Macrothea Macpherson and Cleva, 2010: 63 [type species: Macrothea bouchardi Macpherson and Cleva, 2010. Gender: feminine].
Carapace clearly longer than broad; dorsal surface devoid of distinct striae, with some scattered short or long setae; spines only on epigastric and hepatic regions; lateral margins with some spines. Rostrum triangular, with 4 strong lateral teeth on each side. Telson well-developed, completely subdivided. Endopod of uropod longer than broad; dorsal surfaces of endopod and exopod of uropods with some articulated spines. Basal antennular segment with 3 distal spines. P1–4 stout, spinose and setose. P2–4 dactyli curved inward distally, biunguiculate, with a well-developed claw on flexor margin. P5 chela with setae moderate in density on flexor face, without brush of plumose setae, fingers more setose, setae simple, not ribbon-like. G1 and G2 present.
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