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Borojevia Voigti
''Borojevia'' is a genus of calcareous sponge in the family Clathrinidae. The genus is named after sponge researcher Radovan Borojevic. Description Calcinea in which the cormus comprises tightly anastomosed tubes. The skeleton contains regular (equiangular and equiradiate) triactines, tetractines and tripods. The apical actine of the tetractines has spines. Aquiferous system asconoid. Species * '' Borojevia aspina'' (Klautau, Solé-Cava & Borojevic, 1994) * '' Borojevia brasiliensis'' (Solé-Cava, Klautau, Boury-Esnault, Borojevic & Thorpe, 1991) * '' Borojevia cerebrum'' (Haeckel, 1872) * ''Borojevia croatica'' Klautau, Imesek, Azevedo, Plese, Nikolic & Cetkovic, 2016 * ''Borojevia crystallina'' Fontana, Cóndor-Luján, Azevedo, Pérez & Klautau, 2018 * '' Borojevia paracerebrum'' (Austin, 1996) * ''Borojevia pirella'' Van Soest & De Voogd, 2018 * '' Borojevia tetrapodifera'' (Klautau & Valentine, 2003) * ''Borojevia tenuispinata'' Azevedo, Padua, Moraes, Rossi, Muricy & Klautau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcareous Sponge
The calcareous sponges of class Calcarea are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made of calcium carbonate in the form of calcite or aragonite. While the spicules in most species have three points, in some species they have either two or four points. Biology All sponges in this class are strictly marine, and, while they are distributed worldwide, most are found in shallow tropical waters. Like nearly all other sponges, they are sedentary filter feeders. All three sponge body plans are represented within class Calcarea : asconoid, syconoid, and leuconoid. Typically, calcareous sponges are small, measuring less than in height, and drab in colour. However, a few brightly coloured species are also known. Calcareous sponges vary from radially symmetrical vase-shaped body types to colonies made up of a meshwork of thin tubes, or irregular massive forms. The skeleton has either a mesh or honeycomb structure. Classifica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
