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Tectus
''Tectus'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae. ==Description== The shell has a pyramidal shape. Its base is flat, without false-umbilicus. The rhomboidal aperture is very oblique, angular, and wider than long. The outer lip is lirate within. The columella is very short, vertical, with a strong spiral fold, ending anteriorly in a knob or point.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia )〕
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