Taxonomy Search:

Amathina pacei
Image courtesy of The Jacksonville Shell Club at
Amathina pacei
Taxonomic Group: Mollusks-Gastropods


Amathina pacei is a small limpet-like marine gastropod, which lives as an ecosymbiont on bivalves such as scallops and thorny oysters. It was first collected and described in 1979 from Biscayne Bay, Florida. It is thought to be native to the Indo-Pacific, where it has a very similar congener Amathina tricarinata. Little details are known about its life history and potential impacts. It may live on bivalves as an ectocommensal, feeding on attached sponges, or as an ectoparasite, sucking body fluids from its host. It typically positions itself near the exhalent opening of its hosts’ shell and rarely moves.

This is some default tab content, embedded directly inside this space and not via Ajax. It can be shown when no tabs are automatically selected, or associated with a certain tab, in this case, the first tab.


Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
Access Date:

Marine Invasions Lab
Smithsonian Environmental Research Center

P.O. Box 28
647 Contees Wharf Road
Edgewater, MD 21037-0028 Tel: 443 482 2200
Fax: 443 482 2380

Databases Overview| Chesapeake Bay | National Database |