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 CUonoUthes canna Price. 



From the Pottsville series (Mississippiaii). 



Fig. 91. CUonolithes canna Price. Conemaugh series (Mississippian). Much enlarged. 

 Fig. 92. Clionolitlies palmatiis in the shell substance of the bivalve Loxopteria dinpar from 



the Portage beds (Upper Devonian). 

 Fig. 93. A similar palmate boring in a gastropod shell, Loxonema, from the same locality. 



