Borsoniidae

Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.
In 2011, Bouchet, Kantor et al. brought genera from the subfamilies Clathurellinae and Raphitominae, as well as genera from the subfamily Zemaciinae, together to form the family Borsoniidae. This re-arrangement was based on anatomical characters and a dataset of molecular sequences of three gene fragments

Description

This family is a rather heterogenous group, with wide-ranging varieties in their properties. The medium- to large-sized shells are fusiform to biconic in shape. Their size has a wide range. The shell can be longitudinally coarsely ribbed, but axial ribs are sometimes obsolete to absent. The smooth columella has a strong to obsolete plication upon the middle. This plication varies within genera. In the genus Cordiera there are two columellar plaits. The aperture is elliptical to oval in shape and it has a short to moderately long siphonal canal and a deep anal sinus. The anterior canal has a moderate length and is slightly twisted to the left. The thin outer lip is arcuate. The vestigial or fully developed operculum has a terminal nucleus, and may be missing in some species. The radula is absent in the genus Zemacies.

Genera

Antarctospira Kantor, Harasewych & Puillandre, 2016 Apaturris Iredale, 1917Aphanitoma Bellardi, 1875

† Asthenotoma Harris & Burrows, 1891Austroturris Laseron, 1954Awateria Suter, 1917Bathytoma Harris & Burrows, 1891
† Belatomina Powell, 1944 Belaturricula Powell, 1951
† Boettgeriola Wenz, 1943 Borsonella Dall, 1908Borsonellopsis McLean, 1971Borsonia Bellardi, 1839Cordieria Rouault, 1848Darbya Bartsch, 1934Diptychophlia Berry, 1964Drilliola Locard, 1897Filodrillia Hedley, 1922Genota H. Adams & A. Adams, 1853Glyptaesopus Pilsbry & Olsson, 1941Heteroturris Powell, 1967Maoritomella Powell, 1942Microdrillia Casey, 1903Ophiodermella Bartsch, 1944Paraborsonia Pilsbry, 1922Phenatoma Finlay, 1924
† Pseudotoma Bellardi, 1875 Pulsarella Laseron, 1954Retidrillia McLean, 2000Suavodrillia Dall, 1918Tomopleura Casey, 1904Tropidoturris Kilburn, 1986Typhlodaphne Powell, 1951Typhlomangelia G.O. Sars, 1878Zemacies Finlay, 1926

;Genera brought into synonymy :Acamptogenotia Rovereto, 1899: synonym of † Pseudotoma Bellardi, 1875 Acrobela Thiele, 1925 : synonym of Microdrillia Casey, 1903Acropota F. Nordsieck, 1977: synonym of Microdrillia Casey, 1903Boettgeria Peyrot, 1931 : synonym of Boettgeriola Wenz, 1943Boettgeriola Wenz, 1943 : synonym of Borsonia Bellardi, 1839Genotia P. Fischer, 1883 : synonym of Genota H. Adams & A. Adams, 1853Micantapex Iredale, 1936 : synonym of Bathytoma Harris & Burrows, 1891Narraweena Laseron, 1954 : synonym of Maoritomella Powell, 1942Oligotoma Bellardi, 1875 : synonym of Asthenotoma Harris & Burrows, 1891Parabathytoma Shuto, 1961 : synonym of Bathytoma Harris & Burrows, 1891Riuguhdrillia Oyama, 1951 : synonym of Bathytoma Harris & Burrows, 1891Vexithara Finlay, 1926 : synonym of Typhlomangelia G.O. Sars, 1878Viridoturris Powell, 1964 : synonym of Typhlomangelia G.O. Sars, 1878