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Penion
''Penion'' is a genus of large marine snails, commonly known as siphon whelks, classified within the mollusc family Austrosiphonidae, the true whelks.MolluscaBase eds. (2021). MolluscaBase. Penion P. Fischer, 1884. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=488452 on 2021-12-24 Description Siphon whelks are large, benthic marine snails, or whelks. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 Willan, R.C., de C. Cook, S., Spencer, H.G., Creese, R.G., O’Shea, S., Jackson, G.D. Phylum Mollusca. In: de C. Cook, S.C. (eds.), ''New Zealand Coastal Marine Invertebrates 1'', 406 – 407. Canterbury University Press, Christchurch, New Zealand ''Penion'' are commonly called siphon whelks because they have a very long siphon. Species typically have a large, pointed operculum. Ponder, W.F. 1973. A review of the Australian species of ''Penion'' Fischer (Neoga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penion Sulcatus Eggs1
''Penion'' is a genus of large marine snails, commonly known as siphon whelks, classified within the mollusc family Austrosiphonidae, the true whelks.MolluscaBase eds. (2021). MolluscaBase. Penion P. Fischer, 1884. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=488452 on 2021-12-24 Description Siphon whelks are large, benthic marine snails, or whelks. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 Willan, R.C., de C. Cook, S., Spencer, H.G., Creese, R.G., O’Shea, S., Jackson, G.D. Phylum Mollusca. In: de C. Cook, S.C. (eds.), ''New Zealand Coastal Marine Invertebrates 1'', 406 – 407. Canterbury University Press, Christchurch, New Zealand ''Penion'' are commonly called siphon whelks because they have a very long siphon. Species typically have a large, pointed operculum. Ponder, W.F. 1973. A review of the Australian species of ''Penion'' Fischer (Neogastropo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penion Sulcatus
''Penion sulcatus'' is a species of medium-to-large predatory marine snail or whelk, commonly called the northern siphon whelk or kākara nui in Māori, belonging to the true whelk family Buccinidae. Description ''Penion sulcatus'' is a medium-to-large species of ''Penion'' siphon whelk. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 Shells are highly variable in sculpture and colouration, but shells are often dark with a white aperture.Willan, R.C., de C. Cook, S., Spencer, H.G., Creese, R.G., O’Shea, S., Jackson, G.D. Phylum Mollusca. In: de C. Cook, S.C. (eds.), ''New Zealand Coastal Marine Invertebrates 1'', 406 – 407. Canterbury University Press, Christchurch, New Zealand The extinct species '' Penion exoptatus'', '' Penion clifdenensis'', and potentially also '' Penion marwicki'', may belong to the same evolutionary lineage as the extant species ''Penion sulcatus''. This hypothesis is based on geometric morphom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penion Ormesi
''Penion ormesi'' is a species of very large predatory sea snail or whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks. Description ''Penion ormesi'' is a large to very large species of siphon whelk. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 ''P. ormesi'' is benthic, and typically inhabits soft-sediments on the continental shelf. Dell, R.K. 1962. New Zealand Marine Provinces - do they exist? Tuatara, 10: 43 - 52Online Copy courtesy of New Zealand Electronic Text Collection/ref> Recent genetic and geometric morphometric research using shell shape and size has demonstrated that a formerly recognised species ''Penion cuvierianus jeakingsi'' is closely related to ''Penion ormesi'', and the taxon has been synonymised. However, further genetic and morphological variation observed among these snails suggests that there may be further diversity within this lineage. Distribution The species is ende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penion Chathamensis
''Penion chathamensis'' is a species of very large predatory sea snail or whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks. Description ''Penion chathamensis'' is a very large species of ''Penion'' siphon whelk. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 Although ''P. chathamensis'' has separate sexes, the species does not appear to exhibit secondary sexual dimorphism in shell shape or size. A separate species, ''Penion fairfieldae'' was formerly recognised, but recent genetic data has demonstrated that the species is indistinguishable from ''Penion chathamensis''. Shells originally recognised as ''P. fairfieldae'' can be distinguished from ''P. chathamensis'' using shell size, but not using shell shape. Distribution ''Penion chathamensis'' is endemic to New Zealand. The species is distributed off of the west coast of the South Island, and occurs on Chatham Rise and in waters surrounding t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penion Maximus (Tryon, 1881)
''Penion maximus'' is a species of very large predatory sea snail or whelk, commonly known as giant whelk or great whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks. Their shells are highly coveted due to the intricate designs embedded in onto the shells. Description ''Penion maximus'' is the largest species of ''Penion'' siphon whelk, and is endemic to Australia. The species could be confused with the sympatric species '' P. mandarinus'', however ''P. mandarinus'' is typically smaller and has a smoother shell with a shorter siphonal canal. Distribution The range of the species extends from waters off Tasmania and Victoria to lower Queensland. Evolution ''Penion maximus'' is closely related to another Australian species '' P. mandarinus''. The species have overlapping geographic ranges (sympatry) and may have evolved from a common ancestor via niche differentiation In ecology, niche differentiation (also known as niche segregation, niche separation a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austrosiphonidae
