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Catriona Tema
''Catriona tema'' is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae. Distribution This species was described from Teshie, between Accra and Tema, Ghana. Description The size of the first specimen found of this species was 11 mm. The body is pearl-grey in colour and there is a white band across the front of the head which extends along the side of the head almost to the first cerata. There are about 40 cerata, translucent with a broad white band below the tip and scattered white glands in the epidermis of the lower part. The rhinophores are tipped with white and have an orange line extending from the base to about the halfway point where it becomes an orange band. Ecology ''Catriona tema'' was found on the sea shore at low water on the hydroid '' Pennaria disticha'', family Pennariidae ''Pennaria'' is a genus of hydrozoans. It is the only genus within the monotypic family Pennariidae. Species The following specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), 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 reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), 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 binomial nomenclature, 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 specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Slug
Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails (marine gastropod mollusks) that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells. Sea slugs have an enormous variation in body shape, color, and size. Most are partially translucent. The often bright colors of reef-dwelling species implies that these animals are under constant threat of predators, but the color can serve as a warning to other animals of the sea slug's toxic stinging cells ( nematocysts) or offensive taste. Like all gastropods, they have small, razor-sharp teeth, called radulas. Most sea slugs have a pair of rhinophores—sens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nudibranch
Nudibranchs () are a group of soft-bodied marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", "dragon", or "sea rabbit". Currently, about 3,000 valid species of nudibranchs are known.Ocean Portal (2017)A Collage of Nudibranch Colors Smithsonian National Museum of Natural History. Retrieved 17 April 2018. The word "nudibranch" comes from the Latin "naked" and the Ancient Greek () " gills". Nudibranchs are often casually called sea slugs, as they are a family of opistobranchs (sea slugs), within the phylum Mollusca (molluscs), but many sea slugs belong to several taxonomic groups which are not closely related to nudibranchs. A number of these other sea slugs, such as the photosynthetic '' Sacoglossa'' and the colourful Aglajidae, are often confused with nudibranchs. Dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinchesiidae
Trinchesiidae is a family of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the superfamily Fionoidea. Taxonomic history This family was reinstated as a result of a molecular phylogenetics study.Korshunova, T.; Martynov, A.; Picton, B. (2017)Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea.Zootaxa. 4324(1): 1. Genera Genera within the family Trinchesiidae include: * '' Catriona'' Winckworth, 1941 * '' Diaphoreolis'' Iredale & O'Donoghue, 1923 * '' Phestilla'' Bergh, 1874 * ''Rubramoena'' Cella, Carmona, Ekimova, Chichvarkhin, Schepetov & Gosliner, 2016 * ''Selva'' Edmunds, 1964 * ''Tenellia ''Tenellia'' is a genus of sea slugs, aeolid nudibranchs, marine gastropod mollusks in the family Trinchesiidae.Gofas, S. (2004)''Tenellia'' A. Costa, 1866.In: MolluscaBase (2016). Accessed through: World Register of Marine Species on 2016-12- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teshie
Teshie is a coastal town in the Ledzokuku Municipal District, a district in the Greater Accra Region of southeastern Ghana. Teshie is the ninth most populous settlement in Ghana, with a population of 171,875 people. Politics Teshie is in the Ledzokuku constituency led by Hon. Ben Ayiku, a member of the National Democratic Congress, who succeeded Hon. Dr Bernard Okoe Boye of the New Patriotic Party. Traditions Teshie is one of the independent towns of the Ga State, every August, the town celebrates the Homowo festival. It is believed that the original Teshie people came from La, a town that lies to the west of Teshie. Fort Augustaborg, built by the Danes in 1787, is located in Teshie and was occupied by the British from 1850 to 1957. It is believed that Teshie is 300 years old as of 2011. The town is rich in diversity as a result of the country's current democracy and development program. Teshie stretches from the Kpeshie Lagoon to Teshie-Nungua Estates (first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accra
Accra (; tw, Nkran; dag, Ankara; gaa, Ga or ''Gaga'') is the capital and largest city of Ghana, located on the southern coast at the Gulf of Guinea, which is part of the Atlantic Ocean. As of 2021 census, the Accra Metropolitan District, , had a population of 284,124 inhabitants, and the larger Greater Accra Region, , had a population of 5,455,692 inhabitants. In common usage, the name "Accra" often refers to the territory of the Accra Metropolitan District as it existed before 2008, when it covered .Sum of the land areas of Accra Metropolitan District, Ablekuma Central Municipal District, Ablekuma North Municipal District, Ablekuma West Municipal District, Ayawaso Central Municipal District, Ayawaso East Municipal District, Ayawaso North Municipal District, Ayawaso West Municipal District, Korle Klottey Municipal District, Krowor Municipal District, La Dadekotopon Municipal District, Ledzokuku Municipal District, and Okaikoi North Municipal District, as per the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tema
Tema is a city on the Bight of Benin and Atlantic coast of Ghana. It is located east of the capital city; Accra, in the region of Greater Accra, and is the capital of the Tema Metropolitan District. As of 2013, Tema is the eleventh most populous settlement in Ghana, with a population of approximately 161,612 people – a marked decrease from its 2005 figure of 209,000.Tema . GhanaWeb.com. Retrieved 9 March 2013. The (00 ) passes directly through the city. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghana
Ghana (; tw, Gaana, ee, Gana), officially the Republic of Ghana, is a country in West Africa. It abuts the Gulf of Guinea and the Atlantic Ocean to the south, sharing borders with Ivory Coast in Ghana–Ivory Coast border, the west, Burkina Faso in Burkina Faso–Ghana border, the north, and Togo in Ghana–Togo border, the east.Jackson, John G. (2001) ''Introduction to African Civilizations'', Citadel Press, p. 201, . Ghana covers an area of , spanning diverse biomes that range from coastal savannas to tropical rainforests. With nearly 31 million inhabitants (according to 2021 census), Ghana is the List of African countries by population, second-most populous country in West Africa, after Nigeria. The capital and List of cities in Ghana, largest city is Accra; other major cities are Kumasi, Tamale, Ghana, Tamale, and Sekondi-Takoradi. The first permanent state in present-day Ghana was the Bono state of the 11th century. Numerous kingdoms and empires emerged over the centuri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
