Drupa (genus)
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| Röding , 1798 |
Drupa is the name of a genus of predatory , mostly medium-sized snails from the family of spiny snails , which includes three recognized species in the Indo-Pacific including the Red Sea .
features
The egg-shaped, solid casings of the Drupa species have a short thread, a short channel and a narrow, oval casing mouth with a wrinkled inner lip, while the outer lip has lichen-like teeth. The whorls are covered with tubercles or spines.
Like other spiny snails, the Drupa species are segregated with internal fertilization. Of the two species Drupa ricinus and Drupa morum , it is known that the egg capsules deposited after mating are extremely teleplane, large Veliger larvae that, due to their long-lived stage as plankton-eating zooplankton, contribute to the widespread distribution of the species in the Indo-Pacific and colonization of isolated archipelagos Contribute to the Eastern Pacific.
Distribution and occurrence
The snails of the genus Drupa live in the Indo-Pacific including the Red Sea in coral reefs on hard subsoil, especially in the intertidal zone.
Way of life
In terms of prey spectrum, the genus Drupa is considered to be the most diverse in the family of spiny snails, which goes beyond the prey animals typical of this family such as barnacles, snails and mussels. An examination of the intestinal contents of more than 1,400 individuals from seven Drupa TYPES - two of which, however today in Drupina are classified - and resulted in two subspecies, the species that Drupa grossularia ( Drupina grossularia ) and Drupa lobata ( Drupina lobata ) as food specialists from spray worms feed while Drupa morum and Drupa rubusidaeus especially polychaete family Eunicidae eat. Drupa ricinus and probably Drupa elegans eat a large number of different prey, including crabs , worm snails , beetles worm , polychaete worms and spray belong. The subspecies Drupa ricinus hadari living in the Red Sea has been shown to prey on small fish ( gobies ). Drupa clathrata clathrata eats contrast, barnacles , snails and mussels , which it resembles the whelks other genera most.
species
According to the World Register of Marine Species, the following nine species belong to the genus Drupa :
- Drupa albolabris (Blainville, 1832)
- Drupa aperta (Blainville, 1832)
- Drupa clathrata (Lamarck, 1816)
- Drupa denticulata Houart & Vilvens, 1997
- Drupa elegans (Broderip & GB Sowerby I, 1829)
- Drupa morum Röding, 1798
- Drupa ricinus (Linnaeus, 1758)
- Drupa rubusidaeus Röding, 1798
- Drupa speciosa (Dunker, 1867)
The two species Drupa grossularia and Drupa lobata mentioned above are now classified under the genus Drupina Dall , 1923.
History of the system
The generic name Drupa is mentioned for the first time in 1798 by Peter Friedrich Röding in the catalog of the Conchyliensammlung of Joachim Friedrich Bolten with 15 species. Of these, Drupa morum Röding, 1798 , was later established as the type species. For a long time this genus name was meaningless, because the snails were placed by Jean-Baptiste de Lamarck in 1822 in the genus with the older name Purpura Bruguière in 1789, which comprised over 50 species. It was not until the middle of the 20th century that the names of Röding - Drupa , Thais and Nucella - became important again.
Web links
Individual evidence
- ↑ Jessica Hope MacPherson, Charles J. Gabriel: Marine Molluscs of Victoria. Melbourne University Press, The National Museum of Victoria, Melbourne 1962. p. 176.
- ↑ Jane Bartlett Taylor (1975): Planktonic prosobranch veligers of Kaneohe Bay. Ph.D. Thesis, University of Hawaii, Honolulu. 593 pages.
- ↑ a b Martine Claremont, David G. Reid, Suzanne T. Williams (2012): Speciation and dietary specialization in Drupa, a genus of predatory marine snails (Gastropoda: Muricidae). Zoologica Scripta 41 (2), pp. 137-149.
- ↑ John D. Taylor (1983): The food of coral-reef Drupa (Gastropoda). Zoological Journal 78 (4). Pp. 299-316.
- ^ Drupa Röding, 1798 . World Register of Marine Species.
- ↑ Drupina Dall 1923 . World Register of Marine Species.
- ↑ Peter Friedrich Röding (1798): Museum Boltenianum, sive, Catalogus cimeliorum e tribus regnis naturae quae olim collegerat Joa. Fried. Bolten : pars secunda continens conchylia sive testacea univalvia, bivalvia et multivalvia . Trappi, Hamburg, viii. + 199 p. Reprinted by the British Museum , London 1906. Page 55f.
- ^ Henry Dodge (1957): Mollusks of Linnaeus. Bulletin of the American Museum of Natural History 113, p. 129.