Theta (gastropod)

Theta is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.

Species
Species within the genus Theta include:
 * Theta baiocchii Nappo & Pellegrini, 2021
 * Theta chariessa (Watson, 1881)
 * Theta lyronuclea (Clarke A.H., 1959)
 * Theta microcostellata Criscione, Hallan, Puillandre & Fedosov, 2021
 * Theta polita Criscione, Hallan, Puillandre & Fedosov, 2021
 * Theta spicea (Watson, 1881)
 * Theta vayssierei (Dautzenberg, 1925)
 * Species brought into synonymy:
 * Theta chrysoplex (Barnard, 1963) : synonym of Gymnobela chrysopelex (Barnard, 1963)
 * Theta lanceata (Dall, 1927) : synonym of Gymnobela lanceata Dall, 1927
 * Synonyms:
 * Theta lanceata (Dall, 1927) : synonym of Gymnobela lanceata Dall, 1927