Summary[edit] Description: hogchoker, Trinectes maculatus, 72mm SL. Chesapeake Bay, Mouth of Rhode River, Anne Arundel County, MD - 12/11/13. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Date: 11 March 2006, 23:16. Source: Trinectes_maculatus_(S0959). Author: Smithsonian Environmental Research Center.