Tunepugettia corbariae, Lee & Forges & Ng, 2019

Lee, Bee Yan, Forges, Bertrand Richer De & Ng, Peter K. L., 2019, Deep-sea spider crabs of the family Epialtidae MacLeay, 1838, from Papua New Guinea, with a redefinition of Tunepugettia Ng, Komai & Sato, 2017, and descriptions of two new genera (Crustacea: Decapoda: Brachyura: Majoidea), Zootaxa 4619 (1), pp. 1-44: 21-23

publication ID

https://doi.org/10.11646/zootaxa.4619.1.1

publication LSID

lsid:zoobank.org:pub:CA6AEB18-2F97-449C-AE34-E1509DFFC841

persistent identifier

http://treatment.plazi.org/id/03C9AC69-1E7A-FFBC-649F-FC94B0F3EEF3

treatment provided by

Plazi

scientific name

Tunepugettia corbariae
status

n. sp.

Tunepugettia corbariae   n. sp.

( Figs. 10A View FIGURE 10 , 11 View FIGURE 11 D–F, 12A–D)

Material examined. Holotype: male (31.4 × 21.2 mm) (MNHN-IU-2014-9773), stn CP4334, Ainto Bay , southeast New Britain, Solomon Sea, Papua New Guinea, 06°08’S 149°10’E, 430–620 m, coll. MADEEP Expedition, 6 May 2014 GoogleMaps   . Paratypes: 2 males (31.0 × 19.7 mm, 23.7 × 15.3 mm) ( ZRC 2018.1491 View Materials , ex. MNHN-IU- 2011-2506), stn CP3681, Vitu Islands , Papua New Guinea, 04°38’S 149°27’E, 564–712 m, coll. BIOPAPUA, 27 September 2010 GoogleMaps   .— 1 female [photographed] (35.1 × 24.1 mm) ( ZRC 2018.1492 View Materials , ex. MNHN-IU-2013-3043), stn CP4339, Ainto Bay , southeast New Britain, Solomon Sea, Papua New Guinea, 06°10’S 149°18’E, 510–743 m, coll. MADEEP Expedition, 7 May 2014 GoogleMaps   .— 1 ovigerous female (37.2 × 25.5 mm) ( ZRC 2018.1493 View Materials , ex. MNHN-IU-2013-3330), stn CP4445, New Ireland, Papua New Guinea, 02°15’S 150°17’E, 342 –380 m, coll. KAVIENG 2014, 1 September 2014 GoogleMaps   .— 1 female (29.4 × 18.2 mm) (MNHN-IU-2011-3293), stn CP3690, southeast point of Manus Island , Papua New Guinea, 02°14’S 147°16’E, 611–618 m, coll. BIOPAPUA, 29 September 2010 GoogleMaps   .— 1 ovigerous female (36.0 × 23.1 mm) ( ZRC 2018.1494 View Materials , ex. MNHN-IU-2013-3019), stn CP4338, southeast New Britain, Solomon sea, Papua New Guinea, 06°06’S 149°17’E, 410–614 m, coll. MADEEP Expedition, 7 May 2014 GoogleMaps   .— 1 female (17.0 × 10.2 mm) (MNHN-IU-2011-1584), stn CP3774, Jacquinot Bay , New Britain, Papua New Guinea, 05°35’S 151°35’E, 470–680 m, coll. BIOPAPUA, 16 October 2010 GoogleMaps   .— 1 female (19.5 × 12.6 mm) (MNHN-IU-2011-2008), stn CP3707, off the coast of Madang, Papua New Guinea, 04°59’S 145°50’E, 460–466 m, coll. BIOPAPUA, 2 October 2010 GoogleMaps   .— 1 male [photographed] (22.8 × 14.4 mm) (MNHN-IU- 2013-2352), stn CP4266, Papua New Guinea, 04°35’S 152°25’E, 575–616 m, coll. 24 April 2014 GoogleMaps   .—1 ovigerous female (36.5 × 25.2 mm), 1 female (29.1 × 19.1 mm) (MNHN-IU- 2013-15486), stn CP3964, east Malamal Passage , Papua New Guinea, 05°07’S 145°50’E, 527–539 m, coll. PAPUA NIUGINI, 30 November 2012 GoogleMaps   .— 1 male (33.1 × 23.0 mm) (MNHN-IU-2011-1526), stn CP3635, south of Lae , Gulf of Huon, Papua New Guinea, 07°29’S 147°33’E, 280–302 m, coll. BIOPAPUA, 23 August 2010 GoogleMaps   .— 1 female (23.2 × 15.3 mm) (MNHN-IU-2013-15326), stn CP4008, southeast Tuam Island , Solomon Sea, Papua New Guinea, 06°04’S 148°10’E, 500–555 m, coll. PAPUA NIUGINI, 11 December 2012 GoogleMaps   .— 1 male (15.5 × 9.6 mm) (MNHN- IU-2013-15325), stn CP3970, west Karkar Island , Bismarck Sea, Papua New Guinea, 04°39’S 145°52’E, 573 m, coll. PAPUA NIUGINI, 4 December 2012 GoogleMaps   .— 1 female (26.3 × 16.0 mm) (MNHN-IU-2013-15330), stn CP3981, north of Long Island , Bismarck Sea, Papua New Guinea, 05°11’S 147°03’E, 688 m, coll. PAPUA NIUGINI, 6 December 2012 GoogleMaps   . – 1 female (27.8 × 17.8 mm) (MNHN-IU-2013-15329), stn CP4050, west Kairiru Island , Bismarck Sea, Papua New Guinea, 03°18’S 143°27’E, 495–510 m, coll. PAPUA NIUGINI, 19 December 2012 GoogleMaps   .— 1 female with Sacculina   (26.0 × 17.2 mm) (MNHN-IU-2013-15327), stn CP4006, southeast Tuam Island , Solomon Sea, Papua New Guinea, 06°03’S 148°08’E, 440–475 m, coll. PAPUA NIUGINI, 11 December 2012 GoogleMaps   .— 1 female (30.1 × 19.7 mm) (MNHN-IU-2013-15328), stn CP3970, west Karkar Island , Bismarck Sea, Papua New Guinea, 04°39’S 145°52’E, 573 m, coll. PAPUA NIUGINI, 4 December 2012 GoogleMaps   .— 1 male (27.8 × 18.5 mm) (MNHN-IU-2013-585), stn CP3962, west Rempi area, Papua New Guinea, 04°59’S 145°51’E, 598–614 m, coll. PAPUA NIUGINI, 29 November 2012 GoogleMaps   .— 1 male (12.5 × 7.6 mm) (MNHN-IU-2011-1413), stn CP3780, Wide Bay , Papua New Guinea, 05°05’S 152°02’E, 782–1085 m, coll. BIOPAPUA, 17 October 2010 GoogleMaps   .— 1 female (10.5 × 6.6 mm) (MNHN-IU- 2014-19097), stn CP4449, New Ireland, Papua New Guinea, 02°10’S 150°11’E, 623–908 m, coll. KAVIENG 2014, 1 September 2014 GoogleMaps   .— 1 female (11.8 × 7.5 mm) (MNHN-IU-2011-907), stn CP3647, off coast of Lae , Gulf of Huon, Papua New Guinea, 06°47’S 147°12’E, 592–660 m, coll. BIOPAPUA, 25 August 2010 GoogleMaps   .

