Look Alikes
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İngilizce
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Invertebrates of the Salish Sea tarafından sağlandı
How to Distinguish from Similar Species: D. albopunctatus has a large, wide oral veil and yellowish white spots. Other Dendronotus, such as D. diversicolor, have no row of bushy projections along the posterior border of the rhinophore stalk.
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Habitat
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İngilizce
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Invertebrates of the Salish Sea tarafından sağlandı
Mostly benthic on soft bottoms.
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Distribution
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İngilizce
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Invertebrates of the Salish Sea tarafından sağlandı
Geographical Range: Unalaska Island, Aleutian Islands to Los Coronados Island, Baja California.
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Habitat
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İngilizce
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Invertebrates of the Salish Sea tarafından sağlandı
Depth Range: Mostly subtidal, down to 200 m. Sometimes seen on the surface over deep water, or in eelgrass flats.
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Comprehensive Description
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İngilizce
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Invertebrates of the Salish Sea tarafından sağlandı
As a Dendronotacean, this species has its anus on the right side, dorsal cerata besides the rhinophores, and the clavus of the rhinophores is fully retractable into a sheath. D. iris has two longitudinal dorsal rows of very bushy cerata which have brick-red, yellow, purple, orange, or white tips. The gut projects into only the most anterior pair of cerata. The rhinophores are very large and somewhat similar in shape to the cerata, and the clavus extends from an anterior shelf on them--not obvious at first. The sheath of the clavus is drawn out into several branched papillae that make it look crownlike. The large rhinophore stalk has 3-6 bushy projections along its posterior border. The species has a small oral veil with 4 pairs of oral papillae. It has a white line around the edge of the foot, but has few or no white dorsal spots. Can get up to 30 cm long, averages 6-10 cm, and is one of the largest nudibranch is America. Color is variable, often a shade of salmon-red or light purple but may be gray or pale as in this individual.
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Comprehensive Description
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İngilizce
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Invertebrates of the Salish Sea tarafından sağlandı
Biology/Natural History: This species feeds on the tubedwelling anemone Pachycerianthus fimbriatus, and on Nemertean worms. Besides its radula, it has large jaws for clipping tentacles off the anemone, and leaves the anemone looking as if it has had a bad haircut. The nudibranchs are sometimes pulled into the tube when the anemone retracts, but do not seem to be harmed by this. Predators include Pycnopodia helianthoides. This nudibranch is very active and can readily swim by gyrating the body. Eggs are laid in white strings, often on the tubes of their prey. The heart of this individual was large, and the heartbeat was easily seen through the dorsal surface. According to Baltzley et al.,, many gastropods, including this species, have a special network of pedal ganglia in their foot which assists in crawling. The two main neurons involved produce pedal peptides which elicit an increase in the rate of beating of cilia on the foot, resulting in crawling.
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Dendronotus iris
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İngilizce
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wikipedia EN tarafından sağlandı
Dendronotus iris, also known as the rainbow nudibranch, is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae.[2][3]
Distribution
This species was described from Santa Barbara, California.[1] It can be found along the west coast of North America from Unalaska Island, Alaska to Cabo San Lucas, Baja California.[4][5]
Description
Dendronotus iris (juvenile) from Pillar Point, California
Dendronotus iris can grow to about 30 cm but is usually about 10 cm. The colour of this species is highly variable. It can range from translucent white or gray, to orange or red. It can also have white spots or scattered brownish patches. Distinctive features include the stalk of the rhinophore sheath having a vertical row of three to six small branched processes on its posterior side, and the foot being edged in white, although this may be partially absent in some specimens. The oral veil has four paired processes. The branching gills may be tipped with white, orange, yellow, or purple.[6]
Diet
This species feeds on the burrowing anemone Pachycerianthus fimbriatus.[7]
References
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^ a b Cooper J. G. (1863) On new or rare Mollusca inhabiting the coast of California. No. II. Proceedings of the California Academy of Natural Sciences 3: 56-60.
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^ Rosenberg, G.; Bouchet, P. (2015). Dendronotus iris. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-01-27.
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^ Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. ISBN 3-925919-72-4. ISSN 0076-2997. 397 pp.
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^ Rudman, W.B. (2000). Dendronotus iris (Cooper, 1863). [In] Sea Slug Forum. Australian Museum, Sydney.
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^ Behrens, D. W., & Hermosillo, A. (2005) Eastern Pacific nudibranchs, a guide to the opisthobranchs from Alaska to Central America. vi + 137 pp., 314 photos. Sea Challengers, Monterey, California, page 94.
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^ Robilliard G. A. (1970) The systematics and some aspects of the ecology of the genus Dendronotus. The Veliger 12(4): 433-479, pages 446-450.
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^ Wobber Don R. (1970) A report on the feeding of Dendronotus iris on the anthozoan Cerianthus sp. from Monterey Bay, California. The Veliger 12(4): 383-387, plates 55-57.
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Dendronotus iris: Brief Summary
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İngilizce
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wikipedia EN tarafından sağlandı
Dendronotus iris, also known as the rainbow nudibranch, is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae.
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Dendronotus iris
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İtalyanca
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wikipedia IT tarafından sağlandı
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Dendronotus iris: Brief Summary
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İtalyanca
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wikipedia IT tarafından sağlandı
Dendronotus iris J.G. Cooper, 1863 è un mollusco nudibranchio della famiglia Dendronotidae.
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Dendronotus iris
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Felemenkçe; Flemish
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wikipedia NL tarafından sağlandı
Dendronotus iris is een slakkensoort uit de familie van de Dendronotidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1863 door J. G. Cooper.
Bronnen, noten en/of referenties Geplaatst op:
09-03-2013
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen.
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