Astropecten antillensis Lu, 1859

Cunha, Rosana, Martins, Luciana, Menegola, Carla & Souto, Camilla, 2021, Taxonomy of the sea stars (Echinodermata: Asteroidea) from Bahia State, including ontogenetic variation and an illustrated key to the Brazilian species, Zootaxa 4955 (1), pp. 1-78 : 8-10

publication ID

https://doi.org/ 10.11646/zootaxa.4955.1.1

publication LSID

lsid:zoobank.org:pub:E800A72A-C56A-492C-9EE6-FA4F8277DE31

DOI

https://doi.org/10.5281/zenodo.4691064

persistent identifier

https://treatment.plazi.org/id/FF6987EE-FFAA-FFDE-FF54-421379E8FF23

treatment provided by

Plazi

scientific name

Astropecten antillensis Lu
status

 

Astropecten antillensis Lu View in CoL View at ENA ̈tken, 1860

Figures 2–3 View FIGURE 2 View FIGURE 3

Astropecten antillensis Lu ̈tken, 1860: 47.

Astropecten antillensis View in CoL — Clark & Downey 1992: 29–30, figs. 9c, 11c, d, pls 9C, D; Benavides-Serrato et al. 2011: 114; Williams et al. 2013: 456; Nisperuza et al. 2016: 115; Soaréz 2016: 78; Borrero-Peìrez et al. 2019: 4; Cunha et al. 2020: 47 View Cited Treatment , fig. 9.

Material examined (3 specs, 20–43 mm R). BRAZIL. Bahia (12°52’– 12°56’S; 38°12’– 38°30’W)— Busca Vida beach, Guarajuba, 45 m, ii.2008, 1 spec, R GoogleMaps 20 mm ( UFBA 949 ). Salvador: Plataforma beach, 16 m, 27.ix.2010, 1 spec, R 21 mm ( UFBA 1183 ); Porto beach, 13 m, vi.2012, 1 spec, R 43 mm ( UFBA 1620 ) .

Comparative material. VIRGIN ISLAND. St. Thomas , 4 specs, R 10–56 mm ( NHMD 76172 , syntypes) .

Description (R 43 mm). Disc half size of arms; R/r 2.5; 22 SM plates; R/SM# 1.95. Arms long and narrow ( Fig. 2A–C View FIGURE 2 ). Abactinal region covered by paxillae with 1–5 central and 10–12 peripheral spinelets ( Fig. 2D View FIGURE 2 ). Number of paxillae spinelets increases toward center of disc. Madreporite small, partially hidden among paxillae ( Fig. 2D View FIGURE 2 ). Superomarginal and inferomarginal plates organized in one row each; inferomarginal plates not projected beyond superomarginal plates. Superomarginal plates covered by spines, fine granules and spinelets. First superomarginal plate with one spine, others with two spines ( Fig. 2E View FIGURE 2 ). Spine on first plate twice as large as spines from other plates. In plates with two spines, inner spine smaller than outer spine. Inferomarginal plates separated by a gap. Fringe with two layers of flattened and pointed spines, oblique, top layer with two large spines of equal size and another thinner and smaller spine ( Fig. 2F View FIGURE 2 ), bottom layer with three small spines. Actinal surface of inferomarginal plates lacks squamules (short, flat, scalelike spines; from Cobb et al. 2019); central region naked, sometimes with long spines similar to lateral fringe spines ( Fig. 2H View FIGURE 2 ). Three equal-sized adambulacral spines forming a single row. Subambulacral row with three spines, central spine larger than adjacent ones ( Fig. 2I View FIGURE 2 ); sometimes a second row with 1–3 spines present. Oral spines with broad, blunt tip ( Fig. 2G View FIGURE 2 ). Pedicellariae absent.

Ontogenetic variation (R 20–21 mm). Average R/r 4.1; 19 SM plates (R 20 mm); R/SM# 1.0. Paxillae with 1–3 central and 5–9 peripheral spines ( Fig. 3D View FIGURE 3 ). Inferomarginal plates project beyond superomarginal plates ( Fig. 3E View FIGURE 3 ). Superomarginal plates with only one spine; spine on first superomarginal plate relatively larger than that of larger specimen ( Fig. 3A, F View FIGURE 3 ). Actinal region of inferomarginal plates with fewer squamules than those of larger specimens.

Coloration. Yellowish body with white inferomarginal fringe; Caribbean specimens are yellowish, reddish and orange in situ ( Clark & Downey 1992; Benavides-Serrato et al. 2005); white or pale brown in ethanol.

Distribution. Gulf of Mexico, Cuba, Antilles, Puerto Rico, Colombia ( Sladen 1889; Bayer et al. 1970; Clark & Downey 1992; Abreu-Pérez et al. 2005; Williams et al. 2013; Nisperuza et al. 2016; Soaréz 2016; Borrero-Peìrez et al. 2019). BRAZIL: Bahia and possibly Trindade Island ( John 1948; Cunha et al. 2020). Depth. 3–278 m ( Clark & Downey 1992).

Biological notes. In Bahia, Astropecten antillensis lives in nutrient-poor regions with sandy and muddy bottoms. This species can also be found in rubble bottoms ( Zoppi de Roa 1967; Alvarado & Solís-Marín 2013).

Syntype. NHMD 76172 [previously as ZMUC AST 4 View Materials ], 76371 (Tom Schiøtte, per. comm) .

Type locality. St. Thomas, Virgin Islands.

Remarks. John (1948) noticed that some of the specimens identified as A. brasiliensis by Sladen (1889) were actually A. antillensis ; John’s publication was the first record of this species in Brazil. H.L. Clark (1901) most likely misidentified the Astropecten specimens collected in Puerto Rico because in his identification key, he reported that specimens of A. antillensis do not have spines on marginal plates (given that Clark mentioned in the description following the key that the specimens had inferomarginal spines, “marginal” probably referred to the superomarginal plates).

R

Departamento de Geologia, Universidad de Chile

ZMUC

Zoological Museum, University of Copenhagen

Kingdom

Animalia

Phylum

Echinodermata

Class

Asteroidea

Order

Paxillosida

Family

Astropectinidae

Genus

Astropecten

Loc

Astropecten antillensis Lu

Cunha, Rosana, Martins, Luciana, Menegola, Carla & Souto, Camilla 2021
2021
Loc

Astropecten antillensis

Cunha, R. & Tavares, M. & Mendonca, J. B. 2020: 47
Nisperuza, P. C. & Padilla, C. J. & Quiros, R. J. 2016: 115
Williams, S. M. & Benavides-Serrato, M. & Garcia-Arraras, J. E. & Hernandez-Delgado, E. A. & Rodriguez-Barreras, R. 2013: 456
Benavides-Serrato, M. & Borrero-Perez, G. & Diaz-Sanchez, C. 2011: 114
Clark, A. M. & Downey, M. E. 1992: 29
1992
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