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DOI: http://dx.doi.org/10.11646/zootaxa.4060.1.10

A new species of Muraenichthys (Anguilliformes: Ophichthidae) from the Indo-Pacific, with revised generic diagnosis

YUSUKE HIBINO, SEISHI KIMURA

Abstract


A new worm eel (Ophichthidae, Myrophinae), Muraenichthys velinasalis, is described based on five specimens (97.9–281.0 mm of total length) collected from Taiwan, Philippines, northeastern Australia, Vanuatu, and Sri Lanka. Muranichthys velinasalis is most similar to M. philippinensis and M. schultzei in the position of the dorsal-fin origin behind a vertical through mid-anus, but can be easily distinguished from the latter two species by the condition of the posterior nostril, unique character of M. velinasalis within Muraenichthys, and by the shape of the teeth on the innermost row of the upper jaw (relatively robust and slightly pointed vs. slender and pointed), arrangement of upper-jaw teeth (irregularly biserial anteriorly and uniserial posteriorly vs. completely uniserial in M. philippinensis, biserial or triserial in M. schultzei), and its more numerous or fewer preanal and total vertebrae (44–51 vs. 59–60 in M. philippinensis, 42–47 in M. schultzei; 136–139 vs. 128–130 in M. philippinensis, 119–128 in M. schultzei). The genus Muraenichthys is re-defined based on all currently valid species by the following combination of characters: eyes located anterior to mid-jaw; inner hole of posterior nostril above upper lip, and outer hole usually outside of mouth, with a prominent but short projected flap anteriorly; a single pore between anterior and posterior nostrils; three preopercular pores; teeth on jaws, vomer, and intermaxillary area; tooth shape variable, blunt to pointed but not distinctly recurved and tooth length equal or less than a half of eye diameter; teeth on jaws and vomer arranged in one to five rows; gill opening constricted, its height<170% of eye diameter; pectoral fins absent.

 


Keywords


Pisces, Ophichthidae, Muraenichthys, new species, generic diagnosis

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References


Bleeker, P. (1853) Bijdrage tot de kennis der Muraenoïdenen Symbranchoïden van den Indischen Archipel. Verhandelingen van het Bataviaasch Genootschap van Kunstenen Wetenschappen, 25, 1–62.

Bleeker, P. (1853) Diagnostische beschrijvingen van nieuwe of weinig bekende vischsoorten van Batavia. Tiental I–VI. Natuurkundig Tijdschriftvoor Nederlandsch Indië, 4, 451–516.

Bleeker, P. (1857) Achtstebijdrage tot de kennis der vischfauna van Amboina. Natuurkundig Tijdschriftvoor Nederlandsch Indië, 2, 1–102.

Bleeker, P. (1864) Poissonsinédits indo-archipélagiques de l'ordre des Murènes. Nederlandsch Tijdschriftvoor de Dierkunde, 2, 38–54.

Böhlke, E.B. (1982) Vertebral formulae of type specimens of eels. Proceedings of the Academy of Natural Sciences of Philadelphia, 134, 31–49.

Castle, P.H.J. & McCosker, J.E. (1999) A new genus and two new species of myrophine worm-eels, with comments on Muraenichthys and Scolecenchelys (Anguilliformes: Ophichthidae). Records of the Australian Museum, 51, 113–122.
http://dx.doi.org/10.3853/j.0067-1975.51.1999.1300

Eschmeyer, W.N. (Ed.) (2015) Catalog of fishes: genera, species. references. Electronic version, updated 3 February 2015. Available from: http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (accessed 15 February 2015)

Fricke, R. & Eschmeyer, W.N. (2014) Guide to fish collections. Electronic version, updated 10 March 2014. Available from: http://researcharchive.calacademy.org/research/Ichthyology/catalog/fishcatmain.asp (accessed 10 April 2014)

Herre, A.W.C.T. (1923) A review of the eels of the Philippine Archipelago. Philippine Journal of Science, 23, 123–236.

Hibino, Y., McCosker, J.E. & Kimura, S. (2013) Redescription of a rare worm eel, Muraenichthys macrostomus Bleeker, 1864, a senior synonym of Skythrenchelys lentiginosa Castle and McCosker, 1999 (Anguilliformes: Ophichthidae, Myrophinae). Ichthyological Research.
http://dx.doi.org/10.1007/s10228-013-0337-z

ICZN (1999) International Code of Zoological Nomenclature. Fourth edition. International Trust for Zoological Nomenclature, London, xxix + 306 pp.

Jordan, D.S. & Richardson, R.E. (1908) Fishes from islands of the Philippine Archipelago. Bulletin of the Bureau of Fisheries, 27, 233–287.

Jordan, D.S. & Snyder, J.O. (1901) A review of the apodal fishes or eels of Japan, with descriptions of nineteen new species. Proceedings of the United States National Museum, 23, 837–890.
http://dx.doi.org/10.5479/si.00963801.23-1239.837

McCosker, J.E. (1970)A review of the eel genera Leptenchelys and Muraenichthys, with the descriptions of a new genus, Schismorhynchus, and a new species Muraenichthy schilensis. Pacific Science, 24, 506–516.

McCosker, J.E. (1982) A new genus and two new species of remarkable Pacific worm eels (Ophichthidae, subfamily Myrophinae). Proceedings of the California Academy of Sciences, (Series 4), 43, 59–66.

McCosker, J.E., Ide, S. & Endo, H. (2012) Three new species of ophichthid eels (Anguilliformes: Ophichthidae) from Japan. Bulletin of the National Museum of Nature and Science, Series A (Zoology), 6 (Supplement), 1–16.

Ogilby, J.D. (1897) Some new genera and species of fishes. Proceedings of the Linnean Society of New South Wales, 22, 245–251.

Schultz, L.P. & Woods, L.P. (1949) Keys to the genera of echelid eels and the species of Muraenichthys of the Pacific, with two new species. Journal of the Washington Academy of Sciences, 39, 169–174.

Weber, M. & de Beaufort, J.F. (1916) The fishes of the Indo-Australian Archipelago. III. Ostariophysi: II Cyprinoidea, Apodes, Synbranchi. E. J. Brill, Leiden, xv + 455 pp.


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