. The edible clams, mussels and scallops of California. Mollusks; Shellfish. 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 peri
. The edible clams, mussels and scallops of California. Mollusks; Shellfish. 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. Fig. 16. Schizothaenis nuttaUL One-half natural size. ee. Ligament internal, shell not strikingly elongated, without parallel mar- gins ; siphons with heavy dark epidermis, f. Lower edge of pallial sinus united with pallial line ; cartilage pits equal in the two valves; retracted siphons projecting beyond shell, tip with a pair of plates ; umbo nearer the anterior end of the shell. Gaper Schizothaerus nuttalli p. 54; pi. 16 , fig. 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weymouth Frank Walter; California. State Fisheries Laboratory; California. Fish and Game Commission. Sacramento : California State Printing Office
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmollusks, bookyear192
