Distinguishing Characteristics |
Bivalve (2 shells); shell oval, elongate, slightly inflated; color white, iridescent; anterior end broadly rounded; posterior end more narrowly rounded; posterior end slightly shorter than anterior end; beaks small; weak ridge from beak to posterior end; shell with faint concentric growth rings; 2 cardinal teeth in right valve, 0-2 in left valve, no lateral teeth; pallial sinus large, rounded dorsally, gently slopes to pallial line before reaching anterior muscle scar. |
Similar Species |
Most similar to the elongate macoma, M. tenta, which has a narrower more truncate posterior end. |
Habitat |
Bay, near mouths of rivers |
Maximum Size |
2.5 cm (1 in) |
Other Common Names |
Mitchell's macoma |
Previous Scientific Names |
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