Ophioderma panamensis
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Genus: Ophioderma
Name
Ophioderma panamensis Lütken, 1859 – Wikispecies link – Pensoft Profile
Description
Disk pentagonal (dd = 4.7 to 18.1 mm); dorsal and ventral side covered by fine, closely and rounded granulation. Radial shields naked, small and oval (Fig. 6D, E). Oral shields large and oval; wider than long. Adoral shields covered by granules. The madreporite is evident. Eight to ten oral papillae on each side of the jaw (Fig. 6F). Dorsal arm plates overlapping and rectangular with rounded edges; wider than long (Fig. 6B). Ventral arm plates oval and slightly overlapping; wider than long. Reduced lateral arm plates. Ten to 11 short and blunt arm spines; all spines are closely equal in size except the lowest which is longer. Two lanceolated tentacle scales (Fig. 6C). Four bursal slits per interradius (Fig. 6E). Disk brownish (Fig. 6A, D). Dorsal arm plates brown with dark and light bands (Fig. 6B).
Distribution
USA (California), Mexico, El Salvador, Nicaragua, Costa Rica, Panama, Peru, Colombia and Galapagos Islands (Clark HL 1940[1], Hooker et al. 2005[2], Neira and Cantera 2005[3], Alvarado et al. 2010[4]). In Mexico, from the Gulf of California (Baja California Sur, Sonora, Sinaloa), on the Pacific side of Baja California and Baja California Sur, Jalisco, Revillagigedo Islands, Guerrero and Oaxaca (Solís-Marín et al. 2005[5], Honey-Escandón et al. 2008[6], Granja-Fernández and López-Pérez 2011[7], 2012[8]). From intertidal to 40 m depth (Austin and Hadfield 1980[9]). In this study, Ophioderma panamensis was collected on coral reefs from Guerrero and Oaxaca, 4.9 to 9.1 m depth.
Remarks
Ophioderma panamensis was collected under rocks and on sand. Maluf (1988)[10] reported that this species may inhabit rocks, corals and algae. Adults and juveniles were found cohabiting together. Juveniles curled their arms over the dorsal side of the disk which is white in most individuals. This behavior camouflages juveniles on the white sand under the rocks. There are studies that report a wide variety of color patterns in Ophioderma panamensis (Ives 1889[11], Nielsen 1932[12], Ziesenhenne 1955[13]) but, we only found two variations in body colors: brown or grey. In addition, some specimens had white spots on the disk and all specimens presented bands on the dorsal side of the arms. Although some authors report a high incidence of subdivided dorsal arm plates (Ives 1889[11], Nielsen 1932[12], Ziesenhenne 1955[13]), we found only a few specimens with divided (in two segments) dorsal arm plates. Ophioderma panamensis was the most common ophiodermatid on the coral reefs from the Mexican Pacific.
Collected material
GUERRERO: Morro del Cerro Colorado (1 specimen, rock, 5.5 m, 31/05/2012, ICML-UNAM 10570); Zacatoso (3 specimens, rock, 9.1 m, 01/06/2012, ICML-UNAM 10580); El Yunque (3 specimens, rock, 5.5 m, 04/12/2010, ICML-UNAM 10409); Manzanillo (1 specimen, rock, 6.1 m, 30/05/2012, ICML-UNAM 10555); Morros de Potosí (2 specimens, rock, 06/03/2009, ICML-UNAM 10203); Palmitas (5 specimens, rock, 6.4 m, 20/11/2011, ICML-UNAM 10458).
OAXACA: El Zapatito (1 specimen, rock, 23/04/2009, ICML-UNAM 10226); Estacahuite (1 specimen, rock, 17/04/2008, MHN 005-4354); La Mina (1 specimen, rock, 17/04/2008, MHN 005-4343); Boquilla (7 specimens, sand, 02/11/2007, MHN 005-4397); Tijera (1 specimen, 23/11/2007, MHN 005-401); Dos Hermanas (1 specimen, rock, 08/08/2011, ICML-UNAM 10426); Harrys (4 specimens, rock, 9.1 m, 21/10/2011, ICML-UNAM 10438); Guerrilla (2 specimens, rock, 4.9 m, 18/05/2012, ICML-UNAM 10540).
Taxon Treatment
- Granja–Fernández, R; Herrero-Pérezrul, M; López-Pérez, R; Hernández, L; Rodríguez-Zaragoza, F; Jones, R; Pineda-López, R; 2014: Ophiuroidea (Echinodermata) from coral reefs in the Mexican Pacific ZooKeys, 406: 101-145. doi
Other References
- ↑ Clark H (1940) Notes on Echinoderms from the West Coast of Central America. Eastern Pacific Expeditions of the New York Zoological Society. Zoologica 25(3): 331-352.
- ↑ Hooker Y, Solís-Marín F, Lleellish M (2005) Echinoderms from Lobos de Afuera islands (Lambayeque, Peru). Revista Peruana de Biología 12(1): 77-82.
- ↑ Neira R, Cantera J (2005) Composición taxonómica y distribución de las asociaciones de equinodermos en los ecosistemas litorales del Pacífico Colombiano. Revista de Biología Tropical 53(3): 195-206.
- ↑ Alvarado J, Solís-Marín F, Ahearn C (2010) Echinoderm (Echinodermata) diversity in the Pacific coast of Central America. Marine Biodiversity 40: 45-56. doi: 10.1007/s12526-009-0032-5
- ↑ Solís-Marín F, Laguarda-Figueras A, Durán-González A, Ahearn C, Torres-Vega J (2005) Equinodermos (Echinodermata) del Golfo de California, México. Revista de Biología Tropical 53(3): 123-137.
- ↑ Honey-Escandón M, Solís-Marín F, Laguarda-Figueras A (2008) Equinodermos (Echinodermata) del Pacífico Mexicano. Revista de Biología Tropical 56(3): 57-73.
- ↑ Granja-Fernández M, López-Pérez R (2011) Nuevos registros de ofiuroideos (Echinodermata: Ophiuroidea) para localidades de Zihuatanejo (Guerrero) y Puerto Escondido (Oaxaca), Pacífico mexicano. Revista Mexicana de Biodiversidad 82: 1320-1323.
- ↑ Granja-Fernández M, López-Pérez R (2012) Biodiversidad de ofiuroideos (Echinodermata: Ophiuroidea) de Oaxaca y Chiapas. In: Sánchez A Chiappa-Carrara X Brito-Pérez R (Eds) Recursos Costeros del Sureste: tendencias actuales en investigación y estado del arte, 357–370.
- ↑ Austin W, Hadfield M (1980) Ophiuroidea: The Brittle Stars. In: Morris R Abbott D Haderlie E (Eds) Intertidal Invertebrates of California. Stanford University Press, Stanford, California, USA, 146–159.
- ↑ Maluf L (1988) Composition and distribution of the Central Eastern Pacific Echinoderms. Natural History Museum of Los Angeles County, Technical Reports 2: 1-242.
- ↑ 11.0 11.1 Ives J (1889) Variation in Ophiura panamensis and Ophiura teres. Proceedings of the Academy of Natural Sciences of Philadelphia 41: 76-77.
- ↑ 12.0 12.1 Nielsen E (1932) Ophiurans from the Gulf of Panama, California, and the Strait of Georgia. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening 91: 241-346.
- ↑ 13.0 13.1 Ziesenhenne F (1955) A review of the genus Ophioderma M. and T. In: Essays in the natural sciences in honor of Captain Allan Hancock on the occasion of his birthday july 26, 1955. (ed. not indicated), University of Southern California, Los Angeles, 185–201.
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