Diagnosis. Carapace pyriform, covered with layer of setae and long tufts of setae on edge of gastric region and lateral margins of carapace ( Figs. 10A View FIGURE 10 , 11D View FIGURE 11 ). Postorbital lobe flattened at side, protecting eye. Carapace regions well defined with granules on each swollen region; hepatic spine swollen basally; gastric region swollen with 3 granules, 1 granule on metagastric region, and 2 granules on lower margin of protogastric region; cardiac region with large swollen granule; lateral spine swollen basally with another granule above ( Fig. 11D, 11F View FIGURE 11 ). Antennal flagellum equal to or slightly longer than pseudorostral spines. Basal antennal article longer than broad, with blunt distal angle and convex edge. Pterygostomial region with 3 granules on outer margin ( Fig. 11E View FIGURE 11 ). Cheliped slender, propodus carinate; carpus carinate on margin; merus triangular in cross-section, carinate on all margins. Ambulatory legs covered with setae, with margins of segments carinate. Male thoracic sternum slightly depressed anteriorly; sternites 3 and 4 lateral margins constricted slightly, surface concave ( Fig. 11E View FIGURE 11 ). Male pleon triangular, all 6 somites and telson free ( Fig. 11E View FIGURE 11 ). G1 straight with distal tip composed of 2 lobes ( Fig. 12 View FIGURE 12 A–D).

Etymology. The species is named in honour of our colleague, Laure Corbari, curator of Crustacea   in the MNHN, and cruise leader of the MADEEP Expedition aboard R.V. “ Alis ”.

Coloration. Carapace and cheliped orange to pale pink; ambulatory legs white ( Fig. 10A View FIGURE 10 ).

Type locality. Ainto Bay , southeast New Britain, Papua New Guinea  

Remarks. Tunepugettia corbariae   n. sp. differs from T. sagamiensis   in the following characters: the pseudorostral spines of T. corbariae   n. sp. are not fused along the proximal third of their length ( Fig. 11D View FIGURE 11 ) (versus fused on proximal one-third to two-fifths in T. sagamiensis   ; Fig. 11A View FIGURE 11 ); the gastric region is distinctly swollen with the lateral spine swollen basally with another granule above it ( Fig. 11D View FIGURE 11 ) (versus gastric region slightly swollen with the lateral spine not swollen basally with absent of granule above in T. sagamiensis   ; Fig. 11A View FIGURE 11 ); and the G1 has the bifid angle not as strong and distinct ( Fig. 12 View FIGURE 12 A–D) (versus strong and distinct in T. sagamiensis   ; cf. Ng et al. 2017: fig. 7A–C). Tunepugettia corbariae   n. sp. is currently only known from its type locality, Papua New Guinea.