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(Miers, 1882)

Diagnosis:
Frontal horns with two dorsal teeth. Anterior margin of carapace with several sharply pointed small teeth between small spiniform rostrum and frontal horns. Carapace behind cervical groove with spines. Four or five transverse grooves on second to fifth abdominal somites, not all reaching to base of pleura, and some interrupted dorsally.
Indo-West Pacific species.

Type:
Type locality: Mauritius, "in a fishing-net at a depth of 40 fathoms" (= 73 m). Holotype male, in BM, no 81.12 (dry, condition fair).

Geographical Distribution:
Indo-West Pacific region: Western Indian Ocean (Mauritius, Réunion), Hawaiian Archipelago. Larvae supposed to be of this species have been reported from the Philippines, the Gilbert Islands and Tahiti.

Habitat and Biology:
Depth range from 30 to 200 m. The species seems to prefer rocky or coral substrates.

Size:
Maximum total body length 16 cm, carapace length 6 cm; average carapace length 4 to 5 cm.

Interest to Fisheries:
The species is not actively fished for. Experimental fishing with lobster pots and trammel nets near Réunion resulted in small catches. Its small size, apparent scarcity and habitat (rough bottom and relatively great depth) make it an unlikely subject for a fishery.

Gibbon furrow lobster (Justitia mauritiana)