Acar plicata ( Dillwyn, 1817 )

Raines, Bret & Huber, Markus, 2012, 3217, Zootaxa 3217, pp. 1-106 : 17

publication ID

1175­5334

persistent identifier

https://treatment.plazi.org/id/03F187DA-6F47-FF9C-A394-8BA0FB3EF9C6

treatment provided by

Felipe

scientific name

Acar plicata ( Dillwyn, 1817 )
status

 

Acar plicata ( Dillwyn, 1817) View in CoL

Figures 7 A–F

Arca plicata Dillwyn, 1817: p. 227 View in CoL .

Acar plicata ( Dillwyn, 1817) View in CoL — Preece, 1995: p. 350; Brook & Marshall, 1998: p. 211; Okutani, 2000: p. 849, pl. 422, fig. 18; Tröndlé & Boutet, 2009: p. 4; Huber, 2010: p. 130, fig. 5; Spencer et al., 2011: p. 1; Severns, 2011: p. 432, pl. 197, fig. 6.

Byssoarca divaricata G.B. Sowerby I, 1833: p. 18 View in CoL .

Acar hawaiensis Dall et al., 1938: p. 14 View in CoL , pl. 1, figs. 5–8.

Barbatia (Acar) divaricata ( Sowerby, 1833) — Kay, 1979: p. 501, figs. 161 E–G.

Barbatia (Acar) — Luke, 1995: p. 106.

Arca sp. — Trego, 1997: p. 199.

Material examined. Over 100 single valves (6 to 16.1 mm) (BK), including material from the 1957/58 Downwind Expedition ( SIO Benthic Collection, M1442).

Diagnosis. Shell small, elongated trapezoidal, inflated, equivalve, inequilateral, not fragile. Umbones elevated. Posterior end comes to a point at the ventral margin. Exterior surface of pronounced commarginal ridges crossed by radiating ribs. Hinge consisting of numerous teeth continuous under the umbones, slanted, and larger distally. Color creamy white to tan.

Remarks. As usual the EI specimens are quite small, but conform well to Indo-Pacific and Hawaiian material. The Barbatia (Acar) and Arca species noted by Luke (1995) and Trego (1997) from the SIO Benthic Collection, M1442 ( Figs. 7 D–F) represent this species as well.

Habitat. Commonly found at many locations around EI, dead in sand, from 50–150 m.

Distribution. Acar plicata is widely distributed from the Red Sea throughout the Indo-Pacific, to include the Society Islands, Tuamotu Archipelago, Pitcairn Islands, Hawaiian Islands, eastern Australia, Lord Howe Island, Norfolk Island, and the Kermadec Islands. Easter Island is now considered a range extension— E5.

SIO

Scripps Institution of Oceanography

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Arcida

Family

Arcidae

Genus

Acar

Loc

Acar plicata ( Dillwyn, 1817 )

Raines, Bret & Huber, Markus 2012
2012
Loc

Arca sp.

Trego, K. D. 1997: 199
1997
Loc

Acar plicata ( Dillwyn, 1817 )

Spencer, H. G. & Willan, R. C. & Marshall, B. & Murray, T. J. 2011: 1
Severns, M. 2011: 432
Huber, M. 2010: 130
Trondle, J. & Boutet, M. 2009: 4
Okutani, T. 2000: 849
Brook, F. J. & Marshall, B. A. 1998: 211
Preece, R. C. 1995: 350
1995
Loc

Barbatia (Acar)

Luke, S. R. 1995: 106
1995
Loc

Barbatia (Acar) divaricata ( Sowerby, 1833 )

Kay, E. A. 1979: 501
1979
Loc

Acar hawaiensis

Dall, W. H. & Bartsch, P. & Rehder, H. A. 1938: 14
1938
Loc

Byssoarca divaricata G.B. Sowerby I, 1833 : p. 18

Sowerby I, G. B. 1833: 18
1833
Loc

Arca plicata

Dillwyn, L. W. 1817: 227
1817
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