A series of deep-sea expeditions in southeastern Australia has produced a considerable amount conoidean (Gastropoda: Neogastropoda) material suitable for molecular and morpho-anatomical study. Previous ongoing studies have revealed the Raphitomidae to be particularly diverse deep waters this region. Here, we continue our investigation, focussing on genera Comispira (Cochlespiridae) Leucosyrinx ...

ABSTRACT The phylogenetic position of Haloceratidae, a little-known family the subclass Caenogastropoda, is contested due to its extreme rarity in bathyal waters worldwide (c. 800–3,500 m deep). Haloceratids share several morphological and ecological traits with members Vanikoroidea, Tonnoidea, Capuloidea Velutinoidea, were provisionally included Vanikoroidea based on absence certain apomorphic...