Sciadonus pedicellaris Garman, 1899

Nielsen, Jørgen G., 2018, Revision of the cosmopolitan deep-sea genus Sciadonus (Teleostei, Bythitidae) with two new species, Cybium 42 (2), pp. 177-187 : 183-184

publication ID

https://doi.org/ 10.26028/cybium/2018-422-005

persistent identifier

https://treatment.plazi.org/id/03ECF34B-FFC6-DD3F-FC01-23BEDEA58637

treatment provided by

Felipe

scientific name

Sciadonus pedicellaris Garman, 1899
status

 

Sciadonus pedicellaris Garman, 1899 View in CoL

( Tab. I, Figs 1 View Figure 1 , 8-13 View Figure 8 View Figure 9 View Figure 10 View Figure 11 View Figure 12 View Figure 13 )

Sciadonus pedicellaris Garman, 1899: 172 View in CoL (type locality

Gulf of Panama).

Sciadonus kullenbergi Nybelin, 1957: 310 View in CoL (type locality off the Azores).

Leucochlamys galatheae Nielsen, 1969: 75 View in CoL (Kermadec

Trench, South West Pacific).

Leucochlamys galatheae View in CoL : Rannou et al., 1975: 1253.

Leucochlamys sp. : Nielsen et al., 1968: 247.

Sciadonus galatheae View in CoL : Nielsen and Eagle, 1974: 1071;

Nielsen, 1986: 1171; Haedrich and Merrett, 1988: 1336; Nielsen et al., 1999: 142; Nielsen and Møller, 2008: 43; Nielsen and Møller, 2015: 738.

Sciadonus kullenbergi View in CoL : Munk, 1966: 27.

Sciadonus pedicellaris View in CoL : Marshall, 1954: 232; Grey, 1956:

221; Nielsen, 1969: 63.

Sciadonus sp. : Nielsen and Eagle, 1974: 1071.

Unknown brotulid fish: Bruun, 1953: 187 (drawing). Holotype of Leucochlamys galatheae Nielsen, 1969 View in CoL .

Material examined (19 specimens, SL 44-126 mm)

MCZ 28628 About MCZ (holotype of Sciadonus pedicellaris ), SL 70 mm, female, Gulf of Panama, 5°31’N, 86°31’W GoogleMaps , R / V

Albatross, st. 3365, Agassiz trawl, 1847 m, 27 Feb. 1891. NHMG Pi. ex.1744 (holotype of Sciadonus kullenbergi ), SL 102 mm, female, off Azores , 40°32’N, 35°24’W- 40°34’N, 35°52’W, Swedish Deep-Sea Exped., st. 387, trawl, 4540- 4600 m, 7 Sep. 1948 GoogleMaps . ZMUC P77456 View Materials (holotype of Leucochlamys galatheae ), SL 84 mm, female, Kermadec Trench, Southeast Pacific, 36°31’S, 178°38’W GoogleMaps , R / V Galathea , st.663, herring otter trawl, 4410 m, 24 Feb. 1952 . ZMUC P77457 View Materials (paratype of Leucochlamys galatheae ), SL 61 mm, male – same data as for ZMUC P77456 GoogleMaps . IOM no cat.no., SL 80 mm, female, off northern Chile, 23°30’S, 71°19’W GoogleMaps , R / V Akademik Kurchatov , st. 238-A, Galathea trawl, 4880 m, 27-28 Sep. 1968 . OS 11637 , SL 118 mm, female, Northeast Pacific , 44°38.2’N, 132°10.6’W GoogleMaps , R / V Yaquina , st. TP-2, beam trawl, 3655 m, 31 May 1970 . ZMUC P77537 View Materials , SL 126 mm, female, Northeast Pacific, 44°41.1’N, 133°24.1’W GoogleMaps , R / V Yaquina , st. TP-3, beam trawl, 3784 m, 3 Jun. 1970 . OS 11636 , SL 116 mm, male, Northeast Pacific , 45°20.9’N, 126°39.7’W GoogleMaps , R / V Yaquina , st. CP-2-c, beam trawl, 2750 m, 18 Feb. 1971 . MNHN 1973-33, SL 93 mm, female, off Brittany , 47°38’N, 8°56’W GoogleMaps , R / V Jean Charcot , st. 251, trawl, 3360-3600 m, 17 Nov. 1971 . OS 11641 , SL 75 mm, female, Northeast Pacific , 44°04.3’N, 133°10.9’W GoogleMaps , R / V Yaquina , cruise Y7210A, st. TP-7, beam trawl, 3700 m, 7 Oct. 1972 . OS 11643 , SL 93 mm, female, Northeast Pacific, most sta- tion data missing, 2 Aug. 1974 . BMNH 2017.3 .17.7, SL 75 mm, female, southwest of Ireland, 49°30.1’N, 13°19.9’W GoogleMaps , R / V Challenger , st. 17-8/79 , OTSB 14 , 1750 m, 7 Jun. 1979 . NMNZ P.034545, SL 85 mm, female, Bellona Trough , New Zealand, 41°22.7’S, 166°44.4’E GoogleMaps , NZOI R / V Tangaroa , st. NZOI P0940 View Materials , trawl, depth 2092 m, 3 Apr. 1980 . NMNZ P.025244, SL 44 mm, female, Hikurangi Trough , New Zealand, 41°11.9’S, 177°19.6’E GoogleMaps , NZOI R / V Tangaroa , st. NZOI P0971 View Materials A, trawl, 2200-2328 m, 8 Jun. 1980 . BMNH 2017.3 .17.6, SL 77 mm, male, southwest of Ireland, 49°37’N, 13°48’W GoogleMaps , R / V Challenger , st. CH 51803 , OTSB 14 , 3990- 3920 m, 26 Sep. 1983 . BMNH 2017.3 .17.5, SL 78 mm, male, southwest of Madeira , 31°07’N, 25°5’12’’W GoogleMaps , R / V Discovery , st. 11261#44 , OTSB 14 , 5440 m, 1 Jul. 1985 . BMNH 2017.3 .17.4, SL 65 mm, female, southwest of Ireland, 49°02’42’’N, 16°00’34’’W GoogleMaps , R / V Discovery , st. 52403#14 , OTSB14 , 4860- 4850 m, Dec. 1986 . MNHN 2002-3876, SL 98 mm, male, Solomon Sea , 9°S, 159°49’E, Solomon 1 cruise, st. CP1754, beam trawl, 1169-1203 m, 26 Sep. 2001 GoogleMaps . ZMUC P771588 View Materials , SL 58 mm, male, Solomon Sea, 13°45’S, 156°41’E GoogleMaps , R / V Galathea 3, st. 061219-05, otter trawl, 2255-2283 m, 19 Dec. 2006 .

