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- Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 2—Description of two new species of Centrophorus and clarification of the status of Centrophorus lusitanicus Barbosa du Bocage & de Brito Capello, 1864
- Centrophorus specimens with a distinctive long-based first dorsal fin (long-finned species) have previously been considered to be Centrophorus lusitanicus first described from Portugal. Critical examination of the original description and illustration reveal that C. lusitanicus should be considered a junior synonym of C. granulosus. However, the specimen considered to be the syntype of C. lusitanicus in the Natural History Museum in London is clearly a long-finned species and not conspecific with C. granulosus. A more detailed investigation revealed that this specimen should not be considered a syntype and was likely not originally collected off the coast of Portugal. Investigation of long-finned specimens of Centrophorus from the Indo-West Pacific and Eastern Atlantic revealed that two undescribed species exist and are herein formally described as C. lesliei and C. longipinnis. The two species are similar morphologically and belong to the long-snout Centrophorus group (e.g. C. isodon and C. harrissoni) but are clearly separable based on their very long first dorsal fins. The two species differ in relative length of the first dorsal fin and several other characters. They also differ genetically. Nonmetric multidimensional ordination based on morphometric data reveals both species level and ontogenetic differences. A short erratum is also provided for Part 1 of this revision of the Centrophorus due to two figure related errors which may cause some confusion.
- White, Ebert, Naylor
- Etmopterus samadiae n. sp., a new lanternshark (Squaliformes: Etmopteridae) from Papua New Guinea
- A new species of lanternshark, Etmopterus samadiae (Squaliformes: Etmopteridae), is described from off northern Papua New Guinea, in the western Central Pacific Ocean. The new species resembles other members of the "Etmopterus lucifer" clade in having linear rows of dermal denticles and most closely resembles E. brachyurus from the western North Pacific. The new species occurs along insular slopes between 340 and 785 m depth. The new species can be distinguished from other members of the E. lucifer clade by a combination of characteristics, including length of anterior flank branch markings being slightly shorter than its posterior branch, a longer caudal base marking, and irregular and variable number of black, horizontal, dash-like marks on sides of body. Molecular analysis based on the NADH2 marker further supports the distinction of E. samadiae from other members of the E. lucifer clade. © 2017 Magnolia Press., Export Date: 12 April 2017, Article, Correspondence Address: White, W.T.; CSIRO Oceans and Atmosphere, GPO Box 1538, Australia; email: firstname.lastname@example.org, Funding details: ACIAR, Australian Centre for International Agricultural Research, Funding details: NSF, National Science Foundation, Funding text: The senior author was supported by a project on the shark and ray resources of Papua New Guinea funded by the Australian Centre for International Agricultural Research (ACIAR; project FIS/2012/102), CSIRO Oceans & Atmosphere, and the National Fisheries Authority (NFA). Two of us (WW, SC) were also supported a National Science Foundation grant (Jaws and Backbone: Chondrichthyan Phylogeny and a Spine for the Vertebrate Tree of Life; DEB-01132229)., References: Bigelow, H.B., Schroeder, W.C., A study of the sharks of the suborder squaloidea (1957) Bulletin of the Museum of Comparative Zoology, 117, pp. 1-150; Chan, W.L., New sharks from the south China sea (1966) Journal of Zoology (London), 148, pp. 218-237. , https://doi.org/10.1111/j.1469-7998.1966.tb02949.x; Ebert, D.A., Compagno, L.J.V., DeVries, M.J., A new lanternshark (Squaliformes: Etmopteridae: Etmopterus) from southern Africa (2011) Copeia, 2011, pp. 379-384. , https://doi.org/10.1643/CI-09-183; Ebert, D.A., Straube, N., Leslie, R.W., Weigmann, S., Etmopterus alphus n. Sp.: A new lanternshark (Squaliformes: Etmopteridae) from the south-western indian ocean (2016) African Journal of Marine Science, 2016, pp. 1-12. , [published online]; Fricke, R., Allen, G.R., Andréfouët, S., Chen, W.-J., Hamel, M.A., Laboute, P., Mana, R., Uyeno, D., Checklist of the marine and estuarine fishes of madang District, Papua New Guinea, western pacific Ocean, with 820 new records (2014) Zootaxa, 3834 (1), pp. 1-247. , https://doi.org/10.11646/zootaxa.3832.1.1; Jordan, D.S., Snyder, J.O., Descriptions of two new species of squaloid sharks from Japan (1902) Proceedings of the United States National Museum, 25 (1279), pp. 79-81; Kotlyar, A.N., Dogfish sharks of the genus etmopterus rafinesque from the nazca and sala y Gómez submarine ridges (1990) Trudy Instituta Okeanologii Imeni P.P. 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(Ed.), Science Publishers, Enfield; Pante, E., Corbari, L., Thubaut, J., Chan, T.Y., Mana, R., Boisselier, M.C., Bouchet, P., Samadi, S., Exploration of the deep-sea fauna of Papua New Guinea (2012) Oceanography and Marine Biology: An Annual Review, 25 (3), pp. 214-225. , https://doi.org/10.5670/oceanog.2012.65; Sabaj Pérez, M.H., (2016) Standard Symbolic Codes for Institutional Resource Collections in Herpetology and Ichthyology: An Online Reference, , http://www.asih.org/, Version 4.0 (28 June 2014). American Society of Ichthyologists and Herpetologists, Washington, DC. (accessed 26 September 2016); Samadi, S., Puillandre, N., Pante, E., Boisselier, M.C., Chen, W.J., Corbari, L., Maestrati, P., Hourdez, S., Patchiness of deep-sea communities in Papua New Guinea and potential susceptibility to anthropogenic disturbances illustrated by seep organisms (2014) Marine Ecology, 36, pp. 109-132; Schaaf-DaSilva, J.A., Ebert, D.A., Etmopterus burgessi sp. Nov., A new species of lanternshark (Squaliformes: Etmopteridae) from Taiwan (2006) Zootaxa, 1373, pp. 53-64; Smith, H.M., The squaloid sharks of the philippine Archipelago, with descriptions of new genera and species (1912) Proceedings of the United States National Museum, 41 (1877), pp. 677-685. , https://doi.org/10.5479/si.00963801.41-1877.677; Straube, N., Iglésias, S.P., Sellos, D.Y., Kriwet, J., Schliewen, U.K., Molecular phylogeny and node time estimation of bioluminescent lanternsharks (Elasmobranchii: Etmopteridae) (2010) Molecular Phylogenetics and Evolution, 56, pp. 905-917. , https://doi.org/10.1016/j.ympev.2010.04.042; Whitley, G.P., Studies in ichthyology. No. 12 (1939) Records of the Australian Museum, 20 (4), pp. 264-277. , https://doi.org/10.3853/j.0067-1975.20.1939.576
- White, Ebert, Mana, Corrigan