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Type: Article
Published: 2026-07-06
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New species and occurrences of deep-sea Asteroidea (Forcipulatacea, Valvatida, Paxillosida) from the Pacific continental margin of Costa Rica

Department of Invertebrate Zoology; National Museum of Natural History; Smithsonian Institution; Washington DC; USA
Echinodermata Deep-sea corallivory Goniasteridae radiasteridae Solasteridae Pterasteridae in situ observations

Abstract

Deep-sea settings in the Eastern Tropical Pacific remain a poorly understood region with many further species awaiting discovery. Herein, four new species from Costa Rica are described from deep-sea habitats. New occurrences with in situ or living observations are made for eight species. New observations of hippasterine corallivory on deep-sea octocorals are included. A brief summary of Costa Rican species is presented.

References

  1. Acloque, A. (1900) Faune de France contenant la description de toutes les éspèces indigènes- avec un prèface par E. Perrier (1899). Baillière, Paris, 500 pp.
  2. Alton, M. (1966) Bathymetric distribution of sea stars (Asteroidea) off the Northern Oregon coast. Journal of the Fisheries Research Board of Canada, 23 (11), 1673–1714. https://doi.org/10.1139/f66-158
  3. Alvarado, J.J. (2010) Isla del Coco (Costa Rica) Echinoderms: State of knowledge. In: Harris, L.G., Boetger, S.A., Walker, C.W. & Lesser, M.P. (Eds.), Echinoderms: Durham: Proceedings of the 12th International Echinoderm Conference, 7–11 Aug 2006. CRC Press, pp. 103–113.
  4. Alvarado, J.J. (2011) Echinoderm diversity in the Caribbean Sea. Marine Biodiversity, 41, 261–285. https://doi.org/10.1007/s12526-010-0053-0
  5. Alvarado, J.J., Chacon-Monge, J.L., Azofeifa-Solano, J.C. & Cortés, J. (2022) Diversity of Deep-Sea Echinoderms from Costa Rica. Frontiers in Marine Science, 9, 918878. https://doi.org/10.3389/fmars.2022.918878
  6. Aziz, A. & Jangoux, M. (1985) Four new species and one new subspecies of Asteroidea (Echinodermata) collected by the Siboga Expedition in the Indo-Malayan Region. Bijdragen tot de Dierkunde, 55 (2), 263–274. https://doi.org/10.1163/26660644-05502005
  7. Bernasconi, I. (1963) Asteroideos argentinos. 4. Familia Goniasteridae. Revista Museo Argentino de Ciencias Naturales Bernardino Rivadavia. Zoologia, 9 (1), 1–25, pls. 1–5.
  8. Bernasconi, I. (1964) Asteroideos argentinos. Claves para los órdenes, familias, subfamilies y géneros. Physis Buenos Aires, 24, 241–277.
  9. Blake, D.B. (1987) Classification and phylogeny of post-Paleozoic sea stars (Asteroidea: Echinodermata). Journal of Natural History, 21, 481–528. https://doi.org/10.1080/00222938700771141
  10. Cambronero-Solano, S., Benavides, R., Solis-Marin, F.A. & Alvarado, J.J. (2019) New reports of echinoderms on the Caribbean continental slope of central America. Zoosymposia, 15, 5–12. https://doi.org/10.11646/Zoosymposia.15.1.3
  11. Chacón-Monge, J-L., Azofeifa-Solano, J-C., Alvarado, J-J. & Cortés, J. (2021) Área de conservación Guanacaste Echinoderms, North Pacific of Costa Rica. Revista de Biologia Tropical, 69, suppl. 1. http://dx.doi.org/10.15517/rbt.v69isuppl.1.46391
  12. Clark, A.M. (1993) An index of names of recent Asteroidea – Part 2: Valvatida. Echinoderm Studies, 4, 187–366.
  13. Clark, A.M. (1997) An index of names of recent Asteroidea – Part 3: Velatida and Spinulosida. Echinoderm Studies, 5, 183–250.
