Iotyrris


Iotyrris is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.

Taxonomy

The genus Iotyrris was synonymized with Xenuroturris in 2024 following a comprehensive phylogenetic revision of the family Turridae. Iotyrris had originally been distinguished from Xenuroturris based on radular morphology; while species of Xenuroturris were characterized by "duplex" marginal radular teeth, those assigned to Iotyrris possessed "semi-enrolled" marginal teeth.
However, molecular analyses utilizing exon-capture data demonstrated that these radular traits were homoplastic and not consistent with the phylogeny. The study found that species possessing duplex teeth fell into the same well-supported clade as species with semi-enrolled teeth. Because the radular morphology was found to lack diagnostic value at the generic level, Iotyrris was reduced to a synonym of Xenuroturris.

Distribution

This marine genus occurs in the Western Pacific Ocean and off Australia.

Species

Species within the genus Iotyrris include:Iotyrris cerithiformis Iotyrris cingulifera Iotyrris conotaxis Abdelkrim, Aznar-Cormano, Buge, Fedosov, Kantor, Zaharias & Puillandre, 2018Iotyrris devoizei Kantor et al., 2008Iotyrris kingae Iotyrris marquesensis Sysoev, 2002Iotyrris musivum Kantor et al., 2008Iotyrris notata