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Diogenes Pugilator
''Diogenes pugilator'' is a species of hermit crab, sometimes called the small hermit crab or south-claw hermit crab. It is found from the coast of Angola to as far north as the North Sea, and eastwards through the Mediterranean Sea, Black Sea and Red Sea. Populations of ''D. pugilator'' may be kept in check by the predatory crab '' Liocarcinus depurator''. Description Like other hermit crabs, ''D. pugilator'' conceals its soft abdomen inside an empty gastropod mollusc shell; the abdomen is twisted to fit the contours of the shell. The carapace protects the anterior part of the crab and can be up to long; it is squarish in shape, has triangular projections along the front edge, and is clad with hairs on the front two corners. The eyes are on stalks which are about half as long as the width of the carapace. The left chela (claw) is very much larger than the right one, and both claws are covered with short hairs. The chelae and other legs can be contracted into the entrance of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tritia Reticulata
''Tritia reticulata'', common name the "netted dog whelk", is a species of small European sea snail, a marine gastropod mollusc in the family Nassariidae, the dog whelks or nassa mud snails. Description The length of the shell varies between 20 mm and 35 mm. The egg-shaped shell is elongated, rounded, obtuse at its lower extremity, and pointed at the upper extremity. It is moderately thick. The conical spire is composed of eight or nine whorls, almost flat, or slightly swollen, but distant from each other. Their surface is deeply chequered by longitudinal folds, crossed by numerous striae. The aperture is moderate, white and ovate. The outer lip is thick, ornamented within with seven or eight striae, of which those of the middle are generally the largest. The columella is slightly arcuated, covered with a thin, brilliant plate. The color of this shell is of a yellowish white, reddish or chestnut-color, with a blackish blue band, passing beneath the suture. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carapace
A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron. Crustaceans In crustaceans, the carapace functions as a protective cover over the cephalothorax (i.e., the fused head and thorax, as distinct from the abdomen behind). Where it projects forward beyond the eyes, this projection is called a rostrum (anatomy), rostrum. The carapace is Calcification, calcified to varying degrees in different crustaceans. Zooplankton within the phylum Crustacea also have a carapace. These include Cladocera, ostracods, and Isopoda, isopods, but isopods only have a developed "cephalic shield" carapace covering the head. Arachnids In arachnids, the carapace is formed by the fusion of prosomal tergites into a single Plate (animal anatomy), plate which carries the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diogenidae
The Diogenidae are a family of hermit crabs, sometimes known as "left-handed hermit crabs" because in contrast to most other hermit crabs, its left chela (claw) is enlarged instead of the right. It comprises 429 extant species, and a further 46 extinct species, making it the second-largest family of marine hermit crabs, after the Paguridae. Genera *'' Allodardanus'' Haig & Provenzano, 1965 *'' Aniculus'' Dana, 1852 *'' Areopaguristes'' Rahayu & McLaughlin, 2010 *'' Annuntidiogenes'' † Fraaije, Van Bakel, Jagt & Artal, 2008 *'' Bathynarius'' Forest, 1989 *''Calcinus'' Dana, 1851 *'' Cancellus'' H. Milne-Edwards, 1836 *''Ciliopagurus'' Forest, 1995 *''Clibanarius'' Dana, 1852 *'' Dardanus'' Paul’son, 1875 *''Diogenes'' Dana, 1851 *'' Eocalcinus'' † Vía, 1959 *'' Isocheles'' Stimpson, 1858 *'' Loxopagurus'' Forest, 1964 *''Paguristes'' Dana, 1851 *''Paguropsis'' Henderson, 1888 *'' Parapaguristes'' † Bishop, 1986 *''Petrochirus'' Stimpson, 1858 *''Pseudopaguristes'' McLaug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turritella Turbona
''Turritella turbona'' is a species of sea snail, a marine gastropod mollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... Turritellidae. Description Distribution References Turritellidae Gastropods described in 1877 {{Turritellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pagurus Forbesii
''Pagurus forbesii'' is a species of hermit crab in the family Paguridae. It is found in the northeastern Atlantic Ocean and the Mediterranean Sea. Taxonomy This species was first described by the English zoologist Thomas Bell, writing in the publication ''A history of British Crustacea IV''. Although the year is usually given as 1846, the part of this publication concerned was actually published in the last week of 1845. The type locality was Falmouth in England. Later in 1846, the French zoologist Hippolyte Lucas described ''Pagurus sculptimanus'' from Oran, and this was later determined to be a synonym of ''P. forbesii''. Description The genus ''Pagurus'' consist of around 170 species including 13 found in the eastern Atlantic Ocean. Of these 13, ''Pagurus forbesii'' and '' Pagurus cuanensis'' are distinctive in having long eyestalks, and the males have characteristic pleopods numbered 2 to 5 on the left. The carapace can grow to a length of about . The right chela (claw) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paguristes Eremita
''Paguristes eremita'', the eye spot hermit crab, is a species of hermit crab in the family Diogenidae. It is found in the Mediterranean Sea. Description The carapace of this hermit crab can grow to a length of about . The rostrum is pointed and there is a spine at the tip of the small eye scale. The eye stalks are long and cylindrical and the antennal scales are thorny and nearly cover the bases of the antennae. The chelae (claws) are granulated and covered with short hairs. The left chela is slightly larger than the right one. The walking legs are laterally compressed; the first three pairs are similar in length, the fourth pair are much shorter and the fifth pair end in small claws. The general colour of this crab is orange-red to brown, and the eyes are greyish-blue. A purplish spot at the base of the dactylus is diagnostic of this species. Distribution and habitat ''Paguristes eremita'' is native to the Mediterranean Sea and adjoining Atlantic Ocean, where its range extend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cádiz
