Sinezona Finlay, 1926

Geiger, Daniel L. & Mclean, James H., 2010, New species and records of Scissurellidae and Anatomidae from the Americas (Mollusca: Gastropoda: Vetigastropoda), Zootaxa 2356, pp. 1-35: 4

publication ID 10.5281/zenodo.275645

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Sinezona Finlay, 1926


Sinezona Finlay, 1926 

Type species. Schismope brevis Hedley, 1904  (OD).

Diagnosis. Scissurellidae  with slit closed to foramen at maturity, keels of foramen not elevated to form chimney.

Remarks. In juveniles, the selenizone may be shorter and the slit is still not closed to a foramen. Juvenile Sinezona  and adult Scissurella  both have an open slit; mature specimens can be recognized by the descending last quarter whorl.