. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. Fig. 102— Interior view of hince ligament. Lig, ligament; LR, ligament ridge FlG. 103.—Interior view of anterior end of a valve showing four hinge teeth, T. Fig. 104.—Inner surface of a valve showing muscle impressions. . anterior adductor muscle; An, anal muscle; A Ret, anterior retractor muscle; PAJ, posterior adductor muscle; Pal pallial muscle; PRet, posterior retractor muscle. 105.—Dorsal surface of a shell from which periostracum and ligament have been removed. LC, ligam
. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. Fig. 102— Interior view of hince ligament. Lig, ligament; LR, ligament ridge FlG. 103.—Interior view of anterior end of a valve showing four hinge teeth, T. Fig. 104.—Inner surface of a valve showing muscle impressions. . anterior adductor muscle; An, anal muscle; A Ret, anterior retractor muscle; PAJ, posterior adductor muscle; Pal pallial muscle; PRet, posterior retractor muscle. 105.—Dorsal surface of a shell from which periostracum and ligament have been removed. LC, ligament cleft. Fig. 106.—Ventral surface of a shell from which periostracum has been removed. ByC, byssus cleft; 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 United States Fish Commission. Washington, The Commission, Govt. Print. Off
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