Infra corpus comitatus

INFRA CORPUS COMITATUS. Within the body of the county.
     2. The common law courts have jurisdiction infra corpus comitatus; the admiralty, on the contrary, has no such jurisdiction, unless, indeed, the tide water may extend within such county. 5 Howard's U. S. Rep. 441, 451.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.