Distinguishing Characteristics |
Bivalve (2 shells); shell oval, elongate; color white, may be slightly iridescent; anterior end long and rounded; posterior end shorter and truncate, curves to the right; beak closer to posterior end, slightly twisted towards posterior; surface smooth with fine concentric growth lines; slight radial ridge on posterior end; anterior abductor scar long and slender; posterior scar more rounded; pallial sinus large, extends almost to anterior scar, meets pallial line about midway; 2 cardinal teeth in right beak, 1 in left beak. |
Similar Species |
More slender than most macomas and tellins. Most similar to the slender macoma (M. extenuata) but differs by having a pallial sinus that is rounded above. |
Habitat |
Bay, muddy bottoms |
Maximum Size |
1.8 mm (3/4 in) |
Other Common Names |
tenta macoma, narrowed macoma |
Previous Scientific Names |
|
Comments |