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Caprella Acanthogaster
''Caprella acanthogaster'' is a species of skeleton shrimp in the genus ''Caprella''. It is native to northeast Asia. It closely resembles ''Caprella mutica'' but can be distinguished by its smooth first and second pereonites, as well as its linear-shaped gills. References Corophiidea Crustaceans described in 1890 {{amphipod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of 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 produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, 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 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 specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skeleton Shrimp
Caprellidae is a family of amphipods commonly known as skeleton shrimps. Their common name denotes the threadlike slender body which allows them to virtually disappear among the fine filaments of seaweed, hydroids and bryozoans. They are sometimes also known as ghost shrimps. Description Caprellids are easily recognizable from other amphipods because of their slender elongated bodies. Their bodies can be divided into three parts: the cephalon (head), the pereon (thorax), and the abdomen. The pereon comprises most of the length of the body. It is divided into seven segments known as pereonites. The cephalon is usually fused to the first pereonite; while the highly reduced and almost invisible abdomen is attached to the posterior of the seventh pereonite. They possess two pairs of antennae, with the first pair usually longer than the second pair. The cephalon contains mandibles, maxillae, and maxillipeds which function as mouthparts. Each pereonite has a pair of appendages know ... [...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] |
Caprella
''Caprella'' is a large genus of skeleton shrimps belonging to the subfamily Caprellinae of the family Caprellidae. It includes approximately 170 species. The genus was first established by Jean-Baptiste Lamarck in his great work ''Système des animaux sans vertèbres'' (1801) to describe ''Cancer linearis'' (now ''Caprella linearis'') and ''Squilla ventricosa'' (now '' Phtisica marina''). *'' Caprella acanthifera'' Leach, 1814 *''Caprella acanthogaster'' Mayer, 1890 *'' Caprella acanthopoda'' Guiler, 1954 *''Caprella advena'' Vassilenko, 1974 *'' Caprella aino'' Utinomi, 1943 *'' Caprella alaskana'' Mayer, 1903 *'' Caprella alaskensis'' Holmes, 1904 *'' Caprella algaceus'' Vassilenko, 1967 *'' Caprella andreae'' Mayer, 1890 *'' Caprella angulosa'' Mayer, 1903 *''Caprella angusta'' Mayer, 1903 *''Caprella arimotoi'' Takeuchi, 1993 *''Caprella astericola'' Jankowski & Vassilenko, 1973 *''Caprella bacillus'' Mayer, 1903 *''Caprella bathyalis'' Vassilenko, 1972 *'' Caprella bathy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area of , about 30% of Earth's total land area and 8.7% of Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Its 4.7 billion people constitute roughly 60% of the world's population. In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. It is somewhat arbitrary and has moved since its first conception in classical antiquity. The division of Eurasia into two continents reflects East–West cultural, linguistic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caprella Mutica
''Caprella mutica'', commonly known as the Japanese skeleton shrimp, is a species of skeleton shrimp. They are relatively large caprellids, reaching a maximum length of . They are sexually dimorphic, with the males usually being much larger than the females. They are characterized by their "hairy" first and second thoracic segments and the rows of spines on their bodies. Body color ranges from green to red to blue, depending on the environment. They are omnivorous highly adaptable opportunistic feeders. In turn, they provide a valuable food source for fish, crabs, and other larger predators. They are usually found in dense colonies attached to submerged man-made structures, floating seaweed, and other organisms. ''C. mutica'' are native to shallow protected bodies of water in the Sea of Japan. In as little as 40 years, they have become an invasive species in the North Atlantic, North Pacific, and along the coasts of New Zealand. They are believed to have been acciden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corophiidea
Corophiida is an infraorder of amphipods that contains the two parvorders Caprellidira (skeleton shrimp and whale lice) and Corophiidira. In 2003-2013 this group was treated as a suborder, Corophiidea, which in turn had been re-established to contain the taxa previously treated as the suborder Caprellidea, together with some families formerly placed in the suborder Gammaridea. More recently, the group was made part of the new suborder Senticaudata.Lowry, J.K. & Myers, A.A. (2013A Phylogeny and Classification of the Senticaudata subord. nov. (Crustacea: Amphipoda) Zootaxa ''Zootaxa'' is a peer-reviewed scientific mega journal for animal taxonomists. It is published by Magnolia Press (Auckland, New Zealand). The journal was established by Zhi-Qiang Zhang in 2001 and new issues are published multiple times a week. ... 3610 (1): 1-80. References External links * Amphipoda Arthropod infraorders {{Amphipod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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