Tristichotrochus

Tristichotrochus is a genus of sea snails, marine gastropod mollusks, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.

Species
Species within the genus Tristichotrochus include:
 * Tristichotrochus aculeatus (G. B. Sowerby III, 1912)
 * Tristichotrochus consors (Lischke, 1872)
 * Tristichotrochus gendalli (B. A. Marshall, 1979)
 * Tristichotrochus haliarchus (Melvill, 1889)
 * Tristichotrochus multiliratus (G. B. Sowerby III, 1875)
 * Tristichotrochus shingawaensis (Tokunaga, 1906)
 * Tristichotrochus tosaensis Kuroda & Habe, 1961
 * Tristichotrochus unicus (Dunker, 1860)

The following species were brought into synonymy:
 * Tristichotrochus amamiensis Sakurai, 1994 : synonym of Calliostoma amamiense (Sakurai, 1994) (original combination)
 * Tristichotrochus canaliculatus Sasao & Habe, 1973 : synonym of Calliostoma canaliculatum (Sasao & Habe, 1973) (original combination)
 * Tristichotrochus crossleyae (E. A. Smith, 1910) : synonym of Calliostoma crossleyae E. A. Smith, 1910 (superseded combination)
 * Tristichotrochus galea Sakurai, 1994 : synonym of Calliostoma galea (Sakurai, 1994)
 * Tristichotrochus hayamanus Kuroda & Habe, 1971 : synonym of Calliostoma hayamanum (Kuroda & Habe, 1971) (original combination)
 * Tristichotrochus ikukoae (Sakurai, 1994) : synonym of Calliostoma hayamanum (Kuroda & Habe, 1971) (original combination)
 * Tristichotrochus iris Kuroda & Habe in Habe, 1961 : synonym of Calliostoma iris (Kuroda & Habe, 1961) (original combination)
 * Tristichotrochus iwaotakii Azuma, 1961 : synonym of Calliostoma iwaotakii (Azuma, 1961)
 * Tristichotrochus katoi Sakurai, 1994 : synonym of Calliostoma katoi (Sakurai, 1994) (original combination)
 * Tristichotrochus koma Shikama & Habe, 1965 : synonym of Calliostoma koma (Shikama & Habe, 1965) (superseded combination)
 * Tristichotrochus levibasis Kuroda & Habe, 1971 : synonym of Calliostoma levibasis (Kuroda & Habe, 1971) (superseded combination)
 * Tristichotrochus margaritissimus Habe & Okutani, 1968 : synonym of Calliostoma margaritissimum (Habe & Okutani, 1968) (superseded combination)
 * Tristichotrochus mikikoae Kosuge & Oh-Ishi, 1970 : synonym of Calliostoma mikikoae (Kosuge & Oh-Ishi, 1970)
 * Tristichotrochus nakamigawai Sakurai, 1994 : synonym of Calliostoma nakamigawai (Sakurai, 1994)
 * Tristichotrochus problematicus Kuroda & Habe, 1971 : synonym of Calliostoma problematicum (Kuroda & Habe, 1971) (superseded combination)
 * Tristichotrochus sakashitai Sakurai, 1994 : synonym of Calliostoma sakashitai (Sakurai, 1994) (original combination)
 * Tristichotrochus sugitanii Sakurai, 1994 : synonym of Calliostoma sugitanii (Sakurai, 1994) (original combination)
 * Tristichotrochus takaseanus Okutani, 1972 : synonym of Calliostoma takaseanum (Okutani, 1972) (original combination)
 * Tristichotrochus tsuchiyai Kuroda & Habe, 1971 : synonym of Calliostoma tsuchiyai (Kuroda & Habe, 1971) (original combination)
 * Tristichotrochus uranipponensis Okutani, 1969 : synonym of Calliostoma uranipponense (Okutani, 1969) (original combination)