Maeandropolydora crassa Bromley et D’Alessandro, 1987

Diagnosis. Abundantly branched, large, cylindrical boring system in lithic substrates, the internodes straight., curved or sharply bent. At some sharp bends, a cylindrical continuation flattens out to become a small pouch. Many short,curved side branches end blindly. The wall of the borings is granular, scattered with minute protuberanches (in cast), exept in the slender terminations of blind branches, with normally are smooth. Boring diameter varies somewhat in individual networks. Apertures circular and numerous.