Galearctus avulsus | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Crustacea |
Class: | Malacostraca |
Order: | Decapoda |
Family: | Scyllaridae |
Genus: | Galearctus |
Species: | G. avulsus |
Binomial name | |
Galearctus avulsus Yang, Chen & Chan, 2011 | |
Galearctus avulsus is a species of slipper lobster that lives around New Caledonia. It was described in 2011, having previously been included in Galearctus kitanovirosus . [2] It differs from the other species of the genus Galearctus most noticeably in the shape of a groove on the sternum.
Galearctus avulsus is a small slipper lobster, with a carapace around 16–32 millimetres (0.63–1.26 in) long, including the rostrum. [2] It differs from the other species in the genus Galearctus by the shape of the groove on the midline of the sternum between the first pair of pereiopods. In the other species, this groove is narrow, but in G. avulsus, it widens and appears as if "torn away". [2]
Galearctus avulsus lives in the waters around New Caledonia and the Chesterfield Islands, at depths of 230–680 metres (750–2,230 ft). It may also occur around Fiji. [2] Although G. avulsus is very poorly known, it has a large range and no apparent threats, and is therefore listed as being of Least Concern on the IUCN Red List. [1]
In 1962, Harada described a new species of slipper lobster, "Scyllarus kitanoviriosus" from shallow water (less than 100 m or 330 ft deep) around Japan, Korea and Taiwan. [2] In 2002, Lipke Holthuis revised the Indo-Pacific slipper lobsters, erecting a new genus, Galearctus for "S. kitanoviriosus" and its nearest relatives. At the same time, Holthuis added records of G. kitanoviriosus from deeper waters in the South Pacific. [2] Re-examination of the specimens from the two parts of the range by Chien-Hui Yang, I-Shiung Chen and Tin-Yam Chan from National Taiwan Ocean University revealed constant differences between the two groups. [2] Since the type material of G. kitanoviriosus was from the northern part of the range, they described the southern populations as a new species, G. avulsus; the specific epithet avulsus meaning "torn away", in reference to the shape of the median groove on the first thoracic sternite. [2] DNA sequencing of the cytochrome oxidase I gene suggests that the nearest relative of G. avulsus is not G. kitanoviriosus but G. rapanus . [2]
Homarus is a genus of lobsters, which include the common and commercially significant species Homarus americanus and Homarus gammarus. The Cape lobster, which was formerly in this genus as H. capensis, was moved in 1995 to the new genus Homarinus.
The Cape lobster, Homarinus capensis, is a species of small lobster that lives off the coast of South Africa, from Dassen Island to Haga Haga. Only a few dozen specimens are known, mostly regurgitated by reef-dwelling fish. It lives in rocky reefs, and is thought to lay large eggs that have a short larval phase, or that hatch directly as a juvenile. The species grows to a total length of 10 cm (3.9 in), and resembles a small European or American lobster; it was previously included in the same genus, Homarus, although it is not very closely related to those species, and is now considered to form a separate, monotypic genus – Homarinus. Its closest relatives are the genera Thymops and Thymopides.
Reef lobsters, Enoplometopus, are a genus of small lobsters that live on reefs in the Indo-Pacific, Caribbean and warmer parts of the Atlantic Ocean.
Lipke Bijdeley Holthuis was a Dutch carcinologist, considered one of the "undisputed greats" of carcinology, and "the greatest carcinologist of our time".
Metanephrops boschmai, known as the Bight lobster, Bight scampi or Boschma's scampi, is a species of lobster endemic to Western Australia.
Scyllarus arctus is a species of slipper lobster which lives in the Mediterranean Sea and eastern Atlantic Ocean. It is uncommon in British and Irish waters, but a number of English-language vernacular names have been applied, including small European locust lobster, lesser slipper lobster and broad lobster.
Scyllarides latus, the Mediterranean slipper lobster, is a species of slipper lobster found in the Mediterranean Sea and in the eastern Atlantic Ocean. It is edible and highly regarded as food, but is now rare over much of its range due to overfishing. Adults may grow to 1 foot (30 cm) long, are camouflaged, and have no claws. They are nocturnal, emerging from caves and other shelters during the night to feed on molluscs. As well as being eaten by humans, S. latus is also preyed upon by a variety of bony fish. Its closest relative is S. herklotsii, which occurs off the Atlantic coast of West Africa; other species of Scyllarides occur in the western Atlantic Ocean and the Indo-Pacific. The larvae and young animals are largely unknown.
Scyllarides is a genus of slipper lobsters.
Scyllarides herklotsii is a species of slipper lobster from the Atlantic coast West Africa. It is edible, but is not commercially fished, and is taken only by accident.
Parribacus japonicus, the Japanese mitten lobster, is a species of slipper lobster. Though the common name for this lobster is the Japanese mitten lobster, it is locally called zōri-ebi (ゾウリエビ) – zōri denoting the Japanese sandal it resembles, and ebi meaning shrimp or lobster.
Scyllarus is a genus of slipper lobsters from the Atlantic Ocean, including the Mediterranean and Caribbean. Until 2002, the genus included far more species, but these are now placed in other genera. The following species remain in Scyllarus:
Galearctus is a genus of slipper lobsters, comprising the following species:
Linuparus meridionalis is a species of spiny lobster in the genus Linuparus. It lives on the sea floor around Australia, New Caledonia and parts of Indonesia, at depths of 71–315 m (233–1,033 ft). Formerly considered part of L. trigonus, it was recognised as a separate species in 2011, based on variation in colouration, and subtle morphological differences.
Thymopides is a genus of deep-water lobsters, comprising the two species Thymopides grobovi and Thymopides laurentae.
Parribacus antarcticus is a species of slipper lobster. Its common names include "sculptured mitten lobster" and "sculptured slipper lobster" in English, and ula-pehu and ula-pápapa in Hawaiian.
Nephropides caribaeus is a species of lobster, the only species in the genus Nephropides. It is found in western parts of the Caribbean Sea, from Belize to Colombia. It grows to a total length of around 170 mm (6.7 in), and is covered in conspicuous tubercles.
Ibacus ciliatus is a species of slipper lobster from the north-west Pacific Ocean.
Ibacus alticrenatus is a species of slipper lobster that lives in the waters of Australia and New Zealand.
Jasus paulensis, also commonly known as the St Paul rock lobster, is a species of spiny lobster found in the waters around Saint Paul Island in the southern Indian Ocean and around Tristan da Cunha in the southern Atlantic Ocean. At one time the rock lobsters on Tristan da Cunha were believed to be a separate species known as the Tristan rock lobster, but the use of mitochondrial DNA sequencing has shown them to be identical. Some authorities, for example the International Union for Conservation of Nature, retain them as separate species. The Tristan rock lobster features on the coat of arms and the flag of Tristan da Cunha.
Panulirus longipes, the longlegged spiny lobster, is a species of spiny lobster that lives on shallow rocky and coral reefs in the tropical Indo-Pacific region. The International Union for Conservation of Nature has assessed its conservation status as being of "least concern".