Chlamys (Plagioctenium) choctawhatcheensis redbayensis Mansfield, 1932
MANSFIELD, W. C. 1932. Miocene Pelecypods of the Choctawhatchee Formation of Florida. Florida Geological Survey Bulletin, 8, 240 pp., 34 pls. [p. 64, pl. 11, fig. 3]
«Chlamys (Plagioctenium) choctawhatcheensis redbayensis
Mansfield. n. subsp. Plate 11. Figure 3 One left valve from Red Bay is a little different from Chlamys choctawhatcheensis n. sp. and appears to represent a new subspecies. It differs from C. choctawhatcheensis in having a less inflated shell and fewer, more widely spaced, and more distinct ribs. The ribs are 18 in number, moderately wide, and separated by interspaces about equal in width to ribs. In other features the shell is similar to the species.
Holotype (Cat. No. 371143, U. S. N. M.) measures: Left valve: Length, 41 mm.; height, 38 mill.; diameter, 12 mm. Occurrence: Upper middle Miocene: Arca zone — Jim Kennedy Branch, about 1 mile cast of Red Bay, Walton County, Fla., the type locality.» WENDELL CLAY MANSFIELD, 1932
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W. C. Mansfield, 1932, plate 11.
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