FIG. 21. Limatula smithi. Sta. 191 in The Recent species of the genera Limatula and Limea (Bivalvia, Limacea) present in the Atlantic, with particular reference to those in deep water

FIG. 21. Limatula smithi. Sta. 191, inner view of left mantle margin to show disposition of the tentacles and papillae. Scale bar: 1 mm.