Diagnosis

Sciadonus pedicellaris is long, slender and compressed with protruding lower jaw and differs from all other Sciadonus species by the following combination of characters: no black pigmentation on body, dorsal fin rays 90-107, precaudal vertebrae 43-49, origin of anal fin below dorsal fin rays nos. 44-56 and below vertebrae nos. 44-49. Tissue flaps anteriorly on lower jaw well developed on most specimens.

Description

The principal meristic and morphometric characters are shown in table I. Body slender and compressed with scaleless, loose skin. Skin and peritoneum transparent showing the inner organs. Mouth horizontal with protruding lower jaw. Most specimens with a pair of distinct tissue flaps anteriorly on lower jaw (cf. Fig. 7 View Figure 7 ). Small deep-set black eyes placed above posterior third of upper jaw. Opercular spine absent. Sagittal otolith ( Fig. 10 View Figure 10 ) small, half as thick as long; sulcus undivided reaching to about middle of inner face and with wide opening at anterior rim. Origin of dorsal fin at about tip of pectoral fin; anal fin origin well behind midpoint of fish. Vertical fins joined. Pectoral peduncle about three times as long as high. Pelvic fin rays very thin and short, when present; lacking in about half of the specimens. Anterior gill arch ( Fig. 11 View Figure 11 ) with 12-15 small, knob-formed rakers each provided with 2-6 short spines and with gill filaments equal in size to rakers. Filaments on second and third gill arch twice the length of those on anterior arch. Pseudobranchial filaments not observed. Females with a pair of well-developed claspers ( Fig. 12 View Figure 12 ). Penis partly covered ventrally by the urogenital hood that ends in two small wing-like prolongations on each side of penis and a pair of probably vestigial claspers placed at each side at base of hood ( Fig. 13 View Figure 13 ). A thorough description of the holotype and paratype of the now synonymized Leucochlamys galatheae is given in Nielsen (1969: 75-78).

R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

NHMG

Goteborgs Naturhistoriska Museet

ZMUC

Zoological Museum, University of Copenhagen

IOM

Institute of Oceanology, Academy of Sciences

NMNZ

Museum of New Zealand Te Papa Tongarewa

NZOI

New Zealand Oceanographic Institute

Kingdom

Animalia

Phylum

Chordata

Order

Ophidiiformes

Family

Aphyonidae

Genus

Sciadonus

Loc

Sciadonus pedicellaris Garman, 1899

Nielsen, Jørgen G. 2018
2018
Loc

Leucochlamys galatheae

RANNOU M. & NIELSEN J. G. & HUREAU J. C. 1975: 1253
1975
Loc

Sciadonus galatheae

NIELSEN J. G. & EAGLE R. J. 1974: 1071
1974
Loc

Sciadonus sp.

NIELSEN J. G. & EAGLE R. J. 1974: 1071
1974
Loc

Leucochlamys galatheae

NIELSEN J. G. 1969: 75
1969
Loc

Leucochlamys sp.

NIELSEN J. G. & JESPERSEN A. & MUNK O. 1968: 247
1968
Loc

Sciadonus kullenbergi

MUNK O. 1966: 27
1966
Loc

Sciadonus kullenbergi

NYBELIN O. 1957: 310
1957
Loc

Sciadonus pedicellaris

MARSHALL N. B. 1954: 232
1954
Loc

Sciadonus pedicellaris

GARMAN S. 1899: 172
1899
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