Carapace much longer than broad; dorsal surface glabrous and rather evenly convex laterally. Median frontal tooth conical in dorsal view, with lateral borders very weakly convex, exceeding level of external orbital spine; supraorbital border cut into two teeth by two narrow slit-like gutters; inner one sharp and directed obliquely outward, and distal half of outer one is also spiniform and nearly reaches to level of external orbital spine. An anterolateral spine sharp and directed obliquely outward. Chelipeds slender; a spine at inner distal end of ischium; carpus with two spines arranged side by side at subdistal part of upper surface; palm with a terminal spine on upper border and five spines on lower border; movable finger with a spinule at proximal part of upper border. In first three ambulatory legs anterior border of each carpus and both borders of propodi and dactyli sharply crested; posterior border of propodus of third pair strongly produced to form a high lobe.
Distribution:
Previously known only from the type-locality, east of the Mississippi Delta, Louisiana, 120 m deep.