  14. Clark, A.M. (1993) An index of names of recent Asteroidea – Part 2: Valvatida. Echinoderm Studies, 4, 187–366.
  15. Clark, A.M. (1997) An index of names of recent Asteroidea – Part 3: Velatida and Spinulosida. Echinoderm Studies, 5, 183–250.
  16. Clark, A.M. & Downey, M.E. (1992) Starfishes of the Atlantic. Chapman and Hall, London, 794 pp.
  17. Clark, A.M. & Courtman-Stock, J. (1976) The Echinoderms of Southern Africa. British Museum of Natural History, London, 277 pp.
  18. Clark, H.L. (1916) Report on the sea-lilies, starfishes, brittle-stars and sea-urchins obtained by the F.I.S. Endeavour on the coasts of Queensland, New South Wales, Tasmania, Victoria, South Australia, and Western Australia. Biological Results of the Fishing experiments carried on by the F.I.S. Endeavour 1909–1914, 4 (1), 1–123. https://doi.org/10.5962/bhl.title.13854
  19. Clark, H.L. (1920) Reports on the scientific results of the expedition to the Eastern Tropical Pacific, in charge of Alexander Agassiz, by the US Fish commission Steamer Albatross, from October 1905 to March 1905, Lt. Cmdr. L.M. Garrett, USN, Commanding. XXXII. Asteroidea. Memoirs of the Museum of Comparative Zoology, 39 (3), 70–154. https://doi.org/10.2307/4073012
  20. Clark, H.L. (1946) The Echinoderm fauna of Australia. Its composition and its origin. Publications of the Carnegie Institution of Washington, 566, 1–567.
  21. Danielssen, D.C. & Koren, J. (1882) Fra den norske Nordhavsexpedition, Echinodermer. Nyt Magazin for Naturvidenskaberne, 27, 267–299.
  22. Djakonov, A.M. (1950) Morskie Zvezdy Morei SSSR T U 34, 1–203. [Translated as Dyakonov, A.M. (1968) Sea stars (Asteroids) of the USSR Seas. Keys to the Fauna of the USSR 34. Zoological Institute of the Academy of Sciences of the USSR, ed. By Strelkov, A.A., Israel Program for scientific translations Ltd. Jerusalem, 183 pp.]
  23. Downey, M.E. (1973) Starfishes from the Caribbean and the Gulf of Mexico. Smithsonian Contributions to Zoology, 126, 1–158. https://doi.org/10.5479/si.00810282.126
  24. Fisher, W.K. (1905) New starfishes from deep water off California and Alaska. Bulletin of the Bureau of Fisheries, 24, 291–320.
  25. Fisher, W.K. (1906) The starfishes of the Hawaiian islands. Bulletin of the United States Fish Commission, 23, 987–1130.
  26. Fisher, W.K. (1911) Asteroidea of the North Pacific and adjacent waters. 1. Phanerozonia and Spinulosida. Bulletin of the US National Museum, 76, xiii, 1–420. https://doi.org/10.5479/si.03629236.76.i
  27. Fisher, W.K. (1916) Notes on the systematic position of certain genera and higher groups of starfishes. Proceedings of the Biological Society of Washington, 29, 1–6.
  28. Fisher, W.K. (1917) Notes on Asteroidea. Annals of the Magazine of Natural History, 20 (8), 166–172.
  29. Fisher, W.K. (1919) Starfishes of the Philippine seas and adjacent waters. Bulletin of the United States National Museum, 3 (100), 1–547. 156 pls.
  30. Foltz, D., Fatland, S., Eléaume, M., Markello, K., Howell, K., Neil, K. & Mah, C. (2013) Global population divergence of the sea star Hippasteria phrygiana corresponds to onset of the last glacial period of the Pleistocene. Marine Biology, 160 (5), 1285–1296. http://dx.doi.org/0.1007/s00227-013-2180-1
  31. Forbes, E. (1839) On the Asteriadae of the Irish Sea. Memoirs of the Wernerian Natural History Society of Edinburgh, 8, 114–129.
