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Asterina (starfish)
''Asterina'' is a genus of asteroideans in the family Asterinidae. The species occurring in Australian waters are considered to not be congeneric with the type species ''A. gibbosa'' ( Pennant, 1777) by Rowe and Gates (1995), and will possibly to assigned to another genus or a new genus. Rowe and Gates (1995) also suggested that ''Asterina'' should be restricted to Atlantic waters.Rowe, F. & Gates, J. (1995). Echinodermata. In Wells, A. (Ed.), ''Zoological Catalogue of Australia'', Volume 33. Melbourne: CSIRO Australia. Species *'' Asterina fimbriata'' Perrier, 1875Perrier, E. (1875). ''Revision de la Collection de Stellerides du Museum d'Histoire Naturelle de Paris''. Paris: C. Reinwald. *''Asterina gibbosa ''Asterina gibbosa'', commonly known as the starlet cushion star, is a species of starfish in the family Asterinidae. It is native to the northeastern Atlantic Ocean and the Mediterranean Sea. Description ''Asterina gibbosa'' is a pentagonal sta ...'' ( Pennant, 1777) Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giovanni Domenico Nardo
Giovanni Domenico Nardo (4 March 1802 – 7 April 1877) was an Italian naturalist from Venice, although he spent most of his life in Chioggia, home port of the biggest fishing flotilla of the Adriatic. He learned taxidermy and specimen preparation from his uncle, an abbot. He went in a high school in Udine and studied medicine in Padua, where he reorganized the zoological collections. In 1832 he reorganized the invertebrate collection at the Imperial Natural History Museum in Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ... and in 1840 he became Fellow of the Istituto Veneto di Scienze, Lettere ed Arti, an academy whose aim is "to increase, promulgate, and safeguard the sciences, literature and the arts". Nardo wrote hundreds of scientific publications ranging from med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asterina Pancerii
''Asterina pancerii'', commonly known as the seagrass asterina, is a species of starfish in the family Asterinidae. It is native to shallow parts of the Mediterranean Sea where it is usually found in seagrass meadows. Description ''Asterina pancerii'' is a very small starfish, seldom exceeding in diameter. It is pentagonal with five short, broad arms scarcely differentiated from the disc. The somewhat inflated aboral (upper) surface is covered by a mosaic of tiled plates each bearing a small tuft of three to eight regularly spaced crystalline spines. The marginal plates are fine, some bearing pedicellariae, and the tips of the arms have long, slender sensory tube feet and inconspicuous eyespots. The aboral surface is a radially symmetric star-shape of red, pink, purple and white plates; the oral (under) surface is a plain colour matching the main colour of the aboral surface. Distribution and habitat ''Asterina pancerii'' is endemic to the Mediterranean Sea. It is most common o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maureen Downey
Maureen Elizabeth Downey (May 1, 1921 – May 14, 2000) was an American zoologist who worked for three decades at the Smithsonian National Museum of Natural History. Known as "The Starfish Lady," she was an authority on sea stars and other echinoderms, co-founding the International Echinoderm Conference in 1972. Among her discoveries is ''Midgardia xandaros'', the world's largest starfish. Early life and education Maureen Downey was born in Washington, D.C., in 1921. She had an early fascination with animal biology, bringing insect specimens to be identified at the National Museum of Natural History. She studied at George Washington University, then Duke University and the University of Washington's Friday Harbor Laboratories. Career Downey was an international authority on echinoderms, particularly sea stars, earning her the nickname "The Starfish Lady." While she occasionally studied other groups, such as brittle stars, her work primarily focused on sea stars. Her work w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ailsa McGown Clark
Ailsa McGown Clark (1926-2014) was a British zoologist, who principally studied echinoderms (such as starfishes and sea urchins) and was a specialist on asteroidea. She worked at the Natural History Museum for most of her career. Life Ailsa McGown Clark was born in Hendon. From 1948, Clark was curator of Echinoderms at the British Museum (Natural History). During 1954, she conducted research into ophiurums (brittle stars) at the Allan Hancock Foundation for Scientific Research, at the University of Southern California. It is noted that Ailsa McGown Clark was one of a number of unrelated Clarks who became experts in echinoderms. Libbie Hyman made reference to this 'odd circumstance' in a review of ''Starfishes and their relations'' for the ''Quarterly Review of Biology''. She said of the book itself that it would 'serve admirably to introduce beginners to this important phylum.' On the death of her colleague, Dr. Austin Hobart Clark, she completed his work ''A monograph of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asterina Stellifera
''Asterina stellifera'' is one of thirty species of small bat star in the genus '' Asterina''. It is mainly found on the east coast of South America, ranging from Cabo Frio, Brazil to Mar del Plata, Argentina. In the past decades, their numbers have depleted and are currently abundant only in the southern limit of its former range. Due to this decline, it is on Brazil’s endangered species list. It has a slow growth rate and relatively long lifespan. ''A. stellifera'' is an omnivorous generalist predator, and modifies the abundance of other invertebrates and algae in subtidal marine communities. Anatomy This type of sea star grows five arms and can reach up to in length, though most stay around . The size is found to vary with depth, larger sea stars are found deeper while smaller ones are usually found in shallow waters. The can be found in a variety of colors, mainly white and brownish, but also can be an orange-red color. All sea stars have tube feet that are controlled b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asterina Phylactica
''Asterina phylactica'' is a species of sea star. It can be found in geographically widespread sites around the British Isles and in the Mediterranean Sea. It has five arms, is about 1.5 cm across and is of a green colour with central brown markings. The species was formally described in 1979 and is very similar to '' Asterina gibbosa''. Description ''Asterina phylactica'' is a pentagonal starfish with short blunt arms and a flattened shape. It grows to a diameter of about and is olive-green with a central brown star-shaped marking, a pale underside, and a clear cut edge between the upper and lower surfaces. It can be distinguished from the closely related ''Asterina gibbosa'' by the fact that it has fewer plates surrounding its mouth, its smaller size and its characteristic colouring. At one time the two were believed to be the same species but it was realised in 1979 that besides the differences in appearance, the two occupied different ecological niches and had different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
