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Updated 8/26/2025

Family Pyramidellidae

Pyramid Shells

Pyramid shells are represented in Hawaii by many species less than 1/2 inch in length; only a few grow larger.  They are parasites that feed upon worms or bivalve mollusks, and are most abundant in eutrophic waters.

 

CIRCUMTROPICAL / HAWAII

Pyramidella dolabrata

RINGED PYRAMID

 

  

INDO-PACIFIC / HAWAII

Turbonilla varicosa

SWOLLEN PYRAMID

 

 Longchaeus maculosus

 

SPOTTED PYRAMID