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Ricordeidae
''Ricordea'' is genus of corals. It is the only genus in the monotypic family Ricordeidae. Species The following species are recognized in the genus ''Ricordea'': * '' Ricordea florida'' Duchassaing & Michelotti, 1860 * ''Ricordea yuma ''Ricordea yuma'' is a species of coral in the family Ricordeidae, order Corallimorpharia; This order of corals do not produce the distinctive calcification of the closely related Scleractinian, or reef building corals. ''Ricordea yuma'' are foun ...'' (Carlgren, 1900) References Ricordeidae Hexacorallia genera {{Hexacorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ricordea Yuma
''Ricordea yuma'' is a species of coral in the family Ricordeidae, order Corallimorpharia; This order of corals do not produce the distinctive calcification of the closely related Scleractinian, or reef building corals. ''Ricordea yuma'' are found on the sea floor in relatively shallow, tropical or subtropical ocean environments. Distinctive features include a large mouth disk that takes up most of the organism, and brightly colored tentacles. ''Ricordea yuma'' can reproduce both sexually, and asexually by budding a new coral with replicated elements from the mother coral. This may be one mechanism of how they are able to spread and overtake areas rapidly; They have been observed being competitively successful at monopolizing areas by excluding reef-building coral species, after a disturbance in the substrate. Anatomy and Morphology ''Ricordea yuma'' is a corallimorpharian species, often called “naked” or “false” corals because they lack the distinctive calcification ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ricordea Florida
''Ricordea florida'' is a species of coral of the family Ricordeidae and the order Corallimorpharia, whose members are also called false corals. Due to their bright pigmentation and fluorescence under ultraviolet light, ''Ricordea florida'' is very popular in hobby saltwater aquariums. Morphology ''Ricordea florida'' is a coral without a skeleton, having the same internal anatomical structure as corals of the order Scleractinia. The body of the coral is small and cylindrical. The basal end resembles a flat disk that functions as a foot. The apical end is the oral disk which functions as one or more mouths. These mouths are centered amid short rounded tentacles bearing cnidocytes, whose sting contains paralytic neurotoxins. The sting is used to subdue prey to make it more easily ingested via the mouth, or as a defensive mechanism to evade enemies. The stinging ability of this species is lower than in most corals. ''Ricordea florida'' reaches 7.5 cm in diameter. The fleshy b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ricordeidae
''Ricordea'' is genus of corals. It is the only genus in the monotypic family Ricordeidae. Species The following species are recognized in the genus ''Ricordea'': * '' Ricordea florida'' Duchassaing & Michelotti, 1860 * ''Ricordea yuma ''Ricordea yuma'' is a species of coral in the family Ricordeidae, order Corallimorpharia; This order of corals do not produce the distinctive calcification of the closely related Scleractinian, or reef building corals. ''Ricordea yuma'' are foun ...'' (Carlgren, 1900) References Ricordeidae Hexacorallia genera {{Hexacorallia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when m ... [...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] |
