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Lyreidus Waitakiensis
''Lyreidus'' is a genus of crabs in the family Raninidae, containing the following species: *''Lyreidus brevifrons'' Sakai, 1937 *''Lyreidus stenops'' Wood-Mason, 1887 *''Lyreidus tridentatus ''Lyreidus tridentatus'' is a species of crab in the family Raninidae. Description This species as an unusual carapace in that it is longer than it is wide. Males grow to about 5.2 cm long and 1.3 cm wide. Females grow to 3 cm wi ...'' de Haan, 1841 References Crabs {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyreidus Tridentatus
''Lyreidus tridentatus'' is a species of crab in the family Raninidae. Description This species as an unusual carapace in that it is longer than it is wide. Males grow to about 5.2 cm long and 1.3 cm wide. Females grow to 3 cm wide and about 4.9 cm long. They have a reddish to reddish-brown body, with a reticulated pattern. The pereopods are pale-pinkish tan colour. Distribution ''Lyreidus tridentatus'' occurs in Australia, New Zealand, New Caledonia, China, Taiwan, Japan, Fiji, and Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat .... Habitat This species lives on shelves and slope substrates in sandy mud. References External links Image Crabs Crustaceans described in 1841 {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhem De Haan
Wilhem de Haan (7 February 1801 in Amsterdam – 15 April 1855 in Leiden) was a Dutch zoologist. He specialised in the study of insects and crustaceans, and was the first keeper of invertebrates at the Rijksmuseum in Leiden, now Naturalis. He was forced to retire in 1846, when he was partially paralysed by a spinal disease. He was responsible for the invertebrate volume of Siebold's '' Fauna Japonica'', which was published in 1833, and introduced the western world for the first time to Japanese wildlife The wildlife of Japan includes its flora, fauna, and natural habitats. The islands of Japan stretch a long distance from north to south and cover a wide range of climatic zones. This results in a high diversity of wildlife despite Japan's isolati .... He named a great many new taxa, and several taxa are named in his honour. He published significant work on both mantids and phasmids (1842). References *de Haan, W. ''Bijdragen tot de Kennis Orthoptera.'' in C.J. Temminck, ''Verh ... [...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] |
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] |
Raninidae
Raninidae is a family of unusual crabs, sometimes known as "frog crabs", on account of their frog-like appearance. They are taken by most scientists to be quite primitive among the true crabs. They closely resemble the (unrelated) mole crabs, due to parallel evolution or convergent evolution. In both groups, the claws are modified into tools for digging, and the body is a rounded shape that is easy to bury in sand. Unlike most other true crabs, the abdomens of raninids are not curled under the cephalothorax. They spend most of their time buried in the sand with their eyes popping out so they can grab unaware prey. They also emerge for mating. Raninids are omnivores and some have been found to have consumed Sardinella, crab, shrimp, bivalve, ray, hydroid, copepod, and squid. The earliest fossil attributable to the family Raninidae dates from the Albian. Description Raninids dorsal surfaces have varying textures; smooth, pitted, granular, inclined or fungiform nodes, eroded, sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyreidus Brevifrons
''Lyreidus'' is a genus of crabs in the family Raninidae, containing the following species: *'' Lyreidus brevifrons'' Sakai, 1937 *'' Lyreidus stenops'' Wood-Mason, 1887 *''Lyreidus tridentatus ''Lyreidus tridentatus'' is a species of crab in the family Raninidae. Description This species as an unusual carapace in that it is longer than it is wide. Males grow to about 5.2 cm long and 1.3 cm wide. Females grow to 3 cm wi ...'' de Haan, 1841 References Crabs {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyreidus Stenops
''Lyreidus'' is a genus of crabs in the family Raninidae, containing the following species: *''Lyreidus brevifrons'' Sakai, 1937 *'' Lyreidus stenops'' Wood-Mason, 1887 *''Lyreidus tridentatus ''Lyreidus tridentatus'' is a species of crab in the family Raninidae. Description This species as an unusual carapace in that it is longer than it is wide. Males grow to about 5.2 cm long and 1.3 cm wide. Females grow to 3 cm wi ...'' de Haan, 1841 References Crabs {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
