Bivalvia | Arcida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 10 m (Ref. 348). Tropical
Indo-West Pacific: from Myanmar to the Philippines; north to East China Sea and south to Malaysia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 6.0 cm TL male/unsexed; (Ref. 348); common length : 4.0 cm TL male/unsexed; (Ref. 348)
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.
On sand and mud bottoms. Intertidal and shallow sublittoral waters to a depth of 10 m (Ref. 348).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.
Poutiers, J.M. 1998. (Ref. 348)
IUCN Red List Status (Ref. 124695)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 25.3 - 29.3, mean 28.7 (based on 1860 cells).
Low vulnerability (10 of 100)