| Cytherella fragum | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Ostracoda |
| Order: | Platycopida |
| Family: | Cytherellidae |
| Genus: | Cytherella |
| Species: | C. fragum |
| Binomial name | |
| Cytherella fragum Jellinek, 1993 | |
Cytherella fragum is a species of seed shrimp in the family Cytherellidae. [1]
Ostracods, or ostracodes, are a class of the Crustacea, sometimes known as seed shrimp. Some 33,000 species have been identified, grouped into 7 valid orders. They are small crustaceans, typically around 1 mm (0.04 in) in size, but varying from 0.2 to 30 mm in the case of the marine Gigantocypris. The largest known freshwater species is Megalocypris princeps, which reach 8 mm in length. In most cases, their bodies are flattened from side to side and protected by a bivalve-like valve or "shell" made of chitin, and often calcium carbonate. The family Entocytheridae and many planktonic forms do not have calcium carbonate. The hinge of the two valves is in the upper (dorsal) region of the body. Ostracods are grouped together based on shell and soft part morphology, and molecular studies have not unequivocally supported the group's monophyly. They have a wide range of diets, and the class includes carnivores, herbivores, scavengers and filter feeders, but most ostracods are deposit feeders.
The Myodocopida is one of the two orders within the Myodocopa, in turn a subclass of the Ostracoda. The Myodocopida are distinguished by a worm-like seventh limb, and, usually, a rostrum above an incisure (notch) from which the antennae can protrude. Unlike other ostracods, many species of the Myodocopida have lateral compound eyes Over the last thirty years there has been much research into the morphology, behaviour and distribution of myodocopids. More recently, DNA sequences have been used to investigate the phylogeny of various groups.
Megalomyrmex is a genus of ant in the subfamily Myrmicinae. The genus is known only from the Neotropics, where some of the species are specialized parasites or predators of Attini.
Shell Beach is a beach in the Shark Bay region of Western Australia, located 45 kilometres (28 mi) south-east of Denham.
Cytherellidae is the only living family of the ostracod order Platycopida. Eyes are absent. It contains 11 genera:
Calliostoma fragum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Drupella fragum is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Drupella is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Calthalotia is an Australian genus of sea snails, marine gastropod molluscs in the family Trochidae, the top shells.
Favia is a genus of reef-building stony corals in the family Mussidae. Members of the genus are massive or thickly encrusting colonial corals, either dome-shaped or flat, and a few are foliaceous. There is a great diversity of form even among individuals of the same species. The corallites project slightly above the surface of the coral and each has its own wall. In most species, the corallites are plocoid and in some, monocentric. The septa and costae linked to the corallite wall are well developed and covered by fine teeth. The polyps only extend and feed during the night. Each one has a small number of tapering tentacles which often have a darker coloured tip; these are called stinger tentacles, or sweeper tentacles. They use these to sweep the water to see if any other coral is in its area; if so, then they begin to sting the other coral. This is commonly known as coral war. Each coral is trying to make sure it has enough room around it so it can continue to grow and have more surface area for its offspring. The columella is parietal and spongy, and there are vesicles on both the endotheca and exotheca. Members of this genus are widespread in both the Atlantic Ocean and the Indo-Pacific.
Fragum is a genus of cockles, marine bivalve molluscs in the family Cardiidae. Members of the genus have characteristic thick, sculptured shells and live buried in sand, extending their siphons to the surface to feed and breathe. They are found in the Indo-Pacific region and the Red Sea.
Fragum unedo is a species of cockle, a marine bivalve mollusc in the family Cardiidae, commonly known as the Pacific strawberry cockle. It is found in tropical seas in the Indo-Pacific region and the empty shells are prized for use in decorative crafts.
Favia fragrum is a species of colonial stony coral in the family Mussidae. It is commonly known as the golfball coral and is found in tropical waters on either side of the Atlantic Ocean.
Fragum fragum is a species of cockle, a marine bivalve mollusc in the family Cardiidae. It is commonly known as the white strawberry cockle and is found in the western Indo-Pacific Ocean. It is the type species of the genus Fragum.
Fragum erugatum is a small species of cockle, a marine bivalve mollusc in the family Cardiidae. It is found in the shallow seas off the coast of Western Australia. It is commonly known as the Hamelin cockle, cardiid cockle or heart cockle.
Calthalotia fragum is the common name of the spotted strawberry top shell or the comtesse's top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Eudistoma fragum is a species of sea squirt in the class Ascidiacea. The scientific name of the species was first validly published in 1988 by Françoise Monniot.
Fragum nivale is a species of cockle in the family Cardiidae, that lives in the Western Indian Ocean, in benthic environments. It has a body length of 1.2 cm, and the embryos are developed into a swimming trochophore larvae, that resemble an immature clam.
Cytherella is a genus of seed shrimp in the family Cytherellidae.
Parvicardium is a genus of bivalves belonging to the subfamily Lymnocardiinae of the family Cardiidae.
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