According to RAINEY (1981), the stomach of D. coriacea has two distinct parts: a globular anterior chamber and a tubular
posterior segment, which is partly subdivided into smaller chambers by about twelve transverse ridges. His description
differs from our findings: in the specimens we analyzed, three distinct regions were identified in the stomach: the cranial region with longitudinal mucosal folds, the middle region with thick wall formed by large transverse folds, and the distal region without a folds pattern. The longitudinal folds probably allow the free passage of food items through the lumen, where
it can be restricted by transverse or oblique folds (PARSONS & CAMERON 1977).