Ophichthus mystacinus McCosker 1999

Main Author: E, John
Format: info publication-taxonomictreatment Journal
Terbitan: , 2010
Subjects:
Online Access: https://zenodo.org/record/6211439
Daftar Isi:
  • Ophichthus mystacinus McCosker 1999 Ophichthus mystacinus McCosker 1999: 579 (type locality New Caledonia, holotype MNHN 1998 - 46). Diagnosis. A moderately elongate species of Ophichthus, subgenus Coecilophis, with: tail 59–60 %, head 10.7–11.7 %, body depth behind gill openings 3.6–4.3 % of TL; dorsal-fin origin about mid-trunk; pectoral fins elongate, the central rays threadlike; posterior margin of the orbit ahead of the rictus; cephalic pores small and difficult to discern, SO 1 + 4, IO 4 + 2, POM 2 + 6; teeth conical, numerous and small, biserial in jaws and anteriorly on vomer; coloration yellowish tan, brown dorsally, fins pale, anterior nostrils pale, snout tip smudged, but not blackened; and mean vertebral formula 34.2 / 61.3 / 169.7., total vertebrae 162–177 (n= 8). Size. To 429 mm. The holotype, 426 mm, is a male with undeveloped gonads. Distribution. Known from New Caledonia, Tonga, Fiji, and the Philippines, between 371–824 m depth. Remarks. Originally described from New Caledonia collections at 450–580 m depth, subsequent material from Fiji and Tonga as shallow as 370 m, and from the Philippines at 810–824 m was identified. The holotype of O. mystacinus has 35 / 62 / 174 vertebrae. Material examined. MNHN 1998 - 46, the holotype, 426 mm, New Caledonia (18 o 58 '00 S, 163 o 10 ' 50 E), 580 m. And paratypes: CAS 89552, 429 mm, and BPBM 37308, 336 mm, New Caledonia (18 o 56 ' 80 S, 163 o 17 ' 70 E), 450 m; MNHN 1998-47, 383 mm, New Caledonia (18 o 55 ' 80 S, 163 o 13 ' 80 E), 500 m. And other material examined: MNHN 1997-1602, 409 mm, Vanuatu, 469– 525 m. MNHN 1997 -0603, 433 mm, Vanuatu, 522– 527 m. MNHN 2001-1064, 373 mm, Tonga (21 o04'S, 175 o 22 'E), 487 m, otter trawl, Sta. CP 1643, 22 June 2001. MNHN 2001 -1067, 3(386–451 mm), Tonga (19 o06'S, 174 o 18 'E), 371–437 m, otter trawl, 14 June 2001. MNHN 2001-1094, 563 mm, Fiji (17 o 11 'S, 178 o 41 'E), 398–409 m, otter trawl, 3 Mar. 1999. MNHN 2001-1097, 357 mm, Fiji, (16 o05'S, 178 o 28 'E), 400–407 m, otter trawl, 26 Feb. 1999. MNHN 1998 - 0 660, 356 mm, an immature male, from off Lubang Island, Philippine Islands, (13 o 37 'N, 120 o 34 'E), Campaigne Musorstom 2, 1998, captured by 4 m otter trawl in 810–824 m on 27 Nov. 1980.
  • Published as part of E, John, 2010, Deepwater Indo-Pacific species of the snake-eel genus Ophichthus (Anguilliformes: Ophichthidae), with the description of nine new species, pp. 1-39 in Zootaxa 2505 on pages 31-32, DOI: 10.5281/zenodo.195896