Ropalonaria

Ropalonaria venosa encrusting Rafinesquina. 15 mm scale bar. CMC 27666.
Species
Ropalonaria venosa Ulrich
Occurrence: Arnheim, Waynesville, Liberty
Reference: Pohowsky, 1978; Anstey and Wilson, 1996
Forms borings in shells; sometimes misspelled Rhopalonaria venosum