Cyclopecten compitum Marwick 1929
MARWICK, J. 1929. Tertiary Molluscan fauna of Chatton, Southland. Transactions of the New Zealand Institute, 59 (4): 903-934. [p. 909, fig. 8]
«Cyclopecten compitum n. sp. (Fig. 8.)
Shell minute, prodissoconch smooth, sharply defined. Left valve with ears of moderate size not sharply defined from disc. Surface smooth in young stages, but later with many fine, close radial threads, not persistent but tending to zonal arrangement. Towards margin appear about 17 rounded, strong radial ribs with much wider interspaces. The ribs bear strong spaced scales and tend to be knotty. Concentric growth-lines well marked, some, especially on posterior, projecting as jagged edges.
Holotype in collection of N.Z. Geological Survey. Height, 1.6 mm.; length, 1.4 mm. Easily distinguished from the Recent species by the discrepancy in sculpture. In a recent revision of the New Zealand Pectinidae (Marwick, 1928, p. 456) the writer unfortunately overlooked a lapsus calami so that Cyclochlamys appears instead of Cyclopecten. Thanks are due to Dr. H. J. Finlay for noticing this mistake:» JOHN MARWICK, 1929
|
J. Marwick, 1929, figures 1-15.
|