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Zebra Crab
''Zebrida'' is a small genus of distinctive striped crabs, known as zebra crabs, that live in association with sea urchins in the Indo-Pacific. Description ''Zebrida'' was described by Arthur Adams (zoologist), Arthur Adams as "a torpid, though elegant little crustacean". It is "the most unusual" of the genera in the subfamily Eumedoninae, with long spines projecting from the body, and a distinctive pattern of stripes across the exoskeleton. Taxonomy and distribution The genus was thought to be monotypic for a long time, but in 1999, Peter Ng & Diana Chia recognised two additional species, bringing the total number to three. * ''Zebrida adamsii'' is widespread in the Indian Ocean and western Pacific Ocean, from Japan to Australia. * ''Zebrida brevicarinata'' is only known from Western Australia. * ''Zebrida longispina'' is only known from Western Australia. Ecology and life cycle Crabs of the genus ''Zebrida'' live, often in pairs, in association with sea urchins, including ''To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebrida Adamsii
''Zebrida adamsii'' is a distinctively striped species of crab that lives in association with a sea urchin in the Indo-Pacific region. It is cryptically coloured with vertical stripes and has special adaptations to its legs to enable it to cling to its host's spines. Description ''Z. adamsii'' is a small crab, described as "a torpid, though elegant little crustacean" by the English naturalist Arthur Adams when it was first discovered by him and the Scottish zoologist Adam White during the surveying voyage of HMS ''Samarang'' in the Far East between 1843 and 1846. The carapace and limbs are smooth and hairless and are adorned with long spines. The colour is pink with dark, reddish-brown vertical stripes. Distribution ''Z. adamsii'' has a wide distribution in shallow water in the tropical Indian Ocean and western Pacific Ocean. The type locality is the estuary of the Pantai River in Borneo at a depth of about . Ecology ''Z. adamsii'' lives in symbiosis with a sea urchin, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Ethology
A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of what happened over the course of a day or other period *Daybook, also known as a general journal, a daily record of financial transactions *Logbook, a record of events important to the operation of a vehicle, facility, or otherwise *Record (other) *Transaction log, a chronological record of data processing *Travel journal In publishing, ''journal'' can refer to various periodicals or serials: *Academic journal, an academic or scholarly periodical **Scientific journal, an academic journal focusing on science **Medical journal, an academic journal focusing on medicine **Law review, a professional journal focusing on legal interpretation *Magazine, non-academic or scholarly periodicals in general **Trade magazine, a magazine of interest to those of a particular profession or trade **Literary magazine, a magazine devoted to literat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthocidaris
''Acanthocidaris'' is a genus of echinoderms belonging to the family Cidaridae. The species of this genus are found in Australia, Indian Ocean and Malesia Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms, and also a phytogeographical floristic region in the Paleotropical Kingdom. It has been given different definitions. The .... Species: *'' Acanthocidaris curvatispinis'' *'' Acanthocidaris hastigera'' *'' Acanthocidaris maculicollis'' References Cidaridae Cidaroida genera {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudocentrotus Depressus
''Pseudocentrotus depressus'', commonly known as the pink sea urchin, is a species of sea urchin, one of only two species in the genus ''Pseudocentrotus''. It was first described in 1864 by the American marine zoologist Alexander Agassiz as ''Toxocidaris depressus'', having been collected during the North Pacific Exploring and Surveying Expedition undertaken by Captain Cadwalader Ringgold and later Captain John Rodgers. Description This sea urchin is distinctive in its shape, with the oral (lower) surface being flat and the aboral (upper) surface markedly depressed in the centre. The tubercles are numerous and even in size, and the spines are fine and short, their diameter being about a quarter of their length. The inter-ambulacral plates are broad and the pore pairs are arranged in slightly curved groups of six or seven pairs. Ecology As is the case with most other sea urchins, the sexes are separate in this species, and adults liberate eggs and sperm into the water column ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliocidaris Crassispina
''Heliocidaris'' is a genus of sea urchins, part of the familia Echinometridae. Characteristics This genus is typical of west Pacific Ocean (Japan to New Zealand), in particular in Australia. Some species are edible. List of species This genus contains 6 extant species and 1 fossil : *''Heliocidaris australiae'' ( A. Agassiz, 1872) *''Heliocidaris bajulus'' (Dartnall, 1972) *'' Heliocidaris crassispina'' ( A. Agassiz, 1863) *''Heliocidaris erythrogramma'' (Valenciennes, 1846) *'' Heliocidaris ludbrookae'' Philip, 1965 † *'' Heliocidaris robertsi'' Lindley, 2004 *''Heliocidaris tuberculata'' (Lamarck, 1816) Image:Heliocidaris erythrogramma P1142284.JPG, ''Heliocidaris erythrogramma'' Image:Heliocidaris tuberculata.jpg, ''Heliocidaris tuberculata ''Heliocidaris'' is a genus of sea urchins, part of the familia Echinometridae. Characteristics This genus is typical of west Pacific Ocean (Japan to New Zealand), in particular in Australia. Some species are edible. List o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmacis Virgulata
