Bioacoustics of Ciliopagurus vakovako

DIAGNOSIS. — Ocular peduncles 0.60-0.77 times as long as shield (average 0.70). Distal segment of antennular peduncle 0.21-0.31 times as long as shield (average 0.27). Ocular acicles with 3-5 terminal spines, usually 4. Chelipeds equal; outer face of chelae with 3 complete transverse striae, 1 proximal striae interrupted near ventral margin of the palm and 2 short striae situated in ventral half between striae 1-2 and 2-3. These striae are smooth or with minute spinules. Chela 0.74-0.94 times as long as shield (average 0.84); ratio of height to length 0.60-0.98 (average 0.74); fingers 0.44-0.63 times as long as chela (average 0.54). Stridulating area with 4 distinct areas composed of parallel corneous crests; distal area the largest with 8-11 distally rounded or acute crests; 6th to 8th crest longest, about 0.50 times as long as stridulating area. Merus of cheliped without prominent tubercle on ventral surface. Dactyl of third ambulatory leg 0.90-1.16 times as long as propodus (average 1.07). Posterior lobes of telson subequal to moderately asymmetrical with 2-4 inconspicuous spines on terminal margins. COLORATION ( Fig. 1C ). — Antennular and antennal peduncles reddish-orange, flagella cream; ocular peduncles and ocular acicles reddish-orange, cornea black. Chelipeds ( Fig. 3C ) and ambulatory legs ( Fig. 4C ) with bright red rings alternating with narrower yellow rings. Chelipeds ( Fig. 3 ) with red rings disposed on meri, carpi, and palms of chelae; fingers of chelae uniformly pale orange. Ambulatory legs ( Fig. 4C ) with red rings on meri, carpi and propodi; dactyls uniformly pale orange, terminal claws black. Shield cream with some light orange mottling on posterior half. Abdomen red, striped with undulating transverse, almost parallel yellow lines.