Genus is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland, Australia. The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. It supports a wide diversity of life and was selected as a World Heritage Site in 1981. CNN labelled it one of the seven natural wonders of the world. The Queensland National Trust named it a state icon of Queensland.
The Philippine Sea is a marginal sea of the Western Pacific Ocean east of the Philippine archipelago, occupying an estimated surface area of 5 million square kilometers. The Philippine Sea Plate forms the floor of the sea. Its western border is the first island chain to the west, comprising the Ryukyu Islands in the northwest and Taiwan in the west. Its southwestern border comprises the Philippine islands of Luzon, Catanduanes, Samar, Leyte and Mindanao. Its northern border comprises the Japanese islands of Honshu, Shikoku and Kyūshū. Its eastern border is the second island chain to the west, comprising the Bonin Islands and Iwo Jima in the northeast, the Mariana Islands in the due east, and Halmahera, Palau, Yap and Ulithi in the southeast. Its southern border is Indonesia's Morotai Island.
Marine ecosystems are the largest of Earth's aquatic ecosystems and are distinguished by waters that have a high salt content. These systems contrast with freshwater ecosystems, which have a lower salt content. Marine waters cover more than 70% of the surface of the Earth and account for more than 97% of Earth's water supply and 90% of habitable space on Earth. Marine ecosystems include nearshore systems, such as the salt marshes, mudflats, seagrass meadows, mangroves, rocky intertidal systems and coral reefs. They also extend outwards from the coast to include offshore systems, such as the surface ocean, pelagic ocean waters, the deep sea, oceanic hydrothermal vents, and the sea floor. Marine ecosystems are characterized by the biological community of organisms that they are associated with and their physical environment.
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
Alvania is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.
Cichliformes is an order of fishes. Its members were previously classified under the order Perciformes, but now many authorities consider it to be an independent order within the subseries Ovalentaria.
Oxudercidae is a family of gobies which consists of four subfamilies which were formerly classified under the family Gobiidae. The family is sometimes called the Gobionellidae, but Oxudercidae has priority. The species in this family have a cosmopolitan distribution in temperate and tropical areas and are found in marine and freshwater environments, typically in inshore, euryhaline areas with silt and sand substrates.
The Interim Register of Marine and Nonmarine Genera (IRMNG) is a taxonomic database which attempts to cover published genus names for all domains of life from 1753 in zoology up to the present, arranged in a single, internally consistent taxonomic hierarchy, for the benefit of Biodiversity Informatics initiatives plus general users of biodiversity (taxonomic) information. In addition to containing over 490,000 published genus name instances as at March 2020, the database holds over 1.7 million species names, although this component of the data is not maintained in as current or complete state as the genus-level holdings. IRMNG can be queried online for access to the latest version of the dataset and is also made available as periodic snapshots or data dumps for import/upload into other systems as desired.
Tosapusia is a genus of sea snails, marine gastropod mollusks, in the family Costellariidae, the ribbed miters.
Tosapusia bismarckeana is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia duplex is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia evelyniana is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia isaoi is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia kurodai is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia longirostris is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia myurella is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia sauternesensis is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia turriformis is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
Tosapusia vitiaz is a species of sea snail, a marine gastropod mollusk, in the family Costellariidae, the ribbed miters.