Salmacis ( grc, Σαλμακίς) was an atypical Naiad nymph of Greek mythology. She rejected the ways of the virginal Greek goddess Artemis in favour of vanity and idleness. Mythology Ovid's version Salmacis' attempted rape of Hermaphroditus is narrated in the fourth book of Ovid's ''Metamorphoses'' (see also Dercetis). One day Hermaphroditus went swimming in his pool. Upon seeing him, Salmacis was struck with love for him, approached him and confessed her love to him; but he was not interested, and demanded she leave. She did so, but her passion took her back, unable to stay away from him. As Hermaphroditus emerged from the pool, she threw herself at him, and forcibly kissed him as he tried to escape. Salmacis then cried to the gods and begged them to let them stay together forever; and the gods answered by fusing them together for all time, into a deity that had both male and female parts. She thus becomes one with Hermaphroditus and he curses the fountain to have the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmacis Bicolor
''Salmacis bicolor'' is a species of sea urchin in the Temnopleuroida family Temnopleuridae found in the western Indian Ocean and the Red Sea. the name derives from Salmacis (Ancient Greek: 'Σαλμακίς'), a nymph of Greek mythology A major branch of classical mythology, Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of Ancient Greek folklore. These stories concern the Cosmogony, origin and Cosmology#Metaphysical co ..., and latin 'bicolor' (two-coloured). References Temnopleuroida {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asthenosoma Ijimai
''Asthenosoma ijimai'' is a species of sea urchin of the family Echinothuriidae. Their armour is covered with spines. It is placed in the genus Asthenosoma and lives in the sea. Asthenosoma ijimai was first scientifically described in 1897 by Yoshiwara.Kroh, A. (2010). ''Asthenosoma ijimai'' (Yoshiwara, 1897). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * ''Asterechinus elegans ''Asterechinus elegans'' is a species of sea urchin of the family Trigonocidaridae. Their armour is covered with spines. It is placed in the genus Asterechinus and lives in the sea. Asterechinus elegans was first scientifically described in 1942 ...'' * '' Asthenosoma dilatatum'' * '' Asthenosoma intermedium'' References ijimai Animals described in 1897 {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diadema Setosum
''Diadema setosum'' is a species of long-spined sea urchin belonging to the family Diadematidae. It is a typical sea urchin, with extremely long, hollow spines that are mildly venomous. ''D. setosum'' differs from other '' Diadema'' with five, characteristic white dots that can be found on its body. The species can be found throughout the Indo-Pacific region, from Australia and Africa to Japan and the Red Sea. Despite being capable of causing painful stings when stepped upon, the urchin is only slightly venomous and does not pose a serious threat to humans. Description As a member of the class Echinoidea, the anatomy of ''Diadema setosum'' is that of a typical sea urchin. All of the animal's internal organs are enclosed within the spherical, black test that is essentially the body of the organism. However, the body is not perfectly spherical – ''Diadema'' tests are slightly dorso-ventrally compressed. Protruding outwards from the central body are the long spines iconic of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripneustes Gratilla
''Tripneustes gratilla'', the collector urchin, is a species of sea urchin. Collector urchins are found at depths of in the waters of the Indo-Pacific, Hawaii, the Red Sea, and The Bahamas. They can reach in size. Description Collector urchins are dark in color, usually bluish-purple with white spines. The pedicles are also white, with a dark or black base. Individuals found at Green Island had orange-tipped spines. The spines of some specimens are wholly orange, while those of others are only orange-tipped or completely white. This color disappears when the individual dies or is taken out of the ocean, and is difficult to preserve. Collector urchins reach in size. Debris tends to "collect" on these urchins, hence their name. Unlike some other sea urchins, collector urchins graze continually, day and night. They graze near the substrate, and their diet includes algae, periphyton, and seagrass. Most collector urchins feed on seagrass fronds; this has an ecological impact vary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxopneustes Elegans
''Toxopneustes elegans'' is a species of sea urchin endemic to Japan. Like the closely related flower urchin, they are venomous. Taxonomy ''Toxopneustes elegans'' is one of the four species in the genus ''Toxopneustes''. It was first described by the German zoologist Ludwig Heinrich Philipp Döderlein in 1885. The generic name ''Toxopneustes'' literally means "poison breath", derived from Greek τοξικόν άρμακον(''toksikón hármakon', "arrow oison) and πνευστος (''pneustos'', "breath"). The specific name ''elegans'' means "elegant" in Latin. It has no English common name, but it is known as ''kurosuji-rappa-uni'' (クロスジラッパウニ) in Japanese (literally "black streaked flower urchin"). Description ''Toxopneustes elegans'' resemble the more common flower urchins, but they are smaller, reaching a maximum diameter of only . They also have smaller pedicellariae, though they are still characteristically flower-like in appearance. The most distinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
