Belongs within: Clavatulidae. Eosurcula: a brief explosion Published 24 April 2024 The Claiborne Formation is an extensive accumulation of clays and sandstones extending across the southeastern USA, with outcrops in Arkansas, Illinois, Kentucky and Texas. It formed during the middle Eocene, over a series of rapid marine transgressions followed by slower regressions (Eargle 1968). The… Continue reading Eosurcula


Belongs within: Turridae. Deep sea divergence Published 19 February 2024 I have often had cause before to remark on the taxonomic morass that is represented by the assemblage of gastropods historically referred to as the ‘Turridae’. Recent decades have seen this family undergo multiple revisions, as more modern methods have confirmed what was long suspected,… Continue reading Cryptogemma


Pseudomelatoma‘s mysterious teeth Published 27 December 2023 In many older texts, you will find members of the gastropod superfamily Conoidea referred to as the ‘Toxoglossa’. This name, meaning ‘poison tongue’, was inspired by the modification of their radula to deliver a powerful hit of venom to knock out prey. In its most derived form, the… Continue reading Pseudomelatoma

Marginella (Glabella)

Shining margins Published 1 November 2023 Perhaps the first thing to be noticed about the margin snails of the Marginellidae is how shiny they are. Next is likely to be how brightly they are coloured; even those species where the shell is largely white are typically strikingly patterned. Margin shells must surely be among the… Continue reading Marginella (Glabella)


Belongs within: Buccinoidea. Neptunea is a genus of large whelks with a high spire and short to medium-long siphonal canal found in northern temperate and Arctic regions. Shells have a prominent spiral sculpture but weak or no axial sculpture (Kantor et al. 2022). <==Neptunea Röding 1798 [incl. Chrysodomus Swainson 1840]KF22 |–+–*N. antiqua (Linnaeus 1758)BR17, KF22,… Continue reading Neptunea


Belongs within: Conidae.Contains: Conus (Plicaustraconus), Conus (Stephanoconus), Conus (Strategoconus), Conus (Turriconus), Conus (Dauciconus), Conus (Floraconus), Conus (Splinoconus), Conus (Rhizoconus), Conus (Pionoconus), Conus (Textilia), Conus (Phasmoconus), Conus (Virroconus), Conus (Lividoconus), Conus (Virgiconus), Conus (Lautoconus), Conus (Leptoconus), Conus (Darioconus), Conus (Cylinder). Conus, the cone shells, is a genus of cone-shaped predatory gastropods in which the radula has… Continue reading Conus

Categorised as Conidae


Belongs within: Muricidae. Murex is an Indo-Pacific genus of marine gastropods with shells bearing three spinose varices and a long siphonal canal. In most species there are numerous long spines on the siphonal canal though M. brevispina bears short spines on the basal half of the canal only (Wilson 1994). Characters (from Wilson 1994): Siphonal… Continue reading Murex

Categorised as Muricidae


Belongs within: Buccininae. Buccinum is a genus of whelks found in colder waters of both hemispheres. The type species is the common whelk B. undatum of the northern Atlantic which is widely harvested for food. The shell of B. undatum is sculpted with thick, waved folds crossed by prominently incised spiral lines. Characters (from Oldroyd… Continue reading Buccinum


Belongs within: Volutoidea. Voluta is a genus of more or less large volutes found in the tropics of the West Atlantic with a solid, ovate to elongate-ovate shell. <==Voluta Linnaeus 1758 [Volutidia, Volutini]BR05 |–*V. musica Linnaeus 1758BR17 |–V. aculeataH86 |–V. aethiopica Linnaeus 1758L58 |–V. amphora Lightfoot 1786K65 |–V. anguria Lightfoot 1786K65 |–V. attenuataH86 |–V. aulicaB42… Continue reading Voluta

Categorised as Volutoidea


Belongs within: Marginellidae.Contains: Marginella (Glabella), Marginella (Volvarinella). The Marginellini are a group of margin shells characterised by the complete loss of the buccal mass including the radula. In the genus Volvarina, the shell has a low to moderate spire, the outer lip is moderately varixed with a smooth inner margin, and the inner lip bears… Continue reading Marginellini