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Glypheidea
Glypheidea is an infraorder of lobster-like decapod crustaceans, comprising a number of fossil forms and the two extant (living) genera '' Neoglyphea'' and '' Laurentaeglyphea'': The infraorder was thought to be extinct until a living species, '' Neoglyphea inopinata'', was discovered in 1975. They are now considered "living fossils", with over 256 fossil species discovered, and just two extant species. Phylogeny Glypheidea belongs to the clade Reptantia within the order Decapoda, although its exact placement within Reptantia is difficult to determine. Some phylogenetic studies consider Glypheidea to be most closely related to the infraorder Astacidea, which consists of the lobster Lobsters are Malacostraca, malacostracans Decapoda, decapod crustaceans of the family (biology), family Nephropidae or its Synonym (taxonomy), synonym Homaridae. They have long bodies with muscular tails and live in crevices or burrows on th ...s and crayfish, whereas other studies inste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurentaeglyphea
''Laurentaeglyphea neocaledonica'' is a species of Glypheoidea, glypheoid lobster, and the only species in the genus ''Laurentaeglyphea''. It is known from a single specimen collected on a guyot in the Coral Sea between Australia and New Caledonia. It is thought to be an active predator with color vision, colour vision, unlike its nearest living relative, ''Neoglyphea inopinata''. Description ''Laurentaeglyphea'' is known from a single adult female specimen, with a carapace in size. In life, the animal is whitish and marked with red patches, especially on the abdomen and the distal segments of the first pereiopods; the markings are much fainter on the carapace. ''Laurantaeglyphea'' has large :wikt:reniform, reniform (kidney-shaped) eyes, more developed in the lower half than the upper. The epistome, behind the two pairs of antenna (biology), antennae on the ventral side, is large, but considerably shorter than that of ''Neoglyphea''. ''Laurantaeglyphea'' has five pairs of pereio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |