Turcica

For the process of the Sphenoid bone in the human skull, see Sella Turcica.

Turcica is a genus of sea snails, marine gastropod mollusks in the family Eucyclidae.^[2]

Turcica
Drawing with an apertural view of a shell of Turcica monilifera
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Family:	Calliotropidae
Genus:	Turcica H. Adams & A. Adams, 1854 [1]
Type species
Turcica monilifera A. Adams, 1854
Synonyms
Ptychostylis Gabb, 1865

Kano et al. (2009) have argued that Turcica belongs in the family Calliotropidae.^[3]

Description

The thin, subdiaphanous, imperforate shell has a conoidal shape. The whorls display transverse series of granules, the last rounded on the periphery. The thick columella is spirally twisted posteriorly, ending anteriorly in an obtuse, prominent point. The thin outer lip is simple and acute.^[4]

Distribution

The genus ranges on both shores of the Pacific, from California and Australia northward.

Species

According to the World Register of Marine Species (WoRMS) the following species are included within the genus Turcica :

• Turcica admirabilis Berry, 1969
• Turcica caffea (Gabb, 1865)
• Turcica imperialis A. Adams, 1854
• Turcica monilifera A. Adams, 1854

Species brought into synonymy

• Turcica (Perrinia) Adams, 1854: synonym of Perrinia H. Adams & A. Adams, 1854
• Turcica coreensis Pease, 1860: synonym of Turcica monilifera A. Adams, 1854
• Turcica helix Barnard, 1964: synonym of Herpetopoma helix (Barnard, 1964)
• Turcica instricta A. Adams 1864: synonym of Herpetopoma instrictum (Gould, 1849)
• Turcica konos Barnard, 1964: synonym of Perrinia konos (Barnard, 1964)
• Turcica salpinx Barnard, 1964: synonym of Clypeostoma salpinx (Barnard, 1964)
• Turcica stellata A. Adams, 1864:^[5] synonym of Perrinia stellata (A. Adams, 1864)
• † Turcica (Perrinia) waiwailevensis Ladd, 1982: synonym of Herpetopoma xeniolum (Melvill, 1918)