Lysiosquilla tredecimdentata Holthuis 1941

Lysiosquilla tredecimdentata Holthuis, 1941

Lysiosquilla tredecimdentata Holthuis, 1941, p. 273, fig. 6; 1967, p. 23 [references].—Manning, 1968a, p. 38, fig. 13.

MATERIAL.—1 ♂, 138 mm; Durban, Natal, South Africa; 7–8 May 1937; Herre, col.; USNM.

DIAGNOSIS.—Rostral plate cordiform, broader than long, with median carina; antennal scale more than 3 times as long as wide, outlined in black; claw lacking prominent dark bars, dactylus with 10–13 teeth, dorsal tooth of carpus deflexed mesioventrally; ventral keel of 8th thoracic somite produced into a posteriorly directed spine; basal segment of uropod lacking spine at articulation of endopod.

DISTRIBUTION.—Western Indian Ocean, from Aden, Madagascar, and now South Africa.

Lysiosquilla tredecimdentata Holthuis, 1941

Lysiosquilla maculata.—Kemp, 1913:111, pl. 8: figs. 87–89 [part].—Chopra, 1934:28 [part ?; material not listed] [not L. maculata (Fabricius, 1793)].

Lysiosquilla maculata var. tredecimdentata Holthuis, 1941: 273, fig. 6.

Lysiosquilla tredecimdentata.—Holthuis, 1967:23 [synonymy].—Manning, 1968:38, fig. 13 [description]; 1969:6.

?Lysiosquilla maculata.—Alikunhi, 1967:904, figs. 158–167 [postlarval development] [not L. maculata (Fabricius, 1793)].

MATERIAL.—Coconada, South India; G. W. Wicks, don.: 5 , TL 72–132.5 mm; 3 , TL 106–186 mm (ZSI 3517–19/7 and 3528–31/7). Madras, India; 2 , TL 138–144 mm (ZSI 3630–31/7). Andaman Islands: 1 fragmented (ZSI 3044/5). No data: 1 , TL 91 mm (ZSI 3037/5).

All of these specimens were identified as L. maculata by Kemp (1913).

DIAGNOSIS.—Rostral plate (Figure 13a) cordiform, broader than long, with median carina on anterior third. Antennal protopod (Figure 13a) with triangular anterior projection above articulation of antennal peduncle. Antennal scale (Figure 13a) slender, length at least 3 times greatest width. Scale outlined by dark pigment. Dactylus of raptorial claw (Figure 13d) with 10–13, usually 12–13, teeth. Dorsal tooth of carpus of claw deflexed mesioventrally. Ventral keel of eighth thoracic somite (Figure 13b) produced into posteriorly directed spine. Sixth abdominal somite and telson (Figure 13f) smooth or slightly wrinkled dorsally. Basal segment of uropod occasionally armed with small spinule ventrally at articulation of endopod (unarmed in Figure 13e), apex of endopod dark.

DISTRIBUTION.—Now known with certainty from localities in the western Indian Ocean, from the Red Sea southward to South Africa, eastward to southern India and the Andaman Islands. It may be expected to have a much wider distribution than now recognized.