Hyalopecten Verrill, 1897
VERRILL, A. E. 1897. A study of the family Pectinidae, with a revision of the genera and subgenera. Transactions of the Connecticut Academy of Arts and Sciences, 10: 41-95, pls. 16-21. [p. 71]
«Hyalopecten, gen. nov. Type, H. undatus V.
PLATE XVIII. fig. 5.
Shell compressed, thin, hyaline. Valves nearly equal, with concentric undulations or corrugations, affecting the entire thickness; margins simple; sculpture none, or consisting of fine radial lines on one or both valves, without camptonectes sculpture. Hinge-plate thin and nearly plain; auricles well developed, unequal; byssal notch distinct.
The possible relations of this group to Syncyelonema were discussed on page 63. The species known to me are as follows: H. dilectus V. and B., from 1813 fath., off Martha's Vineyard; H. fragilis (Jeff.), from northern Europe and the Arctic Ocean, and off the U. S. coast, in 578 to 1525 fath.; H. undatus Ver., off the U. S. coast, in 1423 fath.; and H. pudicus Smith, off Marion I., in 1375 fath.» ADDISON EMERY VERRILL, 1897
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Hyalopecten undatus; A. E. Verril, 1897, A study of the family Pectinidae, with a revision of the genera and subgenera, plate 18, figure 5.
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