Chlamys oamarutica Murdoch, 1924
MURDOCH, R. C. 1924. Some Tertiary Mollusca, with Descriptions of New Species. Transactions of the Royal Society of New Zealand, 55: 157-169, pls. 8-10. [p. 158, pl. 9, fig. 4]
«Chlamys oamarutica n. sp. (Plate 9, fig. 4.)
Shell (left valve) small, thin, nearly equivalve, very little inflated, ears unequal, triangular, posterior small and very oblique; dorsal margins of disc descending slightly concave, anterior, posterior, and basal margins rounded. Sculpture consists of thirteen or fourteen small radiate ribs, sparsely gemmate and much narrower than interspaces, in the latter one, two, or three smaller riblets on basal half of disc, in addition the whole shell is adorned with an exceedingly delicate lacework - like sculpture. Anterior ear with about six small riblets, posterior ear with three somewhat scaly riblets. Interior hinge-line somewhat oblique, narrowly grooved within margin, resilifer-pit small and slightly oblique, adductor-scars indistinct, radiate grooves correspond with external sculpture and lightly crenulate the margin. Dimensions: Dorso-ventral, 26 mm.; ant.-post., 24 mm. Type to be presented to the Wanganui Museum. Locality, Target Gully shell-bed, Oamaru, It is with some hesitation that I describe this species from a single valve. Its sculpture, however, appears to distinguish it well from other of our Tertiary and Recent forms.» ROBERT C. MURDOCH, 1924
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R. C. Murdoch, 1924, plate 9.
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