III.—Characters of the genus Opisthoporus, an Eastern form of the Cyclostomacea, with remarks on its affinities and notes on several opercula

W H Benson

Published in Annals And Magazine of Natural History, in 1855, in volume 15, pages 13-17

Date published:1855

DOI: 10.1080/037454809495383
BHL: 2257103
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