Neocrinus decorus

Last updated

Neocrinus decorus
Temporal range: 23.03–Recent  Ma
Neocrinus decorus.jpg
Specimens in situ
Neocrinus decorus (YPM IZ 070048).jpg
Museum specimen
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Suborder:
Family:
Subfamily:
Genus:
Species:
N. decorus
Binomial name
Neocrinus decorus
(Thomson, 1864)
Synonyms [1]
  • Chladocrinus decorusThomson, 1864
  • Pentacrinus decorusThomson, 1864

Neocrinus decorus is a species of stalked crinoid, or sea lily, in the family Isocrinidae. [1]

Contents

Distribution

The species lives on hard substrates (such as on lithoherm ridges) at depths of 420 to 1,219 metres (1,378 to 3,999 ft), throughout the Caribbean Sea. It has been found off the coast of Venezuela, Honduras, the Dominican Republic, the Lesser Antilles, and the Gulf of Mexico. [2] [3] [4] [5] [6]

Biology

Neocrinus decorus are epibenthic and may form aggregations in certain locales. [5] [2] Like other crinoids, they are suspension feeders, filtering out organic material and plankton that the current brings to their outstretched arms (the "filtration fan"). [7] [8] This species has been observed to crawl across the sea floor using its arms, "elbow-crawling" at speeds of about 36 metres per hour (120 ft/h). This locomotion is theorized to allow the sea lily to move to a location with more appropriate currents, or to evade slower predators such as cidaroid sea urchins. [9]

Related Research Articles

<span class="mw-page-title-main">Crinoid</span> Class of echinoderms

Crinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths over 9,000 metres (30,000 ft).

<span class="mw-page-title-main">Articulata (Crinoidea)</span> Subclass of crinoids

Articulata are a subclass or superorder within the class Crinoidea, including all living crinoid species. They are commonly known as sea lilies or feather stars. The Articulata are differentiated from the extinct subclasses by their lack of an anal plate in the adult stage and the presence of an entoneural system. Articulata first appeared in the fossil record during the Triassic period although other, now extinct crinoid groups, originated in the Ordovician.

<span class="mw-page-title-main">Crinozoa</span> Subphylum of marine invertebrates

Crinozoa is a subphylum of mostly sessile echinoderms, of which the crinoids, or sea lilies and feather stars, are the only extant members. Crinozoans have an extremely extensive fossil history, which may or may not extend into the Precambrian.

<span class="mw-page-title-main">Comasteridae</span> Family of crinoids

Comasteridae is a family of crinoids.

<span class="mw-page-title-main">Comatulida</span> Order of crinoids

Comatulida is an order of crinoids. Members of this order are known as feather stars and mostly do not have a stalk as adults. The oral surface with the mouth is facing upwards and is surrounded by five, often divided rays with feathery pinnules. Comatulids live on the seabed and on reefs in tropical and temperate waters.

<i>Davidaster rubiginosus</i> Species of crinoid

Davidaster rubiginosus, the orange sea lily, is a species of crinoid in the family Comatulidae. At one time it was classified as Nemaster rubiginosa but the World Register of Marine Species has determined that the valid name is Davidaster rubiginosus. It is found on reefs in the tropical western Atlantic and the Caribbean Sea.

<i>Metacrinus rotundus</i> Species of crinoid

Metacrinus rotundus, the Japanese sea lily, is a species of stalked crinoid in the family Isselicrinidae. It is a species found off the west coast of Japan, near the edge of the continental shelf at a depth of around 100 to 150 metres deep. This is the shallowest-living species among the extant stalked crinoids.

<span class="mw-page-title-main">Bourgueticrinida</span> Extinct order of crinoids

Bourgueticrinida is an order of crinoids that typically live deep in the ocean. Members of this order are attached to the seabed by a slender stalk and are known as sea lilies. While other groups of crinoids flourished during the Permian, bourgueticrinids along with other extant orders did not appear until the Triassic, following a mass extinction event in which nearly all crinoids died out.

<i>Cenocrinus</i> Genus of crinoids

Cenocrinus is a monotypic genus of stalked crinoids in the family Isselicrinidae. The great West Indian sea lily is the only species in the genus and is found in deep waters in the Caribbean Sea and Gulf of Mexico.

