The occurrence of Ectinochilus Cossmann, 1889 (Gastropoda; Strombidae) in New Zealand, with the description of two new Eocene species

摘要

Two new species of the Tethyan gastropod genus Ectinochilus from the Bortonian (Middle Eocene) of south Canterbury, South Island, New Zealand are described: E. rrisfragmentum n. sp. and E. antipodarum n. sp. The possible modes of dispersal of this genus are briefly discussed in relation to the known occurrence of species of the genus.