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386 like nodes. Behind the tiny, curved beaks there is an ovalish, heart-shaped depression. Internal margin of valves strongly crenulated with tiny teeth. Adults are commonly misshapen by concentric growth stops. Common from shallow water to 68 fathoms. Compare with L. multilineata.

Figure 78. American Lucinas. ATLANTIC: a, Fhacoides fllosiis Stimpson, i to 3 inches; b, Liicina soffibrerensis Dall, Y^ inch; c, Liicina amiantus Dall, % inch; d and e, Lucina leiicocyvia Dall, 34 inch; f, Liicina multilineata Tourney and Holmes, % inch. PACIFIC: g, Lucina approxiinata Dall, ^ inch; h, Liicina tenui- sculpta Cpr., % inch. Subgenus Farvilucina Dall 1901 Lucina multilineata Tuomey and Holmes North Carolina to both sides of Florida. % to ^/4 inch in length, almost circular in shape, very obese, moderately Many-lined Lucina Figure ySf