Family Calliostomatidae Calliostoma yucatecanum Dall, 1881 Depressed top snail - 8 mm Shell with relatively low spire. Sculpture of spiral cordlets, 10-12 spiral on last whorl, 3-4 on periphery, 10 on base. Umbilicus deep. Color light brownish- or yellowish-cream, with large flamules of darker color.
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