Summary[edit] Description: bigclaw snapping shrimp, Alpheus heterochaelis, 28mm. Lower Chesapeake Bay, Bloxoms Corner, Hampton County, VA - 12/03/13. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Date: 13 April 2006, 01:58. Source: Alpheus_heterochaelis_(I0651). Author: Smithsonian Environmental Research Center.