| Archaeogeryon Temporal range: Early Miocene ~ | |
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| Genus: | Archaeogeryon Colosi, 1924 |
| Binomial name | |
| Archaeogeryon peruvianus (d'Orbigny, 1842) | |
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Archaeogeryon is an extinct genus of crab from the Miocene, the type species in the genus is Archaeogeryon peruvianus. [1] Despite the species name, the crab is only known from the Guadal Formation, Chile. [2]
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen), usually hidden entirely under the thorax. They live in all the world's oceans, in fresh water, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period.
The pygmy beaked whale, also known as the bandolero beaked whale, Peruvian beaked whale and lesser beaked whale, is the smallest of the mesoplodonts and one of the newest discoveries. There were at least two dozen sightings of an unknown beaked whale named Mesoplodon sp. A before the initial classification, and those are now believed to be synonymous with the species. The species was formally described in 1991, based on ten specimens obtained from Peru between 1976 and 1989, including a 3.72 m (12.2 ft) adult male as the type specimen. A specimen that stranded at Paracas, Peru in 1955 has since been identified as a pygmy beaked whale. Since 1987, there have been an additional 40 sightings of the species, for a total of 65.
The Japanese spider crab is a species of marine crab that lives in the waters around Japan. It has the largest leg span of any arthropod. They go through three main larval stages along with a prezoeal stage in order to grow to their great size. The genus Macrocheira contains multiple species. Two fossil species of this genus have been found, Macrocheira ginzanensis and Macrocheira yabei, both from the Miocene of Japan. The diverse taxonomic history is an important part of what these creatures are and how they evolved to be what they are today. They are sought by Crab fisheries, and are considered a delicacy in Japan. Conservation efforts are being put forth to protect these creatures and their population from the dangers of overfishing. The Japanese spider crab is similar in appearance to the much smaller European spider crab (Maja squinado) and is not to be confused with it.
Epicrionops is a genus of caecilians in the family Rhinatrematidae. Species in this genus are known from Colombia, Ecuador, Guyana and Peru, and are likely to occur in Venezuela and Brazil.
The crab-eating fox, also known as the forest fox, wood fox, bushdog or maikong, is an extant species of medium-sized canid endemic to the central part of South America, and which appeared during the Pliocene epoch. Like South American foxes, which are in the genus Lycalopex, it is not closely related to true foxes. Cerdocyon comes from the Greek words kerdo and kyon (dog) referring to the dog- and fox-like characteristics of this animal.
Exocoetus is a genus of flying fishes. It is a bony fish. The body is covered with cycloid scales. The mouth is wide, and the jaws bear teeth. It is a marine fish. The tail has hypobatic fins as the ventral lobe.
The Andean cock-of-the-rock, also known as tunki (Quechua), is a large passerine bird of the cotinga family native to Andean cloud forests in South America. It is widely regarded as the national bird of Peru. It has four subspecies and its closest relative is the Guianan cock-of-the-rock.
Chinchippus is a genus of solifugid in the Ammotrechidae family with two described species, C. peruvianus and C. viejaensis. Both species are only known from the coastal desert and guano islands of the Ica Region of central Peru.
Chaetoceros is probably the largest genus of marine planktonic diatoms with approximately 400 species described, although many of these descriptions are no longer valid. It is often very difficult to distinguish between different Chaetoceros species. Several attempts have been made to restructure this large genus into subgenera and this work is still in progress. However, most of the effort to describe species has been focused in boreal areas, and the genus is cosmopolitan, so there are probably many tropical species still undescribed. Some species are known from the fossil record, from the Quaternary of Sweden. It is the type genus of its family.
Lobatus is a genus of very large sea snails, marine gastropod mollusks in the family Strombidae, the true conchs.
Hematodinium is a genus of dinoflagellates. Species in this genus, such as Hematodinium perezi, the type species, are internal parasites of the hemolymph of crustaceans such as the Atlantic blue crab and Norway lobster. Species in the genus are economically damaging to commercial crab fisheries, including causing bitter crab disease in the large Tanner or snow crab fisheries of the Bering Sea.
Bayerius is a genus of sea snails, marine gastropod mollusks in the family Buccinidae, the true whelks.
Oroperipatus is a genus of Neotropical velvet worms in the family Peripatidae.
Microlophus peruvianus, the Peru Pacific iguana, is a species of lava lizard endemic to the Ecuador, Peru, and Chile. The species is commonly attributed to the genus Microlophus but has been attributed to the genus Tropidurus.
Lobatus peruvianus, commonly known as the Peruvian conch or the cock's comb conch, is a species of large sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs and their allies.
Macrocyclis is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Macrocyclidae. Macrocyclis is a monotypic genus, i.e. a genus that contains only one species. The single living species in this genus is Macrocyclis peruvianus.
Acentroscelus is a genus of South American crab spiders that was first described by Eugène Louis Simon in 1886. It is a senior synonym of Whittickius.
Diogenes heteropsammicola is a species of hermit crab discovered during samplings between 2012 and 2016 in the shallow waters of the Japanese Amami Islands. This D. heteropsammicola is strongly associated with the walking corals. This hermit crab species is unique due to the discovery that they use living, growing coral as a shell. Crustaceans of this type commonly replace their shell as the organism grows in size, but D. heteropsammicola are the first of their kind to use solitary corals as a shell form. Heteropsammia and Heterocyathus are the two solitary corals that this hermit species has been observed as occupying. These two coral species are also used as a home by symbiotic sipunculans of the genus Aspidosiphon, which normally occupy the corals that the crabs were found inhabiting.
Polychrus peruvianus is a species of bush anole native to Peru and Ecuador. It was initially placed in the genus, Polychroides, before being corrected in 1965.
Exocoetus peruvianus, commonly known as the Peruvian flyingfish, is a species of ray-finned fish endemic to the tropical southeast Pacific Ocean in the waters off Peru and Ecuador.
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