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Calcinus Verrillii
''Calcinus verrillii'', commonly known as Verrill's hermit crab, is a species of hermit crab in the genus ''Calcinus'' which is endemic to Bermuda. It was first described by the American zoologist Mary J. Rathbun and named in honour of the American zoologist Addison Emery Verrill, who spent much time with his students studying the geology and marine fauna of Bermuda. Although this hermit crab species generally inhabits the discarded shell of a free-living gastropod mollusc, it sometimes makes use of the empty, tube-like shells of certain gastropod mollusc species while the tube is permanently cemented to rocks in the reef. Description Like other crabs in the genus ''Calcinus'', ''C. verrillii'' has a robust, calcified carapace, eight thoracic segments and six or seven abdominal segments. The carapace and legs are spotted with purple and orange, the eyes have slender eyestalks and the front three pairs of walking legs are smooth and hairless. The soft abdomen is coiled and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary J
Mary may refer to: People * Mary (name), a feminine given name (includes a list of people with the name) Religious contexts * New Testament people named Mary, overview article linking to many of those below * Mary, mother of Jesus, also called the Blessed Virgin Mary * Mary Magdalene, devoted follower of Jesus * Mary of Bethany, follower of Jesus, considered by Western medieval tradition to be the same person as Mary Magdalene * Mary, mother of James * Mary of Clopas, follower of Jesus * Mary, mother of John Mark * Mary of Egypt, patron saint of penitents * Mary of Rome, a New Testament woman * Mary, mother of Zechariah and sister of Moses and Aaron; mostly known by the Hebrew name: Miriam * Mary the Jewess one of the reputed founders of alchemy, referred to by Zosimus. * Mary 2.0, Roman Catholic women's movement * Maryam (surah) "Mary", 19th surah (chapter) of the Qur'an Royalty * Mary, Countess of Blois (1200–1241), daughter of Walter of Avesnes and Margaret of Blois * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tide Pool
A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore. Many of these pools exist as separate bodies of water only at low tide. Many tide pool habitats are home to especially adaptable animals that have engaged the attention of naturalists and marine biologists, as well as philosophical essayists: John Steinbeck wrote in ''The Log from the Sea of Cortez'', "It is advisable to look from the tide pool to the stars and then back to the tide pool." Zones from shallow to deep The rocky shoreline exhibits zonation as a feature of the shoreline. Tidal movements of water creates zonation patterns along rocky shores from high to low-tide. The area above the high-tide mark is the supralittoral zone which is virtually a terrestrial environment. The area around the high-tide mark is known as the intertidal fringe. Between the high and low-tide marks is the intertidal or littoral zone. Below the low-tide mark is the sublittoral or subtida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filter Feeder
Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure. Some animals that use this method of feeding are clams, krill, sponges, baleen whales, and many fish (including some sharks). Some birds, such as flamingos and certain species of duck, are also filter feeders. Filter feeders can play an important role in clarifying water, and are therefore considered ecosystem engineers. They are also important in bioaccumulation and, as a result, as indicator organisms. Fish Most forage fish are filter feeders. For example, the Atlantic menhaden, a type of herring, lives on plankton caught in midwater. Adult menhaden can filter up to four gallons of water a minute and play an important role in clarifying ocean water. They are also a natural check to the deadly red tide. Extensive article on the role of menhaden in the ecosystem and possible resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scavenger
Scavengers are animals that consume dead organisms that have died from causes other than predation or have been killed by other predators. While scavenging generally refers to carnivores feeding on carrion, it is also a herbivorous feeding behavior. Scavengers play an important role in the ecosystem by consuming dead animal and plant material. ''Decomposers'' and detritivores complete this process, by consuming the remains left by scavengers. Scavengers aid in overcoming fluctuations of food resources in the environment. The process and rate of scavenging is affected by both biotic and abiotic factors, such as carcass size, habitat, temperature, and seasons. Etymology Scavenger is an alteration of ''scavager,'' from Middle English ''skawager'' meaning "customs collector", from ''skawage'' meaning "customs", from Old North French ''escauwage'' meaning "inspection", from ''schauwer'' meaning "to inspect", of Germanic origin; akin to Old English ''scēawian'' and German ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermicularia Spirata
''Vermicularia spirata'', common name the West Indian worm-shell or the West Indian wormsnail, is a species of sea snail, a marine gastropod mollusc in the family Turritellidae. Juveniles can move around, but larger individuals become sessile. Distribution ''Vermicularia spirata'' occurs in shallow water in the northwestern Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico. Its range includes Mexico, Cuba, Jamaica, the Cayman Islands, the Lesser Antilles and Puerto Rico. Description The maximum recorded shell length is 90 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLOS One'' 5(1): e8776. . Habitat The minimum recorded depth for this species is 3 m; the maximum recorded depth is 80 m. Biology ''Vermicularia spirata'' is a filter feeder and is a protandrous hermaphrodite; individuals start their adult life as males, at which stage they are free-living, but later become females and attach themselves to various s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermicularia Knorrii
''Vermicularia knorrii'', commonly known as the Florida worm snail, is a species of sea snail, a marine gastropod in the family Turritellidae. ''V. knorrii'' has been concluded to be the junior synonym to ''Vermicularia lumbricalis''. The shell of Florida worm snail is light brown or tan in color with an apex that is white. It is found living in reefs on the coasts of the southern states of the United States to the top of South America. ''V. knorri'' use their ciliated appendages to trap plankton and sperm. Distribution This species is found in the United States from Florida to North Carolina, the Gulf Coast, the eastern coast of Mexico, Aruba, The Bahamas, Antigua, Barbuda, Cuba, Jamaica, Puerto Rico, and Bermuda''. Vermicularia knorrii'' is strictly marine and does not live in brackish or fresh waters and is not terrestrial. ''V. knorrii'' is found in waters with temperatures around . Habitat ''Vermicularia knorrii'' habitat ranges from 35.34°N to 12°N and 92°W to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