  32. Halpern, J.A. (1970) Goniasteridae (Echinodermata: Asteroidea) of the Straits of Florida. Bulletin of Marine Science, 20 (1), 193–286.
  33. Hayashi, R. (1939) Solasterids in Japanese waters. Journal of the Faculty of Imperial Science of Hokkaido University, 6 (3), 297–311.
  34. Hayashi, R. (1940) Contributions to the Classification of the sea-stars of Japan. I. Spinulosa. Journal of the Faculty of Imperial Science of Hokkaido University, 6 (7), 107–204.
  35. Hendrickx, M., Mah, C. & Zarate, C-M. (2011) Deep-water Asteroidea (Echinodermata) collected during the slope cruises in the Gulf of California, Mexico. Revista Mexicana de Biodiversidad, 82, 798–824. https://doi.org/10.22201/ib.20078706e.2011.3.692
  36. Koehler, R. (1909) An account of the deep-sea Asteroidea collected by the Royal Indian Marine Survey Ship Investigator. Echinoderma of the Indian Museum, 5, 1–143.
  37. Ludwig, H. (1903) Seesterne. Résultats du voyage du S.Y. Belgica en 1897–1898–1899. Rapports scientifiques, 1–72 and 7 plates.
  38. Ludwig, H. (1905) Asteroidea. Memoirs of the Museum of Comparative Zoology at Harvard, 32, vii–xii, 1–292+ plates.
  39. Macan, T.T. (1938) Asteroidea. Scientific Reports, John Murray Expedition 1933–1934, 4 (9), 323–435, pls. 1–6.
  40. Mah, C.L. (2015) A new Atlantic species of Evoplosoma with taxonomic summary and in situ observations of Atlantic deep-sea corallivorous Goniasteridae (Valvatida; Asteroidea). Marine Biodiversity Records, 8 (5), 1–8. https://doi.org/10.1017/S1755267214001407
  41. Mah, C.L. (2016) Deep-sea (>1000 m) Goniasteridae (Valvatida; Asteroidea) from the North Pacific, including an overview of Sibogaster, Bathyceramaster n. gen. and three new species. Zootaxa, 4175 (2), 101–141. https://doi.org/10.11646/zootaxa.4175.2.1
  42. Mah, C.L. (2020) New Species, Occurrence Records and Observations of Predation by Deep-sea Asteroidea (Echinodermata) from the North Atlantic by NOAA Ship Okeanos Explorer. Zootaxa, 4766 (2), 201–260. https://doi.org/10.11646/zootaxa.4766.2.1
  43. Mah, C.L. (2021) The East Pacific/South Pacific Boundary: New Taxa and Occurrences from Rapa Nui (Easter Island), New Caledonia and adjacent regions. Zootaxa, 4980 (3), 401–450. https://doi.org/10.11646/zootaxa.4980.3.1
  44. Mah, C.L. (2022) New Genera, Species and Occurrence of Deep-Sea Asteroidea (Valvatacea, Forcipulatacea, Echinodermata) collected from the Tropical Pacific Ocean by the CAPSTONE Expedition. Zootaxa, 5164 (1), 1–75. https://doi.org/10.11646/zootaxa.5164.1.1
  45. Mah, C.L. (2023) New Genera, Species, and observations on the biology of Antarctic Valvatida (Asteroidea). Zootaxa, 5310 (1), 1–88. https://doi.org/10.11646/zootaxa.5310.1.1
  46. Mah, C.L. (2025) New Australian Deep-Sea Goniasteridae (Asteroidea; Valvatacea). Memoirs of the Museum Victoria, 84, 49–88. https://doi.org/10.24199/j.mmv.2025.84.02
