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Atlanta inclinata attains a large maximal size (to 6-7 mm), and the adult shell is clear to light yellow. The keel is moderately elevated, with a rounded to slightly truncated leading edge. The spire consists of about 5 whorls and is globose (or beehive shaped). The internal walls of the spire are decalcified. The spire surface bears small, low tubercles (or punctae) that are usually scattered but sometimes can form irregular spiral lines. The inner surface of the spire has radially-arranged lines (as in A. tokiokai). The innermost whorl adjacent to the umbilicus is rounded and has a low and wide, but nearly indistinct, ridge. Eyes type b, operculum type c, and radula type II. The radula is large, with a growth angle of about 16°, and the number of tooth rows are limited to about 60. The lateral teeth are monocuspid, and the rachidian teeth are about 20% wider than in A. tokoikai. The species has a cosmopolitan distribution in tropical to subtropical waters.


  • Shell diameter to 6-7 mm
  • Adult shell clear to light yellow
  • Keel moderately elevated with a rounded to slightly truncate leading edge
  • Spire tilted relative to shell plane and consists of about 5 whorls
  • Spire shape globose or beehive shaped
  • Internal spire walls decalcified
  • Outer surface of spire whorls with small, low punctae that are scattered or form irregular spiral lines
  • Inner surface of spire with radially-arranged lines
  • Innermost whorl adjacent to umbilicus rounded, with wide and low ridge
  • Eyes type b
  • Operculum type c
  • Radula type II
  • Radula large, with a growth angle of about 16°
  • Number of tooth rows in radula limited to about 60
  • Lateral teeth monocuspid
  • Rachidian teeth about 20% wider than in A. tokiokai


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