Triptychus

Triptychus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.^[2]

Triptychus
Drawing of a shell of Triptychus niveus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subcohort:	Panpulmonata
Superfamily:	Pyramidelloidea
Family:	Pyramidellidae
Genus:	Triptychus Mörch, 1875[1]
Type species
Triptychus nivea Mörch, 1875
Synonyms[2]
Pyramidella (Triptychus) Mörch, 1875

Description

The subulate shell is spirally paucilirate. The aperture is lirate within, subsinuated in front. The columella is triplicate.^[3]

Species

Species within the genus Triptychus include:^[2]

• Triptychus incantatus (Hertlein & A. M. Strong, 1939)
• Triptychus litosbathron Pimenta, Santos & Absalao, 2008
• Triptychus niveus (Mørch, 1875)
• Triptychus pacificus Corgan, 1973

Synonyms

• Triptychus olssoni (Bartsch, 1926): synonym of Triptychus incantatus (Hertlein & A. M. Strong, 1939)
• † Triptychus pliocena Bartsch, 1955: synonym of Peristichia pliocena (Bartsch, 1955) (original combination)