinoidea |
| Subclass: | Articulata |
What is the zoological name of feather star?
CrinoideaCrinoids / Scientific name