Cardiac chamber: distended laterally; main brush of the gastric mill well-developed and apparently calcified having the zygocardiac (bearing the lateral teeth); urocardiac (bearing a strong medial tooth), mesocardiac, pterocardiac, propyloric, exopyloric and pyloric ossicles; other ossicles of lateral support are present such as, prepectinal (bearing the accessory teeth), postpectinal, lateral cardiopyloric valve and other not well-distinguished ossicles; valve cardiopyloric strong and specialized having many specified setae, hook shaped, disposed in the superior portion
The ossicles of the gastric mill are present, such as: mesocardiac, pterocardiac, zygocardiac (bearing the lateral teeth), urocardiac (bearing the tooth medial), propyloric, exopyloric and pyloric.
The zygocardiac and urocardiac ossicles supporting teeth more distinct and capable to the mastigatory processes.