Parupeneus jansenii (Bleeker, 1856)

Uiblein, Franz, Hoang, Tuan Anh, Alama, Ulysses, Causse, Romain, Chacate, Osvaldo E., Fahmi, Garibay, Soledad & Matiku, Patroba, 2018, A new species and new records of goatfishes of the genus Parupeneus (Mullidae) from the Indian Ocean, with updated occurrence information for P. jansenii in the Western Pacific, Cybium 42 (3), pp. 229-256 : 245-249

Parupeneus jansenii (Bleeker, 1856)

Jansen’s goatfish

( Figs 1 , 2 , 6 ; Tab. V)

Upeneus jansenii Bleeker, 1856 (type locality off Manado , Sulawesi).

Parupeneus sp. 1 : Gloerfelt-Tarp and Kailola, 1984: 212-

213.

Parupeneus jansenii : Uiblein et al., 2017b; Koeda et al.,

2018: 328-329.

Syntypes. – RMNH 5748 , 2 specimens, 76-91 mm SL , WP, Indonesia, Sulawesi, Manado .

Non-type material. – (n = 8, 98-153 mm SL) WP, Japan, Kochi, Shikoku Island, Iburi: BSKU 69440, 100 mm SL, Iburi fishing port, Tosashimizu City; FAKU 67872, 98 mm SL; FAKU 70398, 110 mm SL; Philippines, Iloilo, Miag-ao fish market: UPVMI 2259 114 mm SL, UPVMI 2260, 110 mm SL, UPVMI 2261, 106 mm SL, UPVMI 02263, 119 mm SL, UPVMI 2265, 99 mm SL; Additional non-type specimens examined from Vietnam, Indonesia, and Australia (n = 27, 68-159 mm SL) listed in Uiblein et al. (2017b).

Photographs. – (n = 3, 85-153 mm SL): HIFIRE F58448, 85 mm SL, EIO, Myanmar, 14°23.33’N- 93°23.83’E , R / V Dr. Fridtjof Nansen , survey no. 2013409, station 47, 22 Nov. 2013, bottom trawl, 75 m depth (unvouchered fresh colour photo by Oddgeir Alvheim , Fig. 1H ) ; NTM S.11018-002, 104 mm SL, Indonesia, south of Sumatra, near Sunda Strait, 06°07’S- 104°39’E (vouchered fresh colour photo in Gloerfelt-Tarp and Kailola (1984: 212); WP, Philippines: USNM 56131, 153 mm SL, Luzon, Bulan , Sorsogon (photograph of preserved specimen).

Diagnosis

Pectoral fins 14-16; gill rakers 5-7 + 19-23 = 26-29; lateral-line scales 27; measurements in % SL, large-sized fish: body depth at first dorsal-fin origin 23-26; body depth at anus 19-22; caudal-peduncle depth 8.1-9.0; maximum head depth 22-24; head depth through eye 19-21; interorbital length 8.1-10; head length 31-34; snout length 14-16; postorbital length 11-13; orbit length 5.7-7.9; upper jaw length 12-15; barbel length 21-25; caudal-peduncle length 21-24; caudal-fin length 25-27; anal-fin height 12-14; pelvic-fin length 20-22; pectoral-fin length 21-25; first dorsal-fin height 17-20; second dorsal-fin height 11-14; small-sized fish: body depth at first dorsal-fin origin 22-26; body depth at anus 18-22; caudal-peduncle depth 7.8-9.0; maximum head depth 20-24; head depth through eye 18-21; interorbital length 8.1-9.7; head length 31-34; snout length 13-15; postorbital length 11-13; orbit length 6.8-7.8; upper jaw length 11-14; barbel length 21-26; caudal-peduncle length 21-24; caudal-fin length 25-29; anal-fin height 12-14; pelvic-fin length 21-23; pectoral-fin length 22-24; first dorsal-fin height 17-19; second dorsal-fin height 11-14; posterior maxilla margin evenly, symmetrically rounded; body and head rose, pink, or vermilion, colour may become paler below lateral line and eye; scale edges darker; body silvery white ventrally; one yellow-orange mid-lateral stripe sometimes visible from behind operculum along lateral line; caudal fin red or dark orange along proximal exterior sides of lobes, the remaining parts orange-yellowish to hyaline; dorsal fins and anterior part of pelvic fins pale red or pale orange; anal fin crossed by weakly indicated red-greenish stripes; barbels white or rose to red at basis, tips white; preserved fish pale or pale brown to pale grey, head or dorsal body and head margin sometimes darker.

Distribution, depth range, and size

Parupeneus jansenii occurs in the WP and EIO in the area ranging from Myanmar, NE Indian Ocean (new record) to Vietnam, Japan (new record for Shikoku Island; northernmost record of the species), Philippines (new record for central Philippines), and NE Australia; depth range 24-100 m; attains at least 159 mm SL.

Remarks

Based on the added material examined in this study, the data of 13 meristic and morphometric characters listed in the diagnosis required adjustments compared to the previous account by Uiblein et al. (2017b).

In addition to the intraspecific population- and size-relat- ed differences for specimens from the area between Vietnam, Indonesia, and Australia reported in Uiblein et al. (2017b), the single large-sized specimen from Japan shows slightly shorter barbels, and a shorter seventh anal-fin ray compared to similar-sized specimens of the other populations ( Tab. V). The two small-sized specimens from Japan have a slightly deeper caudal peduncle and a slightly shorter anal-fin spine ( Tab. V).

