Definitions
Subesophageal mass
- (Taxon-specific: Order Tanaidacea) Concentration of nerve tissue below (posterior to) esophagus. Connected to supraesophageal ganglion by pair of esopha-geal connectives. Consists of ganglia of mandibles, maxillules, maxillae, maxillipeds, and chelipeds. Continues posteriorly as ventral nerve cord. [Stachowitsch, 1992]