Paramunida labis Macpherson, 1996

Cabezas, P. E., 2010, Taxonomic revision of the genus Paramunida Baba, 1988 (Crustacea: Decapoda: Galatheidae): a morphological and molecular approach, Zootaxa 2712, pp. 1-60 : 24-25

Paramunida labis Macpherson, 1996

( Figs. 13E, 17B)

Paramunida labis Macpherson, 1996: 413 , figs 9, 24 [SW Pacific ( Futuna Island and Wallis Islands), 245–440 m]; 2004: 287 ( Fiji and Tonga, 229–443 m). — Baba 2005: 302 (key, synonymies). — Ahyong 2007: 41 , fig. 20A (Norfolk Ridge, 322–337 m). — Baba et al. 2008: 172 (list of occurrences).

Material examined. Chesterfield Islands . EBISCO. Stn DW 2521, 22º45.38’S, 159º19.041’E, 08 October 2005, 310– 313 m: 1 M 6.1 mm. — Stn DW 2619, 20º06.084’S, 160º23.544’E, 20 October 2005, 490– 550 m: 1 ov. F 8.5 mm .

Vanuatu. MUSORSTOM 8. Stn CP 971, 20°18.87'S, 169°53.12'E, 21 September 1994, 250– 351 m: 1 F 8.3 mm. — Stn CP 1025, 17°49.01'S, 168°39.37'E, 28 September 1994, 385– 410 m: 5 M 7.6–9.0 mm, 4 ov. F 8.4–8.8 mm, 5 F 7.7–9.6 mm. SANTO. Stn AT 1, 15°32.4’S, 167°16.4’E, 14 September 2006, 167– 367 m: 1 M 9.6 mm, 3 ov. F 8.7–10.4 mm, 1 F 9.6 mm. — Stn AT 18, 15°41.3'S, 167°02.6'E, 21 September 2006, 321– 336 m: 1 ov. F 11.0 mm. — Stn AT 34, 15°35.9'S, 167°17.1'E, 23 September 2006, 234– 270 m: 2 M 8.9–9.2 mm, 1 ov. F 8.0 mm, 3 F 6.5–10.2 mm. — Stn AT 48, 15°33.8'S, 167°18.9'E, 30 September 2006, 330– 341 m: 2 ov. F 7.0– 10.1 mm. — Stn AT 50, 15°36.8'S, 167°14.1'E, 30 September 2006, 140– 153 m: 1 ov. F 10.1 mm .

Fiji. MUSORSTOM 10. Stn CP 1390, 18º18.59’S, 178º05.10’E, 19 August 1998, 234– 361 m: 2 M 9.0– 10.4 mm, 1 ov. F 9.8 mm .

T onga. BORDAU 2 . Stn CP 1572, 19º42.31’S, 174º31.35’W, 11 June 2000, 391– 402 m: 2 ov. F 8.0– 8.5 mm .

Futuna Island. MUSORSTOM 7. Stn 505, 14º19.5’S, 178º04.3’W, 11 May 1992, 245– 400 m: 1 ov. F 6.9 mm (holotype, MNHN-Ga3652), 1 M 5.6 mm, 2 ov. F 8.0– 8.2 mm, 2 F 5.4–6.7 mm (MNHN-Ga3751) .

Wallis Islands. MUSORSTOM 7. Stn 612, 13°21.4'S, 176°08.9'W, 26 May 1992, 255 m: 1 M 7.0 mm, 4 F 4.1–5.6 mm (MNHN-Ga3753) .

Diagnosis. Rostrum spiniform, larger than supraocular spines, with thin dorsal carina; margin between rostral and supraocular spines straight or slightly concave. Spinules on gastric and hepatic regions usually not forming groups, lacking scaly striae and with few short uniramous setae. Mesogastric region with 3 welldeveloped spines. Median cardiac region with 3 or 4 well-developed spines. Few and short setae along anterior branch of cervical groove. Sternal plastron with some short median striae on sternite 4, and few short lateral striae on sternites 5–7. Lateral margin of antennular segment 1 with distal slender portion about half as long as proximal inflated portion. Antennal peduncle with anterior prolongation of segment 1 spiniform; segment 2 twice longer than broad, with distomesial spine mucronated and with bundle of terminal setae, slightly overreaching end of segment 3, distolateral spine not reaching end of segment 3; segment 3 twice longer than broad. Base of P1 carpus without bundle of setae. P2 propodus about 10 times as long as wide, slightly longer

Remarks. The species is closely related to P. echinata from French Polynesia. The two species can be easily differentiated by the following characters: rostrum is triangular in P. echinata , whereas it is spiniform in P. labis ; the P2–4 propodi are more than 1.5 times dactylus length in P. echinata , whereas they are slightly longer than dactyli in P. labis .

Paramunida labis also resembles P. antares n. sp. from New Caledonia. These species can be differentiated by the shape of the distomesial spine of the antennal segment 2, which is mucronated in P. echinata and spiniform in P. antares .

The genetic divergences between P. echinata and P. labis were 3.17% (16S rRNA) and 8.49% (ND1).

Distribution. Futuna Island and Wallis Islands, Fiji and Tonga, Vanuatu, Chesterfield Islands, New Caledonia and Norfolk Ridge, between 229 and 443 m.