Eosiphonidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021

Harzhauser, Mathias & Landau, Bernard M., 2024, The Colubrariidae, Eosiphonidae, Melongenidae, Pisaniidae, Prodotiidae and Tudiclidae (Gastropoda, Buccinoidea) of the Miocene Paratethys Sea, Zootaxa 5427 (1), pp. 1-110 : 19

Family Eosiphonidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021

Diagnosis. “ Shell medium-sized to large, from slightly over 10 mm to 100 mm, from ovate to narrowly fusiform. Siphonal canal from nearly absent (Thermosipho) to long ( Manaria ). Protoconch small, often eroded, paucispiral when known, with less than two whorls. Spire whorls usually evenly convex, rarely shouldered mainly due to axial sculpture. Axial sculpture either absent (Thermosipho and ‘ Aulacofusus ’ hiranoi) or represented by very weak to strong ribs or wide, rounded folds. Spiral sculpture (except Thermosipho with smooth shell) of distinct cords of uneven strength, breadth and density. In Eclectofusus sculpture forms a reticulated pattern due to the intersection of narrow axial ribs and broadly spaced spiral cords. Aperture ovate or elongate, with smooth inner and outer lip, or bearing labral tooth ( Preangeria )”. ( Kantor et al. 2022: 810).