Pyramidellinae

Pyramidellinae is a taxonomic subfamily of minute sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

Taxonomy
It is one of eleven recognised subfamilies of the marine gastropod family Pyramidellidae (according to the taxonomy of Ponder & Lindberg, 1997), which are as follows: Odostomiinae, Turbonillinae, Chrysallidinae, Cingulininae, Cyclostremellinae, Sayellinae, Syrnolinae, Eulimellinae, Pyramidellinae, Odostomellinae and Tiberiinae.

2005 taxonomy
In the taxonomy of Bouchet & Rocroi (2005), this subfamily consists of the following tribes, adding the tribe Sayellini containing only two genera Sayella and Petitella.


 * Tribe Pyramidellini Gray, 1840
 * Tribe Sayellini Wise, 1996 - former subfamily Sayellinae

Genera
According to Schander, Van Aartsen & Corgen (1999) there are 12 genera within the Pyramidellinae:

tribe Pyramidellini tribe Sayellini
 * Callolongchaeus Dall, 1903 : synonym of Longchaeus Mörch, 1875
 * Creonella Wade, 1917
 * Lacrimiforma Sohl, 1963
 * Locklinia Bartsch, 1955
 * Longchaeus Mörch, 1875
 * Milda Dall & Bartsch, 1904
 * Otopleura Fischer, 1885
 * Pharcidella Dall, 1889 : synonym of Longchaeus Mörch, 1875
 * Pyramidella Gray, 1840 - type genus of the tribe family Pyramidellidae
 * Triptychus Mörch, 1875
 * Urambella Laseron, 1959 : synonym of Pyramidella Lamarck, 1799
 * Voluspa (gastropod) Dall & Bartsch, 1904 ;: synonym of Longchaeus Mörch, 1875