| Arcidae () |
| 6 cm TL (male/unsexed) |
|
benthic; marine; depth range 0 - 10 m |
| Indo-West Pacific: from Myanmar to the Philippines; north to East China Sea and south to Malaysia. |
|
Shell equivalve, moderately inflated and solid, oblong ovate and distinctly longer than high. Umbones moderately protruding, cardinal area rather narrow. About 21 radial ribs (19 to 23) at each valve; ribs quite narrow and sharp, distinctly rugose, bearing regular rounded nodules on the top. Periostracum rather thin and smooth. Internal margins with strong crenulations corresponding with the external ribs. No byssal gap. Colour: outside of shell white under the medium brown periostracum. Inner side milky white. |
|
|
Not Evaluated (N.E.) Ref. 123251)
|
| harmless |
|
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