2.65. Pouch borings
Remark: Shallow to deep boring with elongate outline and rounded base.
Diagnosis. —Shallow to deep, elongate borings in lithic substrates; rounded ends and parallel, slightly convex, or slightly concave sides in plan view; rounded bottoms in longitudinal and transverse section; sides parallel or slightly divergent down wards in deeper specimens; length up to 30 mm; several times as long as wide.