A novel and enigmatic two-holed shell aperture in a new species of suspension-feeding worm-snail (Vermetidae)
Shell aperture modifications are well known in terrestrial and aquatic gastropods, with apertural lip thickening and tooth development common in species with terminal (determinate) shell growth. In contrast, secondary shell openings are rare in snails and are largely limited to slit shells, keyhole...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
PeerJ Inc.
2019-02-01
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Series: | PeerJ |
Subjects: | |
Online Access: | https://peerj.com/articles/6569.pdf |