Definitions
Thoracic ganglion
- (Taxon-specific: Subclass Branchiura) One in a series of four partially fused ganglia of thorax region. Innervates thoracic appendage (thoracopod). Adjoined anteriorly to subesophageal ganglion and posteriorly to abdominal ganglion to form six-lobe mass in anterior region of thorax. [Stachowitsch, 1992]