Brucerolis victoriensis, Storey & Poore, 2009

Storey, Melissa J. & Poore, Gary C. B., 2009, New species of Brucerolis (Crustacea: Isopoda: Serolidae) from seas around New Zealand and Australia, Memoirs of Museum Victoria 66 (1), pp. 147-173 : 164-172

publication ID	https://doi.org/ 10.24199/j.mmv.2009.66.15
DOI	https://doi.org/10.5281/zenodo.12211955
persistent identifier	https://treatment.plazi.org/id/038EC15C-FFC7-6625-FCFC-FACDFC0DF8D0
treatment provided by	Felipe
scientific name	Brucerolis victoriensis
status	sp. nov.

Treatment

Brucerolis victoriensis View in CoL sp. nov.

Figures 1h View Figure 1 , 18 − 21 View Figure 18 View Figure 19 View Figure 20 View Figure 21

Material examined. Holotype: Australia, Victoria, 85 km S of Point Hicks , 38°31.41'S, 149°21.10'E to 38°30.58'S, 149°21.50'E, 1360 − 1986 m, 26 Oct 1988, G.C.B. Poore et al., RV Franklin (stn SLOPE 72 ), NMV J55376 About NMV (adult male, 34 mm). GoogleMaps

Paratypes: Australia, Tasmania, 27 nautical miles W of Sandy Cape , 41°25.39'S, 144°12.66'E to 41°23.40'S, 149°09.01'E, 1165 − 1180 m, 11 Mar 1989, FRV Soela, SAM C6809 View Materials (adult female, 31 mm) GoogleMaps ; Victoria, S of Point Hicks , 38°25.90'S, 148°58.60'E, 1850 m, 26 Jul 1986 (stn SLOPE 25 ), NMV J19212 About NMV (1 male, 1 female, 1 juvenile) GoogleMaps ; NSW, 67 km ENE of Nowra , 34°41.97'S, 151°22.44'E, 1642 − 1896 m, 22 Oct 1988 (stn SLOPE 59 ), NMV J19208 About NMV (1 male, 1 female, 4 juveniles) GoogleMaps ; Victoria, 67 km S of Point Hicks , 38°23.95'S, 149°17.02'E, 1119 − 1277 m, 25 Oct 1988 (stn SLOPE 67 ), NMV J19207 About NMV (1 male, 28 mm) GoogleMaps ; Victoria, 85 km S of Point Hicks , 38°31.41'S, 149°21.10'E to 38°30.58'S, 149°21.50'E, 1360 − 1986 m, 26 Oct 1988 (stn SLOPE 72 ), NMV J19203 About NMV (2 adult males, 30 mm), NIWA 49602 View Materials (1 male) GoogleMaps ; Victoria, 63 km S of Point Hicks , 38°22.61'S, 149°20.20'E, 1073 − 1169 m, 25 Oct 1988 (stn SLOPE 68 ), NMV J19206 About NMV (3 males, 32 mm), NIWA 49603 View Materials (2 males) GoogleMaps ; Victoria, 76 km S of Point Hicks , 38°29.33'S, 149°19.98'E, 1750 − 1840m, 26 Oct 1988 (stn SLOPE 69 ), NMV J19204 About NMV (2 males, 32 mm, 20 juveniles, 6 − 24 mm) GoogleMaps ; Victoria, S of Point Hicks , 38°30.33'S – 38°30.88'S, 149°22.98'E – 149°21.63'E, 19 Apr 2000 (stn SS01/00/172), NMV J19208 About NMV (5 males, 4 juveniles) GoogleMaps .

Other material: South Australia, Bonney Coast, Bonney Canyon , 37°52.48'S – 37°53.39'S, 139°19.75' E – 139° 20.60'E), 2010 m, 16 Feb 2008 (stn SS02/2008/PC3), SAM (5 males, 33–38 mm, 3 females, 34–36 mm, 13 juveniles, 19–30 mm) GoogleMaps .

Description of male holotype. Body length 34 mm ().Body as long as greatest width (at coxae 3). Middorsal line with small midposterior processes, barely elevated in lateral view. Head, anterolateral margins concave, lateral corners acute and projecting anteriorly (slightly); width between anterolateral corners as wide as maximum span between lateral margins of eyes; head without paired processes on transverse ridge at bases of antennae 1, with obsolete paired tubercles between eyes, with small, blunt median posterior tubercle, with obscure lobes lateral to median posterior tubercle. Pereonite 1 lateral margin anteriorly convex, straight over most of length, lateral margin upturned over anterior half, sharply crested, with sinuous high rounded oblique ridge more or less parallel to margin, separated from it by a shallow trough occupying about one-quarter of width, dorsal surface with obsolete oblique-transverse ridge reaching sinuous ridge. Coxal dorsal plate 2 slightly more than half as long as pereonal tergite 2 width (following plates increasing in length); plate 4 1.5 times as long as half pereonal tergite 4 width; plate 6 extending beyond tip of pleotelson by 2.1 times middorsal length of pleotelson, the pair diverging and then converging slightly apically, curving evenly; pleonal epimeron 2 1.9 times length of pleotelson; pleonal epimeron 3 1.1 times length of pleotelson; pleonal epimera 2 and 3 with acute apices. Ventral coxal plates 2–4 with transverse ridges on mesial, anterior and posterior margins outlining a transverse depression. Antenna 1 peduncle articles 3+4 1.9 times as long as article 2 (anterior margin); flagellum of about 50 articles. Antenna 2 peduncle article 5 similar length to article 4; flagellum of 18 articles. Pereopod 1 propodus 2.2 times as long as greatest width. Pereopod 2 palm dorsal length 1.9 times greatest width, with short right-angled heel, convex palm with 15 robust setae arranged in oval (several shorter than others). Pereopod 7 carpus 4.7 times as long as greatest width; propodus 5.6 times as long as greatest width, propodus tapering from near base, lower margin straight; dactylus curved, 0.4 times as long as propodus. Pleopod 2 endopod with convex distal margin, sharply tapering to base of appendix masculina. Uropodal exopod 1 length of endopod.

Female. Pereonite 1, lateral margin of female convex anteriorly, with distinct step-like interruption and straight posteriorly. Coxal dorsal plate 2 of female 0.6 times as long as half pereonal tergite 2 width; plate 4 of female as long as half pereonal tergite 4 width (following plates increasing in length); plate 6 of female extending beyond tip of pleotelson by 1.9 times middorsal length of pleotelson, the pair diverging and then converging slightly apically, curving evenly.

Size. Adult male and female body length: 28 − 38 mm.

Distribution. Australia, eastern and southern continental slope of NSW, Vic., Tas. and eastern SA, 34°42'S – 41°25'S, 1073 − 2010 m.

Etymology. For Victoria, the Australian state where most specimens have been taken.

Remarks. The submarginal anterolateral groove on pereonite 1, defined by its upturned margin and sharp inner ridge identify Brucerolis victoriensis . The species shares with the non-New Zealand species ( B. howensis and B. cidaris ) emarginate epimera and absence of projections on the transverse ridge of the head.