Barathronus diaphanus Brauer, 1906

Nielsen, Jørgen G., 2019, Revision of the circumglobal genus Barathronus (Ophidiiformes, Bythitidae) with a new species from the eastern North Atlantic Ocean, Zootaxa 4679 (2), pp. 231-256: 241-243

publication ID

https://doi.org/10.11646/zootaxa.4679.2.2

publication LSID

lsid:zoobank.org:pub:A3A1CEE3-DA6D-4CF8-B529-7200B987C51F

DOI

http://doi.org/10.5281/zenodo.3797793

persistent identifier

http://treatment.plazi.org/id/0A6687ED-8B21-D17E-FF0B-FF673AB8FE29

treatment provided by

Plazi

scientific name

Barathronus diaphanus Brauer, 1906
status

 

Barathronus diaphanus Brauer, 1906  

Table 1. Figs. 2 View FIGURE 2 , 10–12 View FIGURE 10 View FIGURE 11 View FIGURE 12

Barathronus diaphanus Brauer, 1906: 305   (type locality: 2°58.8’N, 47°6.1’E).

Barathronus diaphanus: Weber 1913: 551   ; Beaufort & Chapman 1951: 406; Nielsen 1969: 44; Nielsen et al. 1999: 138; Nielsen & Møller 2008: 39.

Material examined ( 24 specimens, SL 54-130 mm). Holotype: ZMB 17699 View Materials (SL 117, female), off Somalia, 2°58.8’N, 47°6.1’E, RV Valdivia, st. 259, trawl, 1289 m, 28 Mar. 1899. Non-types: ZMA 104.467 View Materials (SL 59 mm, female), off Timor, 10°48.6’S, 123°23.1’E, RV Siboga, st. 300, trawl, 918 m, 30 Jan. 1900. ZSI 1050/1 (SL 65 and 70 mm, 2 females), Andaman Sea, 13°29’30’’N, 95°29’E, RV Investigator, St. 310, Agassiz trawl, 1756 m, 5 Nov. 1902. HKFRS- uncatalogued (SL 92 mm, male), South China Sea, 19°40’N, 115°30’E, RV Cape St. Mary, cr. 1/64, st. 26, Agassiz trawl, 732–796 m, 7 Jan. 1964. MNHN 2019-0035 View Materials (SL 113 mm, female), off Northwest Madagascar, 12°27’S, 48°10’E, RV Vauban, trawl 22, 680– 700 m, 19 Jan. 1972. MNHN 2019—0031 View Materials - 34 View Materials (4 spms., SL 100–110 mm, 4 females), off Southeast Madagascar, 22°16.9’S, 42°56’E, RV Vauban, Crosnier coll., trawl 109, 1500 m, 30 Nov. 1973. MNHN 2019-0036 View Materials (SL 115 mm, male), off Northwest Madagascar, 13°04’S, 47°51.5’E, RV Vauban, trawl 134, 1865– 2030 m, 21 Jan. 1975. MNHN 2002-3134 View Materials (SL 85 mm, male), Coral Sea, 19°54’S, 158°37’58.8’’E, RV Coriolis/Musorstom 5, dw337, 412– 430 m, 15 Oct. 1986. MNHN 1995-0913 View Materials (SL 95 mm, female), off Vanuatu, 18°51’S, 168°55’1.2’’E, RV Alis/Musorstom 8, cp1007, 720– 830 m, 25 Sep. 1994. MNHN 1995-0919 View Materials (SL 54 mm, male), off Vanuatu, 15°48’S, 167°24’E, RV Alis/Musorstom 8, cp1074, 775– 798 m, 4 Oct. 1994. MNHN 1995- 0914 View Materials (SL 96 and 104 mm, 2 males), off Vanuatu, 14°49’1.2’’S, 167°15’E, RV Alis / Musorstom 8, cp1110, 1360 m, 8 Oct. 1994. MNHN 2004-0924 View Materials (SL 72 mm, female), off Fiji Is., 17°09’S, 177°55’58.8’’E, RV Alis / Musorstom 10, cp1331, 694– 703 m, 8 Aug. 1998. MNHN 2004-0925 View Materials (SL 88 mm, male), off Fiji Is., 17°03’S, 177°46’58.8’’E, RV Alis / Musorstom 10, cp1335, 729– 753 m, 9 Aug. 1998. MNHN 2015-0052 View Materials (SL 112 mm, male), Tonga, 23°28’S, 176°22’W, RV Alis / Bordau 2, st. cp 1625, 824 m, 19 June 2001. MNHN 2006-0699 View Materials (SL 65 mm, male), Solomon Isls., 9°0’21.6’’S, 159°4’15.6’’E, RV Alis / Salomon 2, cp2175, 579– 585 m, 21 Oct. 2004. ZMUC P 771585 View Materials (SL 96 mm, female), Solomon Sea , 13°45’S, 156°41’E, RV Galathea 3, st. 0611219-05, otter trawl, 2255–2283 m, 19 Dec. 2006, ZMUC P 771586 View Materials (SL 112 mm, female), Solomon Sea , 7°25’S, 155°44.7’E, RV Galathea 3, st. 061227-01, 1.2 m Agassiz trawl, 1012–1094 m, 27 Dec. 2006. NSMT-P 111903 (SL 130 mm, female), Ryukyu Is., 25°19.992’N, 125°24.912’E to 25°20.354’N, 125°26.659’E, RV Tansei-maru , beam trawl, 1927– 1901 m, 30 Nov. 2012. MNHN 2016-0166 View Materials (SL 110+ mm, female), Mahajanga, Madagascar, 15°31’S, 45°42’E, MOZ1 _CP4, beam trawl, 806 m, 9 Oct. 2014. GoogleMaps  

Diagnosis. Barathronus diaphanus   differs from the other five species of the genus with dark-pigmented peritoneum by the following combination of characters: dorsal-fin rays 58–73, anal-fin rays 48–61, long rakers on anterior gill arch 25–35, precaudal vertebrae 30–35, total vertebrae 66–75, vomer with 1–5 fangs, paired bulbs at basis of penis not developed, no ventral flexure of anteriormost vertebrae. Ripe males with rather thick penis. Newly-caught specimens bright red, preserved specimens light-brownish with dark-blue peritoneum. Otolith ( Fig. 11 View FIGURE 11 ) similar to that of B. bicolor   ( Fig. 8 View FIGURE 8 ).

Description. For a detailed description see Nielsen (1969: 44). The principal meristic and morphometric characters are shown in Table 1.

Comparisons. For a comparison to the very similar species, B. bicolor   , see page 6.

Distribution ( Fig. 2 View FIGURE 2 ). From Madagascar to Japan and Tonga ls. at depths of 579–2030 m.

ZMB

Museum für Naturkunde Berlin (Zoological Collections)

RV

Collection of Leptospira Strains

ZMUC

Zoological Museum, University of Copenhagen

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Ophidiiformes

Family

Aphyonidae

Genus

Barathronus

Loc

Barathronus diaphanus Brauer, 1906

Nielsen, Jørgen G. 2019
2019
Loc

Barathronus diaphanus: Weber 1913: 551

Nielsen, J. G. & Moller, P. R. 2008: 39
Nielsen, J. G. & Cohen, D. M. & Markle, D. F. & Robins, C. R. 1999: 138
Nielsen, J. G. 1969: 44
Beaufort, L. F. De & Chapman, W. M. 1951: 406
Weber, M. 1913: 551
1913
Loc

Barathronus diaphanus

Brauer, A. 1906: 305
1906