Granja-Fernández R et al. (2014), Ophiuroidea (Echinodermata) from coral reefs in...

ECB-ART-43416

Zookeys 2014 May 07;406:101-45. doi: 10.3897/zookeys.406.6306.

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Ophiuroidea (Echinodermata) from coral reefs in the Mexican Pacific.

Granja-Fernández R , Herrero-Pérezrul MD , López-Pérez RA , Hernández L , Rodríguez-Zaragoza FA , Jones RW , Pineda-López R .

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There are numerous and important coral reefs in the Mexican Pacific, but scarce studies of brittle stars conducted in these ecosystems. In this regard, this work provides the first annotated checklist of brittle stars associated with coral communities and reefs in the Mexican Pacific and an illustrated key to identify the species. We also provide taxonomic descriptions, spatial and bathymetric distributions and some important remarks of the species. We report a total of 14 species of brittle stars belonging to nine genera and seven families. Ophiocnida hispida in Jalisco, Ophiophragmus papillatus in Guerrero, and Ophiothrix (Ophiothrix) spiculata and Ophiactis simplex in Colima are new distribution records. The record of O. papillatus is remarkable because the species has not been reported since its description in 1940. The brittle stars collected in this study, represent 22.2% of the total species previously reported from the Mexican Pacific. Presently, anthropogenic activities on the coral reefs of the Mexican Pacific have increased, thus the biodiversity of brittle stars in these ecosystems may be threatened.

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	Figure 1. Ophiocnida hispida. A dorsal view. Scale bar = 5 mm B dorsal view of the arm C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw. Scale bar = 1 mm. Ophiophragmus papillatus G dorsal view. Scale bar = 5 mm H dorsal view of the arm I ventral view of the arm J dorsal view of the disk (p = papillae around the margin of the disk) K ventral view of the disk L jaw. Scale bar = 1 mm.
	Figure 2. Ophiothrix (Ophiothrix) rudis. A dorsal view. Scale bar = 5 mm B dorsal view of the arm C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw. Scale bar = 1 mm. Ophiothrix (Ophiothrix) spiculata G dorsal view. Scale bar = 5 mm H dorsal view of the arm I ventral view of the arm J dorsal view of the disk K ventral view of the disk L jaw. Scale bar = 1 mm.
	Figure 3. Ophiothela mirabilis. A dorsal view. Scale bar = 5 mm B dorsal view of the arm C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw. Scale bar = 1 mm. Ophiactis savignyi G dorsal view. Scale bar = 5 mm H dorsal view of the arm I ventral view of the arm J dorsal view of the disk K ventral view of the disk L jaw. Scale bar = 1 mm.
	Figure 4. Ophiactis simplex. A dorsal view. Scale bar = 5 mm B dorsal view of the arm. C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw. Scale bar = 1 mm. Ophionereis annulata G dorsal view. Scale bar = 5 mm H dorsal view of the arm (adp = accessory dorsal arm plates) I ventral view of the arm J dorsal view of the disk K ventral view of the disk L jaw. Scale bar = 1 mm.
	Figure 5. Ophiocoma aethiops. A dorsal view. Scale bar = 15 mm B dorsal view of the arm C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw. Scale bar = 5 mm. Ophiocoma alexandri G dorsal view H dorsal view of the arm I ventral view of the arm. Scale bar = 15 mm J dorsal view of the disk K ventral view of the disk. L jaw. Scale bar = 5 mm.
	Figure 6. Ophioderma panamensis. A dorsal view B dorsal view of the arm C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw. Scale bar = 5 mm. Ophioderma teres juvenile G dorsal view. Scale bar = 5 mm H dorsal view of the arm (dp = divided dorsal arm plates) I ventral view of the arm J dorsal view of the disk K ventral view of the disk L jaw. Scale bar = 1 mm.
	Figure 7. Ophioderma sp. 1. A dorsal view B dorsal view of the arm C ventral view of the arm D dorsal view of the disk E ventral view of the disk F jaw (ad = adoral shields). Scale bar = 5 mm. Ophiolepis pacifica G dorsal view. Scale bar = 5 mm H dorsal view of the arm (adp = accessory dorsal arm plates) I ventral view of the arm J dorsal view of the disk K ventral view of the disk L jaw. Scale bar = 1 mm.

References [+] :

Alvarado, [Echinoderms from Marino Ballena National Park, Pacific, Costa Rica]. 2005, Pubmed, Echinobase