Oratosquilla calumnia (Townsley 1953)

Oratosquilla calumnia (Townsley, 1953)

Squilla nepa.—Brooks, 1886, p. 25 [part, specimen from Hawaii only; not S. nepa Latreille].

Squilla calumnia Townsley, 1953, p. 410, figs. 8–9.—Manning, 1968a, p. 135 [listed].

Squilla oratoria.—Kemp, 1913, p. 68 [part, specimens from Hawaii only].—Edmondson, 1921, p. 287, fig. 1a.—Bigelow, 1931, p. 183.—Townsley, 1953, p. 404, figs. 2–3 [not Squilla oratoria De Haan].

MATERIAL.—1 , 26 mm; Hilo Dock, Hilo, Hawaii; night light; Territory of Hawaii Division of Fish and Game; 24 August 1948; holotype; USNM 93097.—1 , 89 mm; Hilo, Hawaii; Albatross; 1901; USNM 64909.—1 damaged , CL 35.0 mm; Honolulu; Albatross; 1901; USNM 64908.—1 , 175 mm; estuary, Oahu, Honolulu; R. A. Kinzie III; USNM 125051.

DIAGNOSIS.—Rostral plate as long as or slightly longer than broad, apex usually rounded; eye large, cornea set obliquely on stalk, corneal indices 391–500; anterior width of carapace about half median length; median carina of carapace entire, bifurcation opening anterior to dorsal pit, distance from pit to bifurcation less than distance from bifurcation to anterior margin; raptorial claw with 6 teeth, dorsal ridge of carpus of claw bituberculate, inferodistal angle on outer face of merus with blunt tooth; mandibular palp and 4 epipods present; lateral process of fifth thoracic somite produced into an anterior spine and a slender posterior spine, directed laterally; lateral process of sixth thoracic somite bilobed, anterior lobe rounded; lateral process of seventh thoracic somite bilobed, anterior lobe angled, occasionally sharp; lateral carinae of abdomen not bicarinate; abdominal carinae spined as follows: submedian (3) 4–6, intermediate 1–6, lateral 1–6; telson lacking supplementary dorsal tubercles; telson denticles 3–4, 6–8, 1; proximal segment of uropodal exopod less than 1.5 times as long as distal segment; inner spine of basal prolongation of uropod with rounded lobe on outer margin, proximal margin of lobe concave.

COLOR.—Posterior 3 thoracic and all abdominal somites each with dark posterior line; second abdominal somite with rectangular patch of dark chromatophores medially; distal half of proximal segment and inner half of distal segment of uropodal exopod dark; distal half of endopod dark.

MEASUREMENTS.—Only male examined, TL 26 mm; females, TL 89–175 mm. Specimens ranging from 120–200 mm in length have been recorded in the literature. Other measurements of female, TL 175 mm: carapace length 36.5; anterior width of carapace 18.4; cornea width 7.7; rostral plate length 5.6, width 5.4; telson length 33.5, width 32.6.

DISTRIBUTION.—Pacific Ocean, where it has been recorded from the Hawaiian Islands and Guam.