Definitions
Circumesophageal nerve ring
- (Taxon-specific: Class Ostracoda) Well-developed ring of nerve tissue surrounding esophagus; consists anteriorly of supraesophageal ganglion, laterally of circumesophageal connective, and posteriorly of complex formed by subesophageal ganglion and more or less concentrated central nerve cord. [Stachowitsch, 1992]