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Fromia Hemiopla
''Fromia hemiopla'', common name armoured sea star, is a species of marine starfish belonging to the family Goniasteridae Goniasteridae (the biscuit stars) constitute the largest family of sea stars, included in the order Valvatida. They are mostly deep-dwelling species, but the family also include several colorful shallow tropical species. Description Goniast ..., . References {{Taxonbar, from=Q2426338 hemiopla Animals described in 1913 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniasteridae
Goniasteridae (the biscuit stars) constitute the largest family of sea stars, included in the order Valvatida. They are mostly deep-dwelling species, but the family also include several colorful shallow tropical species. Description Goniasteridae are usually middle-sized sea stars with a characteristic double range of marginal plates bordering the disk and arms. Most of them have five arms, often short and triangular, around a broad central disc; many species are pentagonal or subpentagonal, covered densely with granular, seed-like protuberances, hence the name of the family "seed-star" (''gonium+aster''). The aboral face is often covered with tiny spines looking like paxillae. Pedicellariae are often valvate, and the gonads are located at the interradius. Main identification keys for this group include the presence of paxillae, granules, teeth, spines, or the shape and dimensions of marginal plate. Location and habitat They occur predominantly on deep-water continental s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fromia
''Fromia'' is a genus of starfish belonging to the family Goniasteridae. Description These species are tropical sea stars, with 5 arms but sometimes up to 7. Some species like ''Fromia monilis'' or ''Fromia nodosa ''Fromia nodosa'', commonly called elegant sea star, is a species of marine starfish belonging to the family Goniasteridae. Description The elegant sea star has five triangular arms radiating around an apparent central disc. its coloration is ...'' can be very difficult to identify, as they look like each other a lot, and even like unrelated species as those of the genus '' Paraferdinia''. Species Bibliography * Christopher Mah,Overview of the Ferdina-like Goniasteridae (Echinodermata: Asteroidea) including a new subfamily, three new genera and fourteen new species, ''Zootaxa'', vol. 4271, 2017 * Sprung, Julian y Delbeek, J.Charles- The Reef Aquarium. Volume two - Ricordea Publishing * Debelius, Helmut y Baensch, Hans A - Atlas Marino - Mergus * Gosliner, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
