dcsimg

Distribution

provided by Echinoderms of Panama

In Panama this species has been collected in the Caribbean Sea from:

-Toro Point, Fort Sherman, Limon Bay (USNM E 25513)

-Shimmey Beach, Fort Sherman, Limon Bay (USNM E 26461; Centroid Latitude: 9.37, Centroid Longitude:-79.93)

-Margarita Island, Fort Randolph, Limon Bay (USNM E 24087)

-Galeta Island (USNM E 26390)

-Portobelo (USNM E 25542)

-southwest of Buenaventura Cove, Portobelo (USNM E 27018; Centroid Latitude: 9.5278, Centroid Longitude: -79.6875)

-Miria Island, Sab Blas (USNM E 24085)

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References and links

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Say, T. (1825). On the species of the Linnaean genus Asterias inhabiting the coast of the U.S. Journal of the Academy of natural sciences of Philadelphia, 5, 141-154.

World Ophiuroidea Database

LSID urn:lsid:marinespecies.org:taxname:244162
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Synonymised taxa

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Ophiothrix angulata

provided by wikipedia EN

Ophiothrix angulata, the angular brittle star, is a species of marine invertebrate in the order Ophiurida. It is found in the warm waters of the western Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico.[2]

Description

Like other brittle stars, O. angulata has a central disc and five slender, unbranched, jointed arms; the spines on the arms are twice as long as the arms are wide. It is somewhat variable in appearance and difficult to distinguish from other species of brittle star occurring in the same localities. The colour also varies, but populations in Florida are often reddish-orange, with a longitudinal white line along the upper surface of the arms. This brittle star grows to a disc diameter of about 10 mm (0.4 in).[3]

Distribution and habitat

O. angulata occurs in the western Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico. Its range extends from North Carolina southwards to Brazil and its depth range from subtidal to 200 m (660 ft). Its typical habitat is on reef rubble, where it lives among bivalve molluscs, sponges and algae. Young individuals are found particularly in association with the calcified green alga Halimeda.[3]

Biology

 src=
Ophiothrix angulata (Fig. 1-3) in Iconographia Zoologica, a 19th-century collection of zoological images.

O. angulata is a filter feeder and detritivore, spreading its arms widely to intercept phytoplankton and detritus drifting past. The particles are trapped by strands of mucus which dangle from the arms, and passed to the mouth by the tube feet. If an arm is damaged or lost by predation, it can be regenerated.[3]

The reproduction of this species has been little studied, but it is thought that breeding takes place by releasing gametes into the sea in response to variations in environmental cues such as changes in temperature. This brittle star forms large aggregations before spawning takes place.[3]

After settling, juveniles of this species are able to become planktonic again, enabling them to disperse more widely and finally settle in a more suitable location.[4]

References

  1. ^ Say, Thomas (1825). "On the species of the Linnaean genus Asterias inhabiting the coast of the U.S." Journal of the Academy of Natural Sciences of Philadelphia. 5: 141–154, 145.
  2. ^ a b Stöhr, Sabine (2011). "Ophiothrix (Ophiothrix) angulata (Say, 1825)". WoRMS. World Register of Marine Species. Retrieved 21 July 2017.
  3. ^ a b c d Puglisi, Melany P. "Ophiothrix angulata Say, 1825". Indian River Lagoon Species Inventory. Smithsonian Marine Station at Fort Pierce. Retrieved 21 July 2017.
  4. ^ Byrne, Marie; O'Hara, Tim (2017). Australian Echinoderms: Biology, Ecology and Evolution. Csiro Publishing. p. 348. ISBN 978-1-4863-0763-0.
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Ophiothrix angulata: Brief Summary

provided by wikipedia EN

Ophiothrix angulata, the angular brittle star, is a species of marine invertebrate in the order Ophiurida. It is found in the warm waters of the western Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico.

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Habitat

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Known from seamounts and knolls
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Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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Description

provided by Zookeys
Disk circular (dd = 0.63 to 4.79 mm). Covered by small, hyaline bifid or trifid spines, also on the radial shields (Fig. 2f). Radial shields longer than wide, separated by a row of scales (Fig. 2f). Ventral interradius covered by spines similar to dorsal (Fig. 2g). Bursal slits short and wide. Oral shields enlarged laterally, triangular, with distal margin (Fig. 2h). Adoral shields united proximally. No oral papillae, but jaws bear terminal clump of dental papillae (Fig. 2h). Dorsal arm plate fan-shaped (Fig. 2i). Ventral arm plate slightly longer than wide, hexagonal, with distal margin long and slightly concave (Fig. 2j). Nine long arm spines, vitreous and denticulate, the one but last smallest and the last modified into a hook. Single tentacle scale small.
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Anne I. Gondim, Carmen Alonso, Thelma L. P. Dias, Cynthia L. C. Manso, Martin L. Christoffersen
bibliographic citation
Gondim A, Alonso C, Dias T, Manso C, Christoffersen M (2013) A taxonomic guide to the brittle-stars (Echinodermata, Ophiuroidea) from the State of Paraíba continental shelf, Northeastern Brazil ZooKeys 307: 45–96
author
Anne I. Gondim
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Carmen Alonso
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Thelma L. P. Dias
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Cynthia L. C. Manso
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Martin L. Christoffersen
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Distribution

provided by Zookeys
Bermuda, North Carolina to Texas coast and offshore reefs, Dry Tortugas, the Bahamas, the Antilles, Mexican Caribbean, Honduras, Belize, Panama, islands off Caribbean, Colombia, Venezuela, Brazil, Uruguay, and off La Plata river, Argentina (Tommasi 1970, Devaney 1974, Hendler et al. 1995, Chavarro et al. 2004, Durán-Gonzáles et al. 2005, Laguarda-Figueras et al. 2005, Alvarado et al. 2008, Borrero-Pérez et al. 2008, Hernandéz-Herrejón et al. 2008, Martínez 2008). In Brazil from Amapá (Albuquerque 1986), Piauí (Gondim and Giacometti 2010), Paraíba (Rathbun 1879), Pernambuco (Tommasi 1970), Alagoas (Miranda et al. 2012), Bahia (Alves and Cerqueira 2000), Abrolhos off southern Bahia, Trindade oceanic island off Espírito Santo (Tommasi 1970), Rio de Janeiro (Rathbun 1879), São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul (Tommasi 1970). Intertidal to 540 m depth. Sampled between 10 and 34 m depth in this study.
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Anne I. Gondim, Carmen Alonso, Thelma L. P. Dias, Cynthia L. C. Manso, Martin L. Christoffersen
bibliographic citation
Gondim A, Alonso C, Dias T, Manso C, Christoffersen M (2013) A taxonomic guide to the brittle-stars (Echinodermata, Ophiuroidea) from the State of Paraíba continental shelf, Northeastern Brazil ZooKeys 307: 45–96
author
Anne I. Gondim
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Carmen Alonso
author
Thelma L. P. Dias
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Cynthia L. C. Manso
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Martin L. Christoffersen
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