Chaunax nudviventer

Ho, Hsuan-Ching, Roberts, Clive D. & Stewart, Andrew L., 2013, A review of the anglerfish genus Chaunax (Lophiiformes: Chaunacidae) from New Zealand and adjacent waters, with descriptions of four new species, Zootaxa 3620 (1), pp. 89-111: 99

publication ID

http://dx.doi.org/10.11646/zootaxa.3620.1.4

publication LSID

lsid:zoobank.org:pub:E056EC4E-1DE6-4CC9-A53A-4CA1D03D2473

persistent identifier

http://treatment.plazi.org/id/EB238796-FFC6-FFBF-DED4-C0D6FEDFFAF1

treatment provided by

Plazi

scientific name

Chaunax nudviventer
status

 

Chaunax nudviventer  Ho and Shao, 2010

( Figure 7View FIGURE 7, Table 1)

Chaunax nudiventer  Ho & Shao, 2010: 54, figs 1 A, 2 A –C, 3, 4A –B. (Holotype: NSMT –P 95084. Paratypes: many at MNHN and NSMT; type locality: South Fiji Ridge, 26 °01.7'S, 179 °02.3'W, depth 538–620 m). Chaunax pictus  (non Lowe, 1846): Stephenson, 1971: 239 (mis-identification); Paulin et al., 1989: 135, fig 62.1, colour plate. Paulin & Stewart, 1985: 27 (listed, in part).

Chaunax  sp. C: Roberts et al. 2009: 532 (listed, in part).

Specimens examined. 10 specimens, 54–193 mm SL. New Zealand: NMNZ P.005525, 85 mm, E of northern Three Kings Rise, 30 º 45 'S, 173 º 51 'E, RNZFA Tui, stn. AUZ 0 11 0 2, 501 – 678 m, 6 Jul. 1962. NMNZ P. 031015, 79 mm, Mercury Islands, 36 º 16.27 'S, 176 º 16.02 'E, R/V Kaharoa, stn. KAH 9401 /010, 527–531 m, prawn trawl, 7 Jan. 1994. NMNZ P.033935, 56 mm, SE of Alderman Islands, 36 º 55.975 'S, 176 º 16.81 'E, F/V Drysdale, stn. DRY 9602 / 0 0 1, 395 m, bottom trawl, 18 Oct. 1996. NMNZ P.035223, 58 mm, off Raoul Island, 29 º 11.5 'S, 177 º 53.05 'W, NZOI K 830, 545 – 545 m, Jul 1974. NMNZ P.037207, 94 mm, S of Hastings, 40 º 4.4 'S, 177 º 19.3 'E, 14 Feb. 1999. New Caledonia: NMNZ P.027483, 71 mm, Seamount B, S of New Caledonia, 24 º 54.2 'S, 168 º 21.7 'E, Beryx 2, stn. 19, 510 – 519 m, bottom trawl, 30 Oct. 1991, coll. C. Roberts. NMNZ P.029205, 193 mm, paratype, Seamount B, S of New Caledonia, 24 º 55.5 'S, 168 º 21.45 'E, Beryx 11, stn. CP 7, 540 – 670 m, beam trawl, 15 Oct. 1992, coll. C. Roberts & C. Paulin. NMNZ P.029237, 3, 54– 73 mm, Seamount B, S of New Caledonia, 24 º 51.4 'S, 168 º 21.95 'E, Beryx 11, stn. 4, 550 – 920 m, trawl, 14 Oct. 1992, coll. C. Roberts & C. Paulin.

Diagnosis. Dorsal-fin rays III, 11–12 (modally 12); anal-fin rays 6–7 (7); pectoral-fin rays 13–14 (14). A member of the C. abei  -species group that differs from its congeners in having large spots on the dorsal surface; largely naked area on abdomen; relatively short head and long tail, reflected in the relatively elongated body; 3 pairs of spinules bridging lateral-line neuromasts; dermal spines on body surface simple, slender and elongate; and lateral-line neuromasts in pectoral series extending well beyond pectoral fin base. Lateral-line neuromast counts: AB = 10–12 (modally 11); BB' = 4; BD = 3–5 (4–5); CD = 5–7 (6–7); EF = 3; FG = 3–4 (3); GH = 15–19 (16–17); BI = 39–50 (41–43).

Distribution. Known from New Caledonia, South Fiji Ridge and now off northern New Zealand ( Fig. 8View FIGURE 8). Bathymetric range 282–1089 m (Ho & Shao, 2010); specimens from the present study area taken at 395– 920 m. Remarks. Five specimens collected from northern New Zealand represent the first record for the area; one of these (NMNZ P.005525) was originally reported by Stephenson (1971) as C. pictus  . It is notable that no specimens exceeding 100 mm SL were found in New Zealand waters, whereas adults attain 271 mm SL elsewhere (Ho & Shao, 2010).