Gondim AI et al. (2013), A taxonomic guide to the brittle-stars (Echinod...

ECB-ART-42927

Zookeys 2013 Jun 10;307:45-96. doi: 10.3897/zookeys.307.4673.

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A taxonomic guide to the brittle-stars (Echinodermata, Ophiuroidea) from the State of Paraíba continental shelf, Northeastern Brazil.

Gondim AI , Alonso C , Dias TL , Manso CL , Christoffersen ML .

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We provide the first annotated checklist of ophiuroids from the continental shelf of the State of Paraíba, northeastern Brazil. Identification keys and taxonomic diagnoses for 23 species, belonging to 14 genera and 8 families, are provided. The material is deposited in the Invertebrate Collection Paulo Young, at the Federal University of Paraíba. Ophiopsila hartmeyeri represents the first record for the northeastern region of Brazil, while Ophiolepis impressa, Ophiolepis paucispina, Amphiura stimpsoni, Amphiodia riisei, Ophiactis quinqueradia, Ophiocoma wendtii and Ophionereis olivaceae are new records for the State of Paraíba. The number of species known for the state was increased from 16 to 23, representing approximately 17% of the species known for Brazil and 54% of the species known for northeastern Brazil. The recorded fauna has a large geographical and bathymetrical distribution.

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Genes referenced: LOC115925415

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	Figure 1. Collecting stations of Project Algae along the coast of the State of Paraíba, northeastern Brazil, with indication of the abundance of specimens in each site. Ø = absent in the collection point, □ = occurrence of 1 to 10 specimens, ○ = occurrence of 11 to 50 specimens, and ☆ = occurrence of more than 50 specimens.
	Figure 2. Species of the families Ophiomyxidae (A–E) and Ophiotrichidae (F–J). Ophiomyxa flaccida. A dorsal view, in detail the marginal interradius with a row of large scales B ventral view C jaw D dorsal view of the arm E ventral view of the arm. Ophiothrix (Ophiothrix) angulata F dorsal view, in detail the radial shields G ventral view H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 3. Species of the family Ophiolepididae. Ophiolepis impressa A dorsal view B ventral view C jaw D detail of the radial shield E ventral view of the arms F dorsal view of the arms. Ophiolepis paucispina G dorsal view H ventral view I jaw J dorsal view of the arms (adp: accessory dorsal arm plate) L ventral view of the arms. Scale bar = 1 mm.
	Figure 4. Species of the family Amphiuridae. Amphiodia planispina A dorsal view, detail of the radial shields B ventral view C jaw D dorsal view of the arms E ventral view of the arms. Amphiodia riisei F dorsal view, detail of the primary plates G ventral view H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 5. Species of the family Amphiuridae. Amphipholis januarii A dorsal view, detail of the radial shields B ventral view C jaw D dorsal view of the arms E ventral view of the arms F detail of the arm spine. Amphipholis squamata G dorsal view H ventral view I jaw J dorsal view of the arms L ventral view of the arms. Scale bar = 1 mm.
	Figure 6. Species of the family Amphiuridae (A–I). Amphiura stimpsoni. A dorsal view, detail of the radial shields; B ventral view C jaw D dorsal view of the arms E ventral view of the arms. Ophiocnida scabriuscula F dorsal view, detail of the radial shields G ventral view H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 7. Species of the family Amphiuridae. Ophiophragmus brachyactis A dorsal view, detail of the fence of papillae B ventral view C jaw D dorsal view of the arms E ventral view of the arms. Ophiostigma isocanthum F dorsal view G ventral view H detail of the radial shields I jaw J dorsal view of the arms L ventral view of the arms. Scale bar = 1 mm.
	Figure 8. Species of the family Ophiactidae. Ophiactis quinqueradia A dorsal view B ventral view C jaw D dorsal view of the arms E ventral view of the arms F detail of the radial shields. Ophiactis savignyi G dorsal view, detail of the radial shields H ventral view I jaw J dorsal view of the arms L ventral view of the arms. Scale bar = 1 mm.
	Figure 9. Species of the family Ophionereididae. Ophionereis reticulata A dorsal view, detail of the radial shields B ventral view, detail of the genital scale (gs) C jaw D dorsal view of the arms E ventral view of the arms. Ophionereis squamulosa F dorsal view, detail of the accessory dorsal arm plate (adp) G ventral view H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 10. Species of the family Ophionereididae. Ophionereis dolabriformis A dorsal view, detail of the radial shields B ventral view, detail of the genital scale (gs) C jaw D dorsal view of the arms E vental view of the arms. Ophionereis olivacea F dorsal view, detail of the radial shields F ventral view, detail of the accessory dorsal arm plate (adp) H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 11. Species of the family Ophiocomidae. Ophiocoma echinata A dorsal view B ventral view, detail of the genital scale (gs) C jaw D dorsal view of the arms E ventral view of the arms. Ophiocoma wendtii F dorsal view G ventral view H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 12. Specimen of the family Ophiocomidae (a–e). Ophiopsila hartmeyeri A dorsal view, detail of the radial shields B ventral view, detail of the tentacle scale C jaw D dorsal view of the arms E ventral view of the arms. Scale bar = 1 mm.
	Figure 13. Species of the family Ophiodermatidae (a–d). Ophioderma appressa A dorsal view B ventral view C jaw D ventral view of the arms E ventral view of the arms. Ophioderma cinerea F dorsal view, detail of the radial shields G ventral view H jaw I dorsal view of the arms J ventral view of the arms. Scale bar = 1 mm.
	Figure 14. Some ophiurans in their natural habitat. A Ophiomyxa flaccida B Ophiolepis impressa C Ophiothrix angulata D Ophiocoma echinata E Ophioderma cinerea F Ophioderma appressa. Photos by Thelma L. P. Dias.
	Figure 15. Number of individuals/species of the families Ophiomyxidae, Amphiuridae and Ophiactidae, according to different bathymetric ranges.
	Figure 16. Number of individuals/species of the families Ophiocomidae, Ophiodermatidae, Ophionereididae, Ophiotrichidae and Ophiuridae, according to different bathymetric ranges.
	Figure 17. Number of individuals per family, according to different bathymetric ranges.

References [+] :

Abreu-Pérez, [Catalogue of neritic-benthonic echinoderms (Echinodermata: Asteroidea and Ophiuroidea) from the Cuban Archipelago]. 2005, Pubmed, Echinobase