The Austrosiphonidae are a taxonomic family of large sea snails, often known as whelks.MolluscaBase eds. (2021). MolluscaBase. Austrosiphonidae Cotton & Godfrey, 1938. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1522370 on 2021-12-24 Genera * '' Antarctoneptunea'' Dell, 1972 * '' Kelletia'' P. Fischer, 1884 * ''Penion ''Penion'' is a genus of large marine (ocean), marine snails, commonly known as siphon whelks, classified within the mollusc family (biology), family Austrosiphonidae, the true whelks.MolluscaBase eds. (2021). MolluscaBase. Penion P. Fischer, 188 ...'' P. Fischer, 1884 * '' Serratifusus'' Darragh, 1969 ;Synonyms: * ''Austrosipho'' Cossmann, 1906: synonym of ''Penion'' P. Fischer, 1884 * ''Berylsma'' Iredale, 1924: synonym of ''Penion'' P. Fischer, 1884 * ''Largisipho'' Iredale, 1929: synonym of ''Penion'' P. Fischer, 1884 * ''Verconella'' Iredale, 1914: synonym of ''Penion'' P. Fischer, 1884 (unn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctoneptunea
''Antarctoneptunea'' is a genus of sea snails, marine gastropod mollusks in the family Austrosiphonidae, the true whelks. Distribution ''Antarctoneptunea'' marine snails occur in deep water surrounding New Zealand and in Southern Ocean encircling Antarctica, particularly in the Ross Sea. Dell R.K., Antarctic Mollusca with special reference to the fauna of the Ross Sea, The Royal Society of New Zealand Bulletin 27. Evolution Molecular phylogenetic trees based on mitochondrial genomic and nuclear ribosomal DNA sequence data indicate that ''Antarctoneptunea'' is closely related to the Northern Hemisphere genus ''Kelletia'', and ''Penion ''Penion'' is a genus of large marine (ocean), marine snails, commonly known as siphon whelks, classified within the mollusc family (biology), family Austrosiphonidae, the true whelks.MolluscaBase eds. (2021). MolluscaBase. Penion P. Fischer, 188 ...'' siphon whelks found in waters surrounding New Zealand and Australia. It has been suggested t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeneator (gastropod)
''Aeneator'' is a genus of sea snails, marine gastropod molluscs in the family Buccinidae, the true whelks. Description ''Aeneator'' is a genus of small to medium sized marine snails. Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 Large shells and fossils of ''Aeneator'' can sometimes be confused with those of ''Penion''. Distribution Most extant species of ''Aeneator'' are found around New Zealand, Chile, and Antarctica. Stilwell, J.D., Zinsmeister, W.J. 1992. Molluscan systematics and biostratigraphy, lower Tertiary La Meseta Formation, Seymour Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whelks
Whelk (also known as scungilli) is a common name applied to various kinds of sea snail. Although a number of whelks are relatively large and are in the family Buccinidae (the true whelks), the word ''whelk'' is also applied to some other marine gastropod species within several families of sea snails that are not very closely related. Many have historically been used, or are still used, by humans and other animals as food. In a reference serving of whelk, there are of food energy, 24 g of protein, 0.34 g of fat, and 8 g of carbohydrates. Dogwinkles, a predatory species, were used in antiquity to make a rich red dye that improves in color as it ages. True whelks are carnivorous, and feed on annelids, crustaceans, mussels and other molluscs, drilling holes through shells to gain access to the soft tissues. Whelks use chemoreceptors to locate their prey. Usage The common name "whelk" is also spelled ''welk'' or even ''wilk''. The species, genera and familie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Dell
Richard Kenneth Dell (11 July 1920 – 6 March 2002) was a New Zealand malacologist. Biography Dell was born in Auckland in 1920. As a young boy, he took an interest in shells, collecting them from the shores of Waitematā Harbour. He even managed to start a "museum" in his backyard. He also helped curate the Auckland War Memorial Museum shell collection. Dell studied at Mount Albert Grammar School and later at the Auckland University College. He took a teacher’s course at Auckland Teachers' College, but World War II delayed his plans to become a teacher. He joined the New Zealand Artillery, serving on Nissan Island, the Solomon Islands, Southwest Asia, Egypt, and Italy. He later published several papers on the land snails he had collected in the Solomon Islands. In 1946, he married botanist and schoolteacher Miriam Matthews, and they had four daughters together. His wife continued working after their marriage and became a well-known women's advocate. After the war, D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dosina Zelandica Zelandica
''Dosina mactracea'' is a species of marine bivalve mollusc in the family Veneridae The Veneridae or venerids, common name: Venus clams, are a very large family of minute to large, saltwater clams, marine bivalve molluscs. Over 500 living species of venerid bivalves are known, most of which are edible, and many of which are e .... References Veneridae {{Improve categories, date=February 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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