. The edible clams, mussels and scallops of California . Fig. 14. Zirfaea gahbi. One-half natural size. Exterior left valve. h. Valves gaping widely, particularly at siphonate end; pallial sinus small, not reaching over i of the way to the anterior muscle scar, not united with the pallial line; siphons united, extremely long and large, covered with thick dark epidermis. Geoduck Panope generosa p. 63 ; pi. IS , fig. 2 hh. "Valves gaping moderately; pallial sinus large, reaching i to i of the way to the anterior muscle scar, united with pallial line; siphons separate, long, without heavy ep
. The edible clams, mussels and scallops of California . Fig. 14. Zirfaea gahbi. One-half natural size. Exterior left valve. h. Valves gaping widely, particularly at siphonate end; pallial sinus small, not reaching over i of the way to the anterior muscle scar, not united with the pallial line; siphons united, extremely long and large, covered with thick dark epidermis. Geoduck Panope generosa p. 63 ; pi. IS , fig. 2 hh. "Valves gaping moderately; pallial sinus large, reaching i to i of the way to the anterior muscle scar, united with pallial line; siphons separate, long, without heavy epidermis. Sunset shells Psammohia i. Shell oval (about one and a half times as long as wide), umbos nearly central. P. californica p. 45 ; pi. 14 , fig. 1 ii. Shell elongated (about twice as long as wide), umbos much nearer anterior end. P. edentula p. 45
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmollusks, bookyear192
