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"Nervous system of shore-crab (Carcinus manas). br., The supra-oesophageal mass; g., gullet surrounded by gr., the gullet ring; m., the sub-oesophageal mass representing a fusion of the thoracic ganglia of the crayfish, and giving off nerves to the limbs; behind it is a short strand representing the abdominal ganglia of the crayfish. a1., antennules; a2., antennae; e., eye." -Thomson, 1916

Shore Crab Nervous System

"Nervous system of shore-crab (Carcinus manas). br., The supra-oesophageal mass; g., gullet surrounded…

"Zoaea of common shore-crab (Carcinus manas). The appendages are numbered; c., gills; i., alimentary canal." -Thomson, 1916

Shore Crab Zoaea

"Zoaea of common shore-crab (Carcinus manas). The appendages are numbered; c., gills; i., alimentary…