SHORT
DESCRIPTION
Rostrum triangular, reaching near end of first antennular article. Orbital hoods lacking frontal spine. Large chela 2.3 times as long as broad. Superior margin of chela proximal to dactyl transversely grooved, proximal edge overhanging. Groove extending on inner palm as shallow triangular depression, on outer palm as marked quadrangular depression. Inferior margin of chela deeply notched opposite superior groove. Cheliped merus bearing an acute tooth distally on internal margin. Small chela sexually dimorphic, in male - balaeniceps. Ischium of third pereopod bearing prominent spine.
color :
carapace and abdomen greyish-green, abdomen with seven longitudinal rows of white spots, tips of pleura with a white spot. Tail fan proximally pale, distally bluish with brown setae. Antennulae, antennae bluish grey. Chelipeds bluish grey, finger tips brown. Pereopods pink.
common size :
TL 4 cm.
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DISTINGUISHING CHARACTERISTICS
Large cheliped merus armed with spine distally on internal margin, inner lip of notch on upper surface of chela overhanging. Orbital hoods unarmed, autochthonous species with large grooved chela have spinose orbital hoods.
BIOLOGY / ECOLOGY
Poorly known.
habitat :
living in burrows among rock and rubble in shallow water; intertidal to 25 m.
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