Fig. 89. Clionolithes reptans in the shell substance of Spirifer arenosus. Oriskany sandstone 
(Lower Devonian). 
Fig. 90. A shell of the brachiopod Streptorhynchus with borings of Clionolithes canna Price. 
From the Potts ville series (Mississippian). 
Fig. 91. Clionolithes canna Price. Conemaugh series (Mississippian). Much enlarged. 
Fig. 92. Clionolithes palmatus in the shell substance of the bivalve Loxopteria clispar from 
the Portage beds (Upper Devonian). 
Fig. 93. A similar palmate boring in a gastropod shell, Loxonema, from the same locality. 