<i>Leptometra celtica</i> Species of crinoid

Leptometra celtica is a marine invertebrate and species of crinoid or feather star of the Leptometra genus in the family Antedonidae. It is found in the Atlantic Ocean around the coasts of north west Europe. The presence of L. celtica and L. phalangium is considered to be a good indication of nearby shelf breaks, general bottom currents, and areas of high gross productivity as they are suspension-feeders, hence their proliferation in productive environments.

Bathycrinus aldrichianus is a species of sea lily, a crinoid in the family Bathycrinidae. It is native to deep water in the North Atlantic Ocean. It was first described by the Scottish marine zoologist Charles Wyville Thomson and named in honour of Pelham Aldrich, a British naval officer and explorer. It is believed to be the crinoid living at the greatest depth.

<i>Bathycrinus australis</i> Species of sea lily

Bathycrinus australis is a species of sea lily, a crinoid in the family Bathycrinidae. It is native to deep water in the Antarctic Ocean. It was initially identified as Bathycrinus aldrichianus by Philip Herbert Carpenter following the 1872-1876 HMS Challenger expedition. It was later distinguished as a new species by the American zoologist Austin Hobart Clark.

Bathycrinus mendeleevi is a species of sea lily, a crinoid in the family Bathycrinidae. It is native to the Pacific Ocean west of South America. It was described by A. N. Mironov.

Discolocrinus thieli is a species of sea lily, a crinoid in the family Bathycrinidae. It is native to the eastern Pacific Ocean. It was described by A. N. Mironov. It is named in honor of deep sea ecologist Hjalmar Thiel.

<span class="mw-page-title-main">Comatulidae</span> Family of crinoids

Comatulidae is a family of comatulid crinoids. Since 2015, it replaces the family Comasteridae.

<i>Endoxocrinus parrae</i> Species of crinoid

Endoxocrinus parrae is a species of stalked crinoids of the family Isselicrinidae. It is the most commonly found isocrinine species in west Atlantic Ocean.

<i>Aporometra wilsoni</i> Species of crinoid

Aporometra wilsoni is a marine invertebrate, a species of crinoid or feather star in the family Aporometridae. It is found in shallow water around the coasts of southern Australia.

<i>Notocrinus virilis</i> Species of crinoid

Notocrinus virilis is a marine invertebrate, a species of crinoid or feather star in the family Notocrinidae. It is found in deep water in the Southern Ocean around the coasts of Antarctica and adjacent islands. A sea snail sometimes parasitizes it.

<i>Promachocrinus</i> Genus of crinoids

Promachocrinus is a genus of free-swimming, stemless crinoids. It was a monotypic genus, with the only species in the genus being Promachocrinus kerguelensis, until the discovery of four new species, establishment of two others previously described and the transfer of another species to the genus in 2023. Known for being coldwater crinoids, members of Promachocrinus are typically found in the seas around Antarctica and surrounding island groups, including under the sea ice. Previously known for having 20 arms, two of the species now included in the genus have 10 arms. Many of the species are circum-Antarctic and can be difficult to tell apart without DNA sequencing.

<i>Comatula solaris</i> Species of feather star

Comatula solaris is a species of feather star in the family Comatulidae and the type species of the genus Comatula.

References

  1. 1 2 "WoRMS - World Register of Marine Species - Neocrinus decorus (Thomson, 1864)". www.marinespecies.org. Retrieved 2019-04-13.
  2. 1 2 Messing, Charles G. "Dark Hilltop Gardens". NOAA Ocean Explorer. National Oceanic and Atmospheric Administration (NOAA). Retrieved 2 July 2024.
  3. "Fossilworks: Neocrinus decorus". fossilworks.org. Retrieved 17 December 2021.
  4. "Neocrinus decorus | GulfBase". www.gulfbase.org. Retrieved 2019-04-13.
  5. 1 2 "Neocrinus decorus (Thomson, 1864)". WoRMS. World Register of Marine Species. Retrieved 2 July 2024.
  6. "Neocrinus decorus". COPEPEDIA. National Oceanic and Atmospheric Administration (NOAA). Retrieved 2 July 2024.
  7. Kitazawa, Kota; Oji, Tatsuo; Sunamura, Michinari (28 June 2007). "Food composition of crinoids (Crinoidea: Echinodermata) in relation to stalk length and fan density: their paleoecological implications". Marine Biology. 152 (September 2007): 959–968. Retrieved 2 July 2024.
  8. Baumiller, Tomasz; Messing, Charles G. "Stalked crinoid locomotion, and its ecological and evolutionary implications". ResearchGate. Palaeontologia Electronica. Retrieved 2 July 2024.