The single specimen from Myanmar (measurements based on the photograph only) overlaps in all obtained characters with the other populations ( Fig. 6 ; Tab. V). This new record of P. jansenii for the NE Indian Ocean does not come as a big surprise, after P. jansenii had already been reported from the Sunda Strait ( Randall, 2004), an adjacent area of the East Central Indian Ocean. Moreover, since the study of Uiblein et al. (2017b), it is evident that P. jansenii is much more widely distributed and more common than was earlier assumed. Also, all other morphologically similar species sharing a narrow caudal peduncle ( P. minys , P. nansen , and P. angulatus ) are known from the WIO only. They can be distinguished by a combination of characters from P. jansenii (see subsection Interspecific Comparisons further below and Fig. 6 ).

The photo of the Myanmar specimen ( Fig. 1H ) weakly indicates a colour pattern to occur on the caudal fin consisting of three red spots, one on each lobe, and one on the fin base. Randall and Heemstra (2009) mentioned a very similar pattern to occur in P. nansen and gave it diagnostic value for this species. Photos of four additional fresh P. jansenii from Indonesia and Japan published in Gloerfelt-Tarp and Kailola (1984: 212, as Parupeneus sp. 1 ) and in Koeda et al. (2018: 328-329) all show this colour pattern. Two colour photos of P. jansenii from Australia and Vietnam published in Uiblein et al. (2017b: Fig. 3B, D; p . 547) also show a similar colour pattern. Consequently, we have not considered this char-

Parupeneus jansenii is relatively common at fish markets in south-central

Vietnam (e.g. Nha Trang) and central

Philippines (e.g. southern Iloilo). From

Indonesia, the most recent record from fish markets or landing sites is based on a single specimen from southern Bali

( Uiblein et al., 2017b).

Parupeneus nansen Randall &

Heemstra, 2009

Nansen goatfish

( Figs 1 , 6 ; Tab. VI)

Parupeneus nansen Randall &

Heemstra, 2009 (type locality off southern Mozambique) .

Parupeneus nansen : Uiblein et al.,

2017b.

H o l o t y p e. – SAIAB 81380,

122 mm SL, WIO, Mozambique,

24°33.7’S- 35°15.6’E, R / V Dr. Fridtjof

Nansen, 50-51 m depth

Paratype. – SAIAB 81683 ,

130 mm SL, WIO, Mozambique,

18°39.6’S- 37°03.3’E, R / V Dr. Fridtjof

Nansen, 37 m depth.

Non-type material. – SAIAB

86973, 141 mm SL, WIO, Tanzania,

Chwaka Bay Landing Site, Zanzibar,

6°7.77’S- 39°27.97’E, 10 m depth.

Diagnosis

Pectoral fins 15-16; gill rakers 6-7

+ 20 = 26-27; lateral-line scales 27-28;

measurements in % SL: body depth at first dorsal-fin origin 24-27; body depth at anus 18-21; caudal-peduncle depth

8.5-8.9; maximum head depth 24; head depth through eye 20-21; interorbital length 8.0-8.9; head length 33-34; snout length 16-17; postorbital length 12; orbit length 6.6-7.1; upper jaw length 13-15;

barbel length 23-26; caudal-peduncle length 21; caudal-fin length 28-29; analfin height 13; pelvic-fin length 21-23;

pectoral-fin length 22-24; first dorsal-fin height 18-19; second dorsal-fin height

12-13; maxilla posterior margin evenly,

symmetrically rounded; body pale yel-

Figures

Figure 1. – A-C: Holotype of Parupeneus inayatae n. sp., MZB 24565, 150 mm SL, SE Lombok, Indonesia; A: Fresh (side reversed; William T. White); B: Preserved left body side; C: Right body side (side reversed); D: P. fraserorum, SAIAB 81744, 133 mm SL, off Mozambique (Phil C. Heemstra); E: P. procerigena, SAIAB 84075, 114 mm SL, Nazareth Bank (Oddgeir Alvheim); F: P. heptacanthus HIFIRE VP 216-14, 154 mm, off Myanmar (Oddgeir Alvheim); G: P. nansen, SAIAB 86973, 141 mm SL, Zanzibar, Tanzania (Gavin Gouws and Monica Mwale); H: P. jansenii, HIFIRE F 58 448, 85 mm SL, Myanmar (unvouchered photograph; Oddgeir Alvheim); I: P. jansenii, UPVMI 2260, 110 mm SL, Iloilo, Central Philippines (Ulysses Alama). Scale bars = 20 mm.

Figure 2. – Standard length against total length in Parupeneus jansenii; greydotted lines: reference lines for TL and the determined SL for the Myanmar specimen; black dashed lines: reference lines for delimitation of small- and large-sized fish

Figure 3. – Standard length against four morphometric characters and total number of gill rakers against barbel length in Parupeneus inayatae n. sp. vs. P. heptacanthus and P. seychellensis. In P. heptacanthus the two size size groups and three populations are distinguished.

Figure 6. – Standard length against four morphometric characters, head length against anal-fin spine height, and total number of gill rakers against caudal-peduncle length in Parupeneus jansenii vs. P. nansen. In P. jansenii the two size groups are distinguished.