Pyrgulina is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae. General description The whorls of the teleoconch are sculptured similarly throughout. Varices are absent. The shell is marked with strong axial ribs which extend from the summit to the umbilical area The spiral markings consist of impressed lines. The fine, incised spiral striations are subequally spaced and present at the intercostal spaces between the sutures and on the base of the whorls. Species Species within the genus Pyrgulina include: Pyrgulina adducta Peñas & Rolán, 2017 Pyrgulina affinis Laseron, 1959 Pyrgulina altiminima Peñas & Rolán, 2017 Pyrgulina alveata (A. Adams, 1861) Pyrgulina alveatoides (Nomura, 1938) Pyrgulina amabilis Saurin, 1959 Pyrgulina anacra Saurin, 1959 Pyrgulina angustacostae Peñas & Rolán, 2017 Pyrgulina anodyna Peñas & Rolán, 2017 Pyrgulina archetypum Peñas & Rolán, 2017 Pyrgulina arfica (Bartsch, 1915) Pyrgulina arguta Peñas & Rolán, 2017 Pyrgulina bantama van Aartsen & Corgan, 1996 Pyrgulina bertae Peñas & Rolán, 2017 Pyrgulina bifariam Peñas & Rolán, 2017 Pyrgulina brenda (A. Adams, 1860) Pyrgulina buriti Saurin, 1961 Pyrgulina butoli Saurin, 1961 Pyrgulina caledonica Peñas & Rolán, 2017 Pyrgulina calendalis Saurin, 1959 Pyrgulina cambodgiensis Saurin, 1961 Pyrgulina canalicia Peñas & Rolán, 2017 Pyrgulina carbonellae Peñas & Rolán, 2017 Pyrgulina carmeloi Peñas, Rolán & Sabelli, 2020 Pyrgulina casta (A. Adams, 1861) Pyrgulina cataplexis Peñas & Rolán, 2017 Pyrgulina cheveyi Saurin, 1959 Pyrgulina circumducta Peñas & Rolán, 2017 Pyrgulina clatrorum Peñas & Rolán, 2017 Pyrgulina collectitia Peñas & Rolán, 2017 Pyrgulina colligata Peñas & Rolán, 2017 Pyrgulina columna (Laseron, 1959) Pyrgulina comacum Melvill, 1910 Pyrgulina conciliata Peñas & Rolán, 2017 Pyrgulina concinna (A. Adams, 1860) Pyrgulina condensa Peñas & Rolán, 2017 Pyrgulina condita Peñas, Rolán & Sabelli, 2020 Pyrgulina congressa Peñas & Rolán, 2017 Pyrgulina congruens Peñas & Rolán, 2017 Pyrgulina consimilis (A. Adams, 1861) Pyrgulina consobrina (A. Adams, 1861) Pyrgulina corpuslevis Peñas & Rolán, 2017 Pyrgulina cumstantes Peñas & Rolán, 2017 Pyrgulina dactyliformis Peñas & Rolán, 2017 Pyrgulina deambulans Peñas & Rolán, 2017 Pyrgulina debiliformis Peñas & Rolán, 2017 Pyrgulina decussata A. Adams, 1863 Pyrgulina densecostata (Garrett, 1873) Pyrgulina diductacostae Peñas & Rolán, 2017 Pyrgulina difficilis Saurin, 1958 Pyrgulina diffidenter Peñas & Rolán, 2017 Pyrgulina dilata Peñas & Rolán, 2017 Pyrgulina dimidia Peñas & Rolán, 2017 Pyrgulina dimidiata (Schander, 1994) Pyrgulina disposita Peñas & Rolán, 2017 Pyrgulina dissensionis Peñas & Rolán, 2017 Pyrgulina