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Dorsal-Ventral Axis

The dorsal-ventral axis runs from the top to the bottom of the crab. Dorsal refers to the top of the crab when viewed from above (strictly speaking “dorsal” means back). Ventral refers to the bottom of the crab when viewed from above (the part against the ground).

The dorsal-ventral axis, when viewed from the anterior (front) of the crab. Figure modified from Crane (1975). image
The dorsal-ventral axis, when viewed from the anterior (front) of the crab. Figure modified from Crane (1975).
View of the dorsal surface of the crab. Figure modified from Crane (1975). image
View of the dorsal surface of the crab. Figure modified from Crane (1975).
View of the ventral surface of the crab. Figure modified from Crane (1975). image
View of the ventral surface of the crab. Figure modified from Crane (1975).