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Haliclona (Gellius) Rava
''Haliclona (Gellius) rava'' is a species of demosponge in the family Chalinidae Chalinidae is a family of marine demosponges, containing the following genera: * '' Chalinula'' Schmidt, 1868 * '' Cladocroce'' Topsent, 1892 * '' Dendrectilla'' Pulitzer-Finali, 1983 * '' Dendroxea'' Griessinger, 1971 * ''Haliclona ''Haliclon .... It is found off the coast of Ireland. References External links * rava Sponges described in 1912 Fauna of Ireland {{demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Ireland – Natural History
The National Museum of Ireland – Natural History ( ga, Ard-Mhúsaem na hÉireann – Stair an Dúlra), sometimes called the Dead Zoo, a branch of the National Museum of Ireland, is housed on Merrion Street in Dublin, Ireland. The museum was built in 1856 for parts of the collection of the Royal Dublin Society and the building and collection were later passed to the State. The Natural History Collection comprised sub-collections for zoology, geology and botany; the geological collections have largely been held in storage from the 1960s, and the botanical collection was moved to National Botanic Gardens in 1970. However, the museum's zoological collection, and its building, have changed little since Victorian times, and it is sometimes described as a "museum of a museum" or a "stately home of death". Admission has been free of charge for decades, and attendance grew from 106,000 in 2007 to over 336,000 in 2017, and 388,000 in 2019, despite chronic staff shortages, and two o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane Stephens
Jane Stephens (9 October 1879 - 11 December 1959) was an Irish zoologist who was considered a leading authority on sponges in Ireland with specialised knowledge in other marine life who identified and named over 40 sponges new to science. From 1905 to 1920 she was employed in the Natural History Division of the National Museum of Ireland working primarily on the collections of marine invertebrates, including taking part in the Clare Island Survey. Robert Lloyd Praeger testified to her knowledge of and work with Irish sponges stating that "Most of what we know of this group, whether marine or fresh-water, in Ireland, or off the Irish coasts, is due to her work." Early life and education Stephens was born in Dublin in 1879, the sixth child of Quakers Albert and Jane Stephens. Her elder sister, Laura Stephens, was a talented linguist working as a translator in a government department. She attended Alexandra College excelling in her studies as well as hockey and lawn tennis. She t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demosponge
Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a hard, often massive skeleton made of calcium carbonate, either aragonite or calcite. They are predominantly leuconoid in structure. Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. Where spicules of silica are present, they have a different shape from those in the otherwise similar glass sponges. Some species, in particular from the Antarctic, obtain the silica for spicule building from the ingestion of siliceous diatoms. The many diverse orders in this class include all of the large sponges. Most are marine dwellers, but one order ( Spongillida) live in freshwater environments. Some species are brightly colored, with great variety in body shape; the largest species are ove ... [...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 opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chalinidae
Chalinidae is a family of marine demosponges, containing the following genera: * '' Chalinula'' Schmidt, 1868 * '' Cladocroce'' Topsent, 1892 * '' Dendrectilla'' Pulitzer-Finali, 1983 * '' Dendroxea'' Griessinger, 1971 * ''Haliclona ''Haliclona'' is a genus of demosponges in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to ma ...'' Grant, 1836 Predators An unidentified species from the family Chalinidae is a prey of the sea slug '' Tyrinna evelinae'' in Brazil.Belmonte T., Alvim J., Padula V. & Muricy G. (2015). "Spongivory by nudibranchs on the coast of Rio de Janeiro state, southeastern Brazil". ''Spixiana'' 38: 187–195PDF References Sponge families {{demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haliclona
''Haliclona'' is a genus of demosponges in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... Chalinidae. Species The following species are recognised in the genus ''Haliclona'': ;Subgenus Haliclona (Flagellia) Van Soest, 2017 * '' Haliclona (Flagellia) amirantensis'' Van Soest, 2017 * '' Haliclona (Flagellia) anataria'' (Lévi & Lévi, 1983) * '' Haliclona (Flagellia) edaphus'' De Laubenfels, 1930 * '' Haliclona (Flagellia) flagellifera'' (Ridley & Dendy, 1886) * '' Haliclona (Flagellia) hajdui'' Van Soest, 2017 * '' Haliclona (Flagellia) hamata'' (Thiele, 1903) * '' Haliclona (Flagellia) hentscheli'' Van Soest, 2017 * '' Haliclona (Flagellia) hiberniae'' Van Soest, 2017 * '' Haliclona (Flagellia) indonesiae'' Van Soest, 2017 * '' Haliclona (Flagellia) porosa'' (Fri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponges Described In 1912
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the last common ancestor of all animals, making them the sister group of all other animals. Etymology The term ''sponge'' derives from the Ancient Greek word ( 'sponge'). Overview Sponges are similar to other animals in that they are multicellular, heter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