Cádiz (, , ) is a city and port in southwestern Spain. It is the capital of the Province of Cádiz, one of eight that make up the autonomous community of Andalusia. Cádiz, one of the oldest continuously inhabited cities in Western Europe, was founded by the Phoenicians.Strabo, '' Geographica'' 3.5.5 In the 18th century, the Port in the Bay of Cádiz consolidated as the main harbor of mainland Spain, enjoying the virtual monopoly of trade with the Americas until 1778. It is also the site of the University of Cádiz. Situated on a narrow slice of land surrounded by the sea‚ Cádiz is, in most respects, a typically Andalusian city with well-preserved historical landmarks. The older part of Cádiz, within the remnants of the city walls, is commonly referred to as the Old Town (Spanish: ''Casco Antiguo''). It is characterized by the antiquity of its various quarters (''barrios''), among them ''El Pópulo'', ''La Viña'', and ''Santa María'', which present a marked contr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substrate (biology)
In biology, a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae. Inert substrates are used as growing support materials in the hydroponic cultivation of plants. In biology substrates are often activated by the nanoscopic process of substrate presentation. In agriculture and horticulture * Cellulose substrate * Expanded clay aggregate (LECA) * Rock wool * Potting soil * Soil In animal biotechnology Requirements for animal cell and tissue culture Requirements for animal cell and tissue culture are the same as described for plant cell, tissue and organ culture (In Vitro Culture Techniques: The Biotechnological Principles). Desirable requirements are (i) air conditioning of a room, (ii) hot room with temperature recorder, (iii) microscope r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglesey
Anglesey (; cy, (Ynys) Môn ) is an island off the north-west coast of Wales. It forms a principal area known as the Isle of Anglesey, that includes Holy Island across the narrow Cymyran Strait and some islets and skerries. Anglesey island, at , is the largest in Wales, the seventh largest in Britain, largest in the Irish Sea and second most populous there after the Isle of Man. Isle of Anglesey County Council administers , with a 2011 census population of 69,751, including 13,659 on Holy Island. The Menai Strait to the mainland is spanned by the Menai Suspension Bridge, designed by Thomas Telford in 1826, and the Britannia Bridge, built in 1850 and replaced in 1980. The largest town is Holyhead on Holy Island, whose ferry service with Ireland handles over two million passengers a year. The next largest is Llangefni, the county council seat. From 1974 to 1996 Anglesey was part of Gwynedd. Most full-time residents are habitual Welsh speakers. The Welsh name Ynys M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swansea
Swansea (; cy, Abertawe ) is a coastal city and the second-largest city of Wales. It forms a principal area, officially known as the City and County of Swansea ( cy, links=no, Dinas a Sir Abertawe). The city is the twenty-fifth largest in the United Kingdom. Located along Swansea Bay in southwest Wales, with the principal area covering the Gower Peninsula, it is part of the Swansea Bay region and part of the historic county of Glamorgan; also the ancient Welsh commote of Gŵyr. The principal area is the second most populous local authority area in Wales with an estimated population of 246,563 in 2020. Swansea, along with Neath and Port Talbot, forms the Swansea Urban Area with a population of 300,352 in 2011. It is also part of the Swansea Bay City Region. During the 19th-century industrial heyday, Swansea was the key centre of the copper-smelting industry, earning the nickname ''Copperopolis''. Etymologies The Welsh name, ''Abertawe'', translates as ''"mouth/es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chela (organ)
A chela ()also called a claw, nipper, or pinceris a pincer (biology), pincer-like organ at the end of certain limbs of some arthropods. The name comes from Ancient Greek , through New Latin '. The plural form is chelae. Legs bearing a chela are called chelipeds. Another name is ''claw'' because most chelae are curved and have a sharp point like a claw. Chelae can be present at the tips of arthropod legs as well as their pedipalps. Chelae are distinct from spider chelicerae in that they do not contain venomous glands and cannot distribute venom. See also * Pincer (biology) * Pincer (tool) References Arthropod anatomy {{Arthropod-anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrobiologia
''Hydrobiologia'', ''The International Journal of Aquatic Sciences'', is a peer-reviewed scientific journal publishing 21 issues per year, for a total of well over 4000 pages per year. ''Hydrobiologia'' publishes original research, reviews and opinions investigating the biology of freshwater and marine habitats, including the impact of human activities. Coverage includes molecular-, organism-, community -and ecosystem-level studies dealing with biological research in limnology and oceanography, including systematics and aquatic ecology. In addition to hypothesis-driven experimental research, it presents theoretical papers relevant to a broad hydrobiological audience, and collections of papers in special issues covering focused topics. History ''Hydrobiologia'' changed on the appointment of Henri Dumont to be its editor-in-chief. He introduced peer review, and expanded production from 6 issues per year to more than 20 per year. Koen Martens took over the responsibility as editor-in- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
