Osteoglossidae Bonaparte 1831
Creators: name: Hilton, Eric J.
name: Lavoué, Sébastien
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Osteoglossiformes
Osteoglossidae

description: <b>Osteoglossidae</b>. Outside of Mormyridae, Osteoglossidae is the most diverse family of Osteoglossomorpha, with four extant genera, classified in two subfamilies (Osteoglossinae, including <i>Osteoglossum</i> from South America and <i>Scleropages</i> from Southeast Asia and Australia, and Arapaiminae (= Heterotidinae) including <i>Heterotis</i> from Africa and <i>Arapaima</i> from South America). In all osteoglossids, the large, cycloid scales are reticulate, with a network of furrows across the entire surface of the scales (mormyroids have reticulate furrows on just the posterior field of the scale, with welldeveloped radii on the anterior field; see Hilton, 2003: fig. 39). These furrows define so-called squamules, which have been recovered in the fossil record (Gayet, Meunier, 1983; Taverne <i>et al.</i>, 2007). The crown-group osteoglossids have elongate, posteriorly positioned dorsal and anal fins (these are longer in <i>Osteoglossum</i> than in <i>Scleropages</i>), a short caudal peduncle, and a large rounded caudal fin. Osteoglossinae (Fig. 8) have laterally compressed bodies and large, dorsally directed mouths with elongate lower jaws. Two barbels extend from the anterior tip of the lower jaws, and in life these are held horizontally in the water column. Most remarkably are the large pectoral fins that have a long, very robust leading pectoral fin ray. These fin rays support the strong pectoral fins that contribute to the ability of these fishes to float at the surface while hunting prey and leap from the water to capture terrestrial invertebrate and vertebrate prey items above the water line (Goulding, 1980; Verba <i>et al</i>., 2018). Adults of the two species of <i>Osteoglossum</i> are silver (<i>O. bicirrhosum</i>) or greyish-steel (<i>O. ferreirai</i>) colored, the yolk-sac larvae of <i>O. bicirrhosum</i> are silver whereas those of <i>O. ferreirai</i>, which is restricted to the Rio Negro, are black with a distinct yellow lateral stripe on the body. The species of <i>Osteoglossum</i> are largely allopatric: <i>O. bicirrhosum</i> is found throughout the Amazon and the Branco river basins, and <i>O. ferreirai</i> is found in the Rio Negro basin, including the Branco, and the Orinoco River, which was likely the result of an introduction (Escobar <i>et al.</i>, 2013). Using a ~1,000 base-pair fragment of the mitochondrial genome, Escobar <i>et al</i>. (2013) calculated a genetic distance of 8.9% between the two species. <i>Scleropages</i> comprises four species, two from Southeast Asia (<i>S. formosus</i> from Vietnam, Cambodia, Thailand, the Malay Peninsula, Sumatra, and Borneo, and <i>S. inscriptus</i> from Myanmar) and two from Australia (<i>S. jardinii</i> from the coastal river systems of northern Australia and Papua New Guinea, and <i>S. leichardti</i> from the Fitzroy River basin). Roberts (2012) suggested the subgenus name <i>Delsmania</i> Fowler, 1933 could usefully be applied to the group containing <i>S. formosus</i> and <i>S. inscriptus</i>, with the two Australian species being in the subgenus <i>Scleropages</i>. The four species of <i>Scleropages</i> have dramatic coloration and, at least in the case of <i>S. inscriptus</i>, patterning. Color variants oh <i>S. formosus</i> have been suggested to be distinct species (Pouyaud <i>et al.</i>, 2003), although these are not regarded as valid (Kottelat, Widjanarti, 2005; Roberts, 2012). A fossil species of <i>Scleropages</i>, † <i>S. sinensis</i>, has been recently described from the Early Eocene Xiwanpu and Yangxi formations of China (Zhang, Wilson, 2017). Several additional fossil taxa have been interpreted as being close to Osteoglossinae, if not within the subfamily itself, including † <i>Opsithrissops</i>, † <i>Brychaetus</i>, † <i>Foreyichthys</i>, † <i>Heterosteoglossum</i> (see Taverne, 1998; Bonde, 2008; and Forey, Hilton, 2010 for discussion of these and other fossil osteoglossid taxa). Although it bears an elongate lower jaw similar to that of osteoglossids, † <i>Furichthys</i>, from the Early Eocene of Denmark, has been interpreted as stem-group Osteoglossi (= Osteoglossiformes + Mormyriformes; Bonde, 2008). Arapaiminae comprises two genera of extant fishes (<i>Arapaima</i> and <i>Heterotis</i>; Fig. 9) and putatively several fossil taxa, including † <i>Joffrichthys</i> from the Paleocene of Canada (Li, Wilson, 1996b), † <i>Trissopterus</i>, from the Eocene of Italy, and † <i>Sinoglossus</i> from the Eocene of China (although see Murray <i>et al.</i>, 2018, who found † <i>Joffrichthys</i> to be a potential stem osteoglossiform). <i>Arapaima</i>, because of the unique configuration of its occipital region (Hilton <i>et al.</i>, 2007), has been identified in the fossil record based on isolated basiocciptal/vertebral elements (Lundberg, Chernoff, 1992; Gayet, Meunier, 1998). <i>Arapaima</i> has long been considered to be a widespread monotypic genus, with only <i>A. gigas</i> found throughout the Amazon basin. Stewart (2013a,b) argued that four nominal species and a new species should be recognized (<i>A. arapaima</i>, <i>A. agassizi</i>, <i>A. mapae</i>, <i>A. gigas</i>, and <i>A. leptosoma</i>). Stewart (2013a) further suggested that <i>A. agassizi</i> had no known specimens and had not been collected for 190 years, and that <i>A. mapae</i> and <i>A. gigas</i> were only known from their holotypes. Several studies have found moderate to low population genetic structure across the range of the genus at various scales (Araripe <i>et al.</i>, 2013; Watson <i>et al.</i>, 2013). Most range-wide structure appears to be associated with distance between populations (Hrbek <i>et al.</i>, 2005), and low genetic diversity within smaller portions of its range is suggestive of overfishing (<i>e.g</i>., Araguaia-Tocantins basin; Vitorino <i>et al.</i>, 2017). <i>Heterotis niloticus</i> is distributed throughout the Nilo-Sudanese region of Africa from Ethiopia to Senegal, the Chad basin, