. The edible clams, mussels and scallops of California . Fic. 1,^. Siliqua. On«-haIt" natural ff. Shell strikingly elongated (length three or more times the breadth), with hinge margin and free margin parallel or nearly so, gaping about equally at both ends ; animal moving freely up and down a permanent burrow. Jackknife clams g. Umbo centi-al : siphons sepaiate, long. Tagclus california)tus p. 48; pi. 15 , fig. 1 gg. Umbo at extreme anterior end, siphons united. Solen h. Animal of moderate size; shell slightly curved, about 4 times as long as wide, with yellowish periostracum; foot with
. The edible clams, mussels and scallops of California . Fic. 1,^. Siliqua. On«-haIt" natural ff. Shell strikingly elongated (length three or more times the breadth), with hinge margin and free margin parallel or nearly so, gaping about equally at both ends ; animal moving freely up and down a permanent burrow. Jackknife clams g. Umbo centi-al : siphons sepaiate, long. Tagclus california)tus p. 48; pi. 15 , fig. 1 gg. Umbo at extreme anterior end, siphons united. Solen h. Animal of moderate size; shell slightly curved, about 4 times as long as wide, with yellowish periostracum; foot with dark pigment. S. sicarius p. 50 ; pi. 15 , fig. 2 hh. Animal small; shell straight, about 5 times as long as wide, with slight transparent periostracum through which the flesh color of the shell usually shows ; foot with little or no pigment. S. rosaccus p. 50 ; pi. 15 , fig. 3 I
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmollusks, bookyear192
