Mathildidae is a family of small sea snails, marine gastropod molluscs in the superfamily Mathildoidea of the informal group of the Lower Heterobranchia.

General characteristics

(Original description) These shells recall Bittium and Turritella. They feature a blunt apex upon which a small, heterostrophic, Adeorbis-shaped protoconch is set on its edge, often tilting to one side of the axis. The operculum is reported to be multispiral and externally concave, while the soft parts of the animal are externally quite similar to those of Turritella.The dentition of the group, however, remains unknown. .

Distribution

This group is abundantly represented in the Eocene Tertiary of the Paris Basin. A few recent species are widely distributed, including two or three that inhabit the Mediterranean.

Genera

Genera within the family Mathildidae include:

• † Acrocoelum Cossmann, 1888

• † Angulathilda Gründel & Nützel, 2013

• † Bandelthilda Gründel, 1997

• † Bathraspira Cossmann, 1906

• Brookesena Finlay, 1926

• † Carinathilda Gründel, 1997

• † Echinimathilda Sohl, 1961

• † Eomathilda H. J. Finlay & Marwick, 1937

• † Erratothilda Gründel, 1997

• Fimbriatella Sacco, 1895

• † Gymnothilda M. Schröder, 1995

• † Jurilda Gründel, 1973

• † Lemniscolittorina Sohl, 1961

• Mathilda Semper, 1865

• † Pseudalaria Hudleston, 1889

• † Pseudotuba Harzhauser & Landau, 2023

• † Tangarilda Gründel, 2010

• † Teretrina Cossmann, 1912

• † Toulminella Bieler & Dockery, 2007

• † Tricarilda Gründel, 1973

• Tuba Lea, 1833

• Turritellopsis G. O. Sars, 1878

• † Valsantia Ludbrook, 1957

• † Veterator Laws, 1944

• Genera brought into synonymy:

• Eucharilda Iredale, 1929: synonym of Mathilda Semper, 1865

• Fimbriatella Sacco, 1895: synonym of Mathilda Semper, 1865

• Gegania Jeffreys, 1884: synonym of Tuba Lea, 1833

• Granulicharilda Kuroda & Habe in Kuroda, Habe & Oyama, 1971: synonym of Mathilda Semper, 1865

• Mathildona Iredale, 1929: synonym of Mathilda Semper, 1865

• Opimilda Iredale, 1929: synonym of Mathilda Semper, 1865

References

• Rudiger Bieler, Mathildidae from New Caledonia and the Loyalty Islands (Gastropoda: Heterobranchia); 1995, Mémoires du Museum national d'Histoire naturelle, Paris

• Jensen, R. H. (1997). A Checklist and Bibliography of the Marine Molluscs of Bermuda. Unp., 547 pp

External links

• Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979