Pentaceraster cumingi

Pentaceraster cumingi, sometimes known as the Panamic cushion star, Cortez starfish or knobby star (a name also used for other species), is a species of starfish in the family Oreasteridae. It is found in warmer parts of the East Pacific (Gulf of California to northwest Peru, including offshore islands like the Galápagos) and in Hawaii.[1] In Panama this species has been collected from the Pearl Islands (depth 8 m), Gulf of Panama, and off Coiba Island, Gulf of Chiriqui.[2] It reaches a diameter of about 30 cm (12 in).[3]

Pentaceraster cumingi
Pentaceraster cumingi in Coiba National Park, Panama
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Asteroidea
Order: Valvatida
Family: Oreasteridae
Genus: Pentaceraster
Species:
P. cumingi
Binomial name
Pentaceraster cumingi
(Gray, 1840)

Distribution and habitat

P. cumingi is found along the coasts of the Tropical Eastern Pacific[4][5] and beyond, ranging as far north as the Gulf of California[6] and as far south as the coast of northern Peru.[4] It inhabits the shallow sub-tidal zone, usually in rocky terrain.[4]

Diet

P. cumingi primarily feeds by scavenging and through a carnivorous diet.[7] Its diet consists of ocean floor algae, microscopic organisms, and seagrass. On occasion, P. cumingi has been known to eat other echinoderms.[8]

Reproduction

P. cumingi reproduces either sexually or asexually. It is gonochoric (having separate sexes). Asexual reproduction, which results in a clonal offspring, occurs by fission, splitting the central disc.[9]

Ornamentation

The skeleton of this species is commonly used for ornamentation and sold as a souvenir in Peru and Mexico.[4][6] The P. cumingi population has greatly decreased in Peru because of their use as souvenirs, and P. cumingi is now considered close to extinction in this country.[4] The population size in Mexico is unknown.[6]

References
  1. James, M.J., eds. (1991). Galápagos Marine Invertebrates: Taxonomy, Biogeography, and Evolution in Darwin's Islands. pp. 349. Topics in Geobiology. ISBN 978-1-4899-0646-5
  2. Encyclopedia of Life. "Details for: Pentaceraster cumingi". Encyclopedia of Life. Retrieved 2013-07-15.
  3. MexFish: Panamic Cushion Star, Cortez Sea Starfish, Gulf Sea Star, Estrella de Mar, Estrella Roja (Pentaceraster cumingi) Archived 2015-12-22 at the Wayback Machine. Retrieved 12 December 2015.
  4. Hooker, Yuri; Prieto-Rios, Elba; Solís-Marín, Francisco A. (2012-08-04), "Echinoderms of Peru", Echinoderm Research and Diversity in Latin America, Springer Berlin Heidelberg, pp. 277–299, doi:10.1007/978-3-642-20051-9_8, ISBN 9783642200502
  5. "Species and Conservation - MigraMar". MigraMar. Retrieved 2018-11-30.
  6. Solís-Marín F.A. et al. (2013) The Echinoderms of Mexico: Biodiversity, Distribution and Current State of Knowledge. In: Alvarado J., Solis-Marin F. (eds) Echinoderm Research and Diversity in Latin America. Springer, Berlin, Heidelberg
  7. Mulcrone, Renee Sherman. "Asteroidea". Animal Diversity Web. Retrieved 2018-12-06.
  8. "Panamic Cushion Star pictures and species identification". 2015-12-22. Archived from the original on 2015-12-22. Retrieved 2018-12-06.
  9. Mulcrone, Renee Sherman. "Asteroidea". Animal Diversity Web. Retrieved 2018-12-06.
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