Definitions

See: Carapace region h [Martin, 2005]
Most posterior median region of the dorsal carapace, sometimes with intestinal spine(s). [Poore, 2004]
The most posterior of the mesial areas on the carapace of crabs, bounded anteriorly by the cardiac region and laterally by the branchial regions. [Chace and Hobbs, 1969]
The region on the dorsal surface of the carapace bounded by the posterior margin of the carapace and parts of the margins of the cardiac and metabranchial regions. [Ingle, 1983]
(Taxon-specific: Order Decapoda) See: Carapace regions h [McLaughlin, 1980]
(Taxon-specific: Order Decapoda) Unpaired region at posterior end of carapace. Adjoined anteriorly by cardiac region.
(syn. posterior cardiac lobe) [Stachowitsch, 1992]