  47. Mah, C.L. & Foltz, D.W. (2011a) Molecular Phylogeny of the Valvatacea (Asteroidea, Echinodermata). Zoological Journal of the Linnean Society, 161, 769–788. https://doi.org/10.1111/j.1096-3642.2010.00659.x
  48. Mah, C. & Foltz, D.W. (2011b) Molecular Phylogeny of the Forcipulatacea (Asteroidea: Echinodermata): Systematics & Biogeography. Zoological Journal of the Linnean Society, 162, 646–660. https://doi.org/10.1111/j.1096-3642.2010.00688.x
  49. Mah, C.L., Neill, K., Eleaume, M. & Foltz, D. (2014) New Species and global revision of Hippasteria (Hippasterinae: Goniasteridae; Asteroidea; Echinodermata). Zoological Journal of the Linnean Society, 171, 422–456. https://doi.org/10.1111/zoj.12131
  50. Mah, C.L., Linse, K., Copley, J., Marsh, L., Rogers, A., Clague, D. & Foltz, D. (2015) Description of a New Family, New Genus and Two New Species of deep-sea Forcipulatacea (Asteroidea), including the first known sea star from Hydrothermal Vent Habitats. Zoological Journal of the Linnean Society, 174, 93–113. https://doi.org/10.1111/zoj.12229
  51. Maluf, Y. (1988) Composition and distribution of the central eastern Pacific echinoderms. Natural History Museum of Los Angeles County, 242 pp.
  52. Maluf, L.I. & Brusca, R.C. (2005) Echinodermata. Chapter 18. In: Hendrickx, M.E., Brusca, R.C. & Findley, L.T. (Eds.), A Distributional checklist of the macrofauna of the Gulf of California, Mexico. Part I. Invertebrates. [Listado y distribución de la macrofauna del Golfo de California, México, Parte I. Invertebrados]. Arizona-Sonora Desert Museum, Tucson, Az. USA, pp. 327–343.
  53. Mauzey, K.P., Birkeland, C. & Dayton, P.K. (1968) Feeding behavior of asteroids and escape responses of their prey in the Puget Sound region. Ecology, 49, 603–619. https://doi.org/10.2307/1935526
  54. McKnight, D.G. (1973) Additions to the asteroid fauna of New Zealand: families Radiasteridae, Solasteridae, Pterasteridae, Asterinidae, Ganeriidae and Echinasteridae. NZOI Records, 2 (1), 1–15.
  55. Mortensen, T. (1927) Handbook of the Echinoderms of the British Isles. Oxford University Press, London.
  56. Parelius, J. (1768) Beskrivelse over Nogle Korstrold. Kongelige Norske Videnskabers Selskab Skrifter, 4, 423–428, pl. 14.
  57. Payne, C.Y., Tilic, E., Boschen-Rose, R.E., Gannon, A., Stiller, J., Hiley, A.S., Grupe, B.M., Mah, C.L. & Rouse, G.W. (2023) Xyloplax princealberti (Asteroidea, Echinodermata): A New Species That Is Not Always Associated with Wood Falls. Diversity, 15, 1212. https://doi.org/10.3390/d15121212
  58. Perrier, E. (1881) Report on the Results of dredging in the Gulf of Mexico and in the Caribbean Sea, 1877–79, by the United States Coastal Survey Steamer Blake. 14. Description sommaire des espèces nouvelles d’Astéries. Bulletin of the Museum of Comparative Zoology, 9, 1–31.
