{{Automatic taxobox | taxon = Clathurellidae | image = Etrema bicolor 001.jpg | image_caption = Two shells of Etrema bicolor | authority =H. Adams & A. Adams, 1858 | synonyms_ref = | synonyms = | subdivision_ranks = Genera | subdivision = See text }} Clathurellidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Clathurellidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153873 on 15 August 2011. Taxonomy 2005 taxonomy In the taxonomy of the Gastropoda by Bouchet & Rocroi (2005) Clathurellinae was classified as a subfamily of Conidae. 2011 taxonomy In 2011 Bouchet, Kantor et al. brought some genera from the subfamily Clathurellinae (at that point belonging to the family Conidae) in a new family, Clathurellidae. This was based on anatomical characters and a dataset of molecular sequences of three gene fragments. Description Species in this family have small to medium-sized fusiform shells that have strong sculpture. The apex is mammillary. The anal sinus is varicose, and touches the sutural ramp. The columella is tuberculated posterior, rugose in front. It lacks columellar pleats. The siphonal canal is slightly curved, and varies in length between short to moderately long (as in Glyphostoma rostrata). The operculum is always absent in this family. The family Clathurellidae appears to differ from the family Mangeliidae principally in its more rounded whorls and cancellate sculpture. Genera Genera within the family Clathurellidae include: Acrista Hedley, 1922 Adanaclava Bartsch, 1950 Clathurella Carpenter, 1857 Comarmondia Monterosato, 1884 - synonyms: Bellardia Bucquoy, Dautzenberg & Dollfus, 1883; Bellardiella P. Fischer, 1883; Bellatula Strand, 1929 Corinnaeturris Bouchet & Warén, 1980 Crockerella Hertlein & Strong, 1951 Etrema Hedley, 1918 - synonym: Iraqetrema Dance & Eames, 1966 Etremopa Oyama, 1953 Etremopsis Powell, 1942 Euclathurella Woodring, 1928 Euglyphostoma Woodring, 1970 Glyphostoma Gabb, 1873 Glyphostomops Bartsch, 1934 Lienardia Jousseaume, 1884 Nannodiella Dall, 1919 Paraclathurella Boettger, 1895 Pleurotomoides Bronn, 1831 Pseudoetrema Oyama, 1953 Strombinoturris Hertlein & Strong, 1951 Turrella Laseron, 1954 Genera brought into synonymy Bellardia Bucquoy, Dautzenberg & Dollfus, 1883: synonym of Comarmondia Monterosato, 1884 Bellardiella P. Fischer, 1883: synonym of Comarmondia Monterosato, 1884 Bellatula Strand, 1929: synonym of Comarmondia Monterosato, 1884 Clathromangilia: synonym of Clathromangelia Monterosato, 1884 Iraqetrema Dance & Eames, 1966: synonym of Etrema'' Hedley, 1918 References External links H. S. Ladd. 1982. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Volutidae through Terebridae). United States Geological Survey Professional Paper 1171:1-100