Munida compacta Macpherson, 1997

McCallum, Anna W., Ahyong, Shane T. & Andreakis, Nikos, 2021, New species of squat lobsters of the genus Munida from Australia, Memoirs of Museum Victoria 80, pp. 113-152 : 139-141

Munida compacta Macpherson, 1997

Figure 17A–C

Munida compacta Macpherson, 1997: 605–606 , fig. 2 (type locality: Kei Islands , Indonesia). — Baba et al., 2008: 90 .

Munida andamanica . — Poore et al., 2008: 19. — McEnnulty et al., 2011: app. 1, 2.

Material examined. Queensland. AM P89035 , 2 ovigerous females (pcl 11.7–13.5 mm), east of Cape York , 10° 29.810' S, 144° 01.380' E, 596 m , RV Franklin , FR0688-02, 20 August 1988 . Western Australia . AM P72138 , 1 ovigerous female (cl 26.5 mm, pcl 19.7 mm), 240 km north-west of Port Hedland , 18° 06'S, 117° 45' E, 500 m , RV Soela , S02/82/31, coll. J. Paxton, 7 April 1982 ; NMV J56402 , 1 male (cl 14 mm, pcl 7.0 mm), Onslow L19 transect, 20° 07.962'S, 114° 58.71'E to 20° 07.584' S, 114° 58.416'E, 415–470 m, SS05/2007/15, 11 June 2007 ; NMV J56409 , 4 females (cl 18.8 mm, pcl 11.6 mm; cl 26.5 mm, pcl 18.0 mm), Dampier L20 transect, 19° 43.548' S, 115° 20.604' E to 19° 43.764' S, 115° 21.144' E, 415–428 m, SS05/2007/28, 12 June 2007 ; NMV J56414 , 1 male (cl 14.5 mm, pcl 7.8 mm), SS05/2007/28 ; NMV J56408 , 1 male (cl 17.9 mm, pcl 11.3 mm), Hedland L22 transect, 18° 34.194' S, 117° 27.864' E to 18° 34.062' S, 117° 28.626' E, 401–405 m, SS05/2007/52, 14 June 2007 ; NMV J55266 , 1 female (cl 13.5 mm, pcl 8.5 mm), Imperieuse L23 transect, 17° 21.492' S, 118° 57.312' E to 17° 20.88' S, 118° 56.802' E, 437–446 m, SS05/2007/56, 15 June 2007 ; NMV J56412 , 2 males (cl 24.7 mm, pcl 16.5 mm; cl 25.0 mm, pcl 16.6 mm), SS05/2007/56 ; NMV J56411 , 3 males (cl 15.7 mm, pcl 9.5 mm to cl 18.0 mm, pcl 11.2 mm), 1 ovigerous female (cl 27.3 mm, pcl 18.1 mm), Imperieuse L23 transect, 17° 31.734' S, 118° 50.61' E to 17° 32.508' S, 118° 50.352'E, 403–407 m, SS05/2007/57, 15 June 2007 ; NMV J56426 , 1 female (cl 14.4 mm, pcl 7.6 mm), SS05/2007/57 ; NMV J55260 , 3 ovigerous females (cl 23.9 mm, pcl 16.0 mm to cl 25.9 mm, pcl 24.0 mm), Imperieuse L23 west transect, 17° 31.044' S, 118° 51.162'E to 17° 31.716'S, 118°50.742'E, 405–406 m,SS05/2007/64, 16 June 2007 ; NMV J55265 , 1 male (cl 12.4 mm, pcl 7.5 mm), SS05/2007/64 ; NMV J55990 , 1 female (18.9 mm, pcl 13.4 mm), 1 juvenile (cl 9.5 mm, pcl 8.4 mm), SS05/2007/64 ; NMV J56406 , 1 male (cl 11.5, pcl 10.5 mm), SS05/2007/64 ; NMV J56410 , 1 ovigerous female (cl 24.5 mm, pcl 16.7 mm), Leveque L27 transect, 14° 50.814' S, 121° 26.436' E to 14° 50.94' S, 121° 28.164' E, 382–401 m, SS05/2007/102, 26 June 2007 ; NMV J56080 , 8 males (cl 19.9 mm, pcl 14.7 mm to cl 26.7 mm, pcl 16.9 mm), 3 females (cl 21.9 mm, pcl 14.8 mm to cl 25.7 mm, pcl 18.3 mm), Leveque L27 transect, 14° 51.198' S, 121° 25.878' E to 14° 50.724' S, 121° 27.012' E, 396–403 m, SS05/2007/144, 2 July 2007 ; NMV J56081 , 2 females (cl 20.6 mm, pcl 12.6 mm; cl 22.4 mm, pcl 15.1 mm), 1 juvenile (cl 14.9 mm, pcl 9.2 mm), Ashmore L30 transect, 12° 28.884' S, 123° 25.062' E to 12° 29.958' S, 123° 25.002' E, 397–405 m, SS05/2007/189, 6 July 2007 ; NMV J55994 , 4 ovigerous females (cl 22.4 mm, pcl 15.1 mm to cl 23.5 mm, pcl 15.6 mm), 1 female (cl 24.1 mm, pcl 16.3 mm), 3 males (cl 19.6 mm, pcl 12.9 mm to cl 24.4 mm, pcl 16.3 mm), Ashmore L30 transect, 12° 31.77' S, 123° 25.638' E to 12° 30.828' S, 123° 25.362' E, 401–404 m, SS05/2007/192, 6 July 2007 ; NMV J55051 , 1 female (cl 14.4, pcl 9.0 mm), Barrow Island , 21° 00.402' S, 114° 22.86' E to 21° 00.042' S, 114° 22.5' E, 399–408 m, SS10/2005/172, 13 December 2005 .

Colour. Carapace and abdominal somites 2–4 pale orange/ pink. Rostrum red, supraocular spines white or red and white on distal half. P1 pale orange/pink with white fingers, P2–4 pale orange on meri and carpi, white on propodi, dactyli white with red tips.

Genetic data. COI and 16S; see Table 1.

Remarks. Munida compacta is very close to M. rubridigitalis Baba, 1994 , and M. julumunyju sp. nov. from eastern and western Australia, respectively, and M. rhodonia , from New Caledonia. These species can be distinguished by:

- the dactylus of P2 is similar in length (0.8–1.0) to the propodus in M. compacta and distinctly shorter (0.8) in M. rhodonia

- chelipeds with well-developed spines on the dorsal face of the palm in M. compacta , which are instead very small in M. rhodonia .

While the length of the distomesial spine of the P1 merus was used to differentiate these species (Baba, 1997), we found that that the length of this spine varied in our specimens of M. compacta and did not always overreach the midlength of the carpus. Also, the P2 dactylus in M. compacta is described as clearly shorter than the propodus, but in our specimens, the P2 dactylus was 0.8–1.0 times the propodus length.

The sequences of M. compacta from north-western Australia and M. rhodonia from New Caledonia were 1.2% divergent for COI and 0.2% divergent for 16S.

The present specimens represent the first confirmed records of M. compacta from Australia.

Distribution. Indonesia, Kei Islands, 246– 694 m. Queensland and Western Australia, 397– 470 m.

Figures

Figure 17. A–C, Munida compacta Macpherson, 1997, female, dorsal view and lateral (NMV J56409), female 18.9 mm, pcl 13.4 mm (NMV J55990); D, Munida endeavourae Poore and Ahyong, 2004, ovigerous female, cl 21.7 mm, pcl 13.9 mm (NMV J55052); E, Munida gordoae Macpherson, 1994 (NMV J56420). Photos: K. Gowlett-Holmes, CSIRO.