  59. Perrier, E. (1884) Mémoire sur les étoiles de mer recueilliés dans la mer des Antilles et le golfe du Mexique : durant les expéditions de dragace faites sous la direction de M. Alexandre Agassiz. Archives (Muséum national d’histoire naturelle (France)), 2 (6), 127−276. https://doi.org/10.5962/bhl.title.82184
  60. Perrier, E. (1891) Echinoderma I. Stellérides. Mission Scientifique du Cap Horn, 1882–83. Zoologie, 6 (3), 1–198.
  61. Perrier, E. (1894) Stellérides. Expéditions Scientifique Travailleur et du Talisman, 3, 1–431, 26 pls.
  62. Seid, C.A., Hiley, A.S., McCowin, M.F., Carvajal, J.I., Cha, H., Ahyong, S.T., Ashford, O.S., Breedy, O., Eernisse, D.J., Goffredi, S.K., Hendrickx, M.E., Kocot, K.M., Mah, C.L., Miller, A.K., Mongiardino Koch, N., Mooi, R., O’Hara, T.D., Pleijel, F., Stiller, J., Tilic, E., Valentich-Scott, P., Waren, A., Wicksten, M.K., Wilson, N.G., Cordes, E.E., Levin, L.A., Cortés, J. & Rouse, G.W. (2025) A faunal inventory of methane seeps on the Pacific margin of Costa Rica. ZooKeys, 1222, 1–250. https://doi.org/10.3897/zookeys.1222.134385
  63. Shen, Z., Mongiardino Koch, N., Seid, C.A., Tilic, E. & Rouse, G.W. (2024) Three New Species of Deep-Sea Wood-Associated Sea Stars (Asteroidea: Caymanostellidae) from the Eastern Pacific. Zootaxa, 5536 (3), 351–388. https://doi.org/10.11646/Zootaxa.5536.3.1
  64. Sladen, W.P. (1882) Asteroidea dredged during the cruise of the Knight Errant in July and August 1880. Proceedings of the Royal Society of Edinburgh, 11, 698–700.
  65. Sladen, W.P. (1882b) Description of Mimaster, a new genus of Asteroidea from the Faeroe Channel. Transactions of the Royal Society of Edinburgh, 11, 698–707.
  66. Sladen, W.P. (1889) Asteroidea. Report of the Scientific Results of H. M. S. Challenger, 30, 1–893.
  67. Spencer, W.K. & Wright, C.W. (1966) Asterozoans, Part U: Echinodermata. In: Moore, R.C. (Ed.), Treatise on Invertebrate Paleontology 3, 1. University of Kansas Press, Lawrence, pp. U4–U107.
  68. Stampanato, S. & Jangoux, M. (2004) The asteroid fauna (Echinodermata) of Marion and Prince Edward Islands. Annals of the South African Museum, 112 (1), 1–16.
  69. VanVeldhuizen, H.D. & Oakes, V.J. (1981) Behavioral responses of seven species of asteroids to the asteroid predator, Solaster dawsoni (responses of asteroids to the predator Solaster dawsoni). Oecologia, 48 (2), 214–220. https://doi.org/10.1007/BF00347967
  70. Verrill, A.E. (1894) Descriptions of new species of starfishes and ophiurans, with a revision of certain species formerly described; mostly from the collections made by the United States Commission of Fish and Fisheries. Proceedings of the United States National Museum, 17 (1000), 245–297. https://doi.org/10.5479/si.00963801.1000.245
  71. Verrill, A.E. (1899) Revision of certain genera and species of starfishes and ophiurans. Proceedings of the US National Museum, 17, 245–297.
  72. Verrill, A.E. (1914) Monograph of the shallow-water starfishes of the North Pacific coast from the Arctic Ocean to California. Harriman Alaska series: US National Museum, 14, 1–408. https://doi.org/10.5962/bhl.title.25926
  73. Ziesenhenne, F.C. (1937) The Templeton Crocker Expedition. X. Echinoderms from the West Coast of Lower California, the Gulf of California and Clarion Island. Zoologica: Scientific Contributions New York Zoological Society, 22 (3), 209–289. https://doi.org/10.5962/p.184686

How to Cite

Mah, C.L. (2026) New species and occurrences of deep-sea Asteroidea (Forcipulatacea, Valvatida, Paxillosida) from the Pacific continental margin of Costa Rica. Zootaxa, 5845 (2), 201–234. https://doi.org/10.11646/zootaxa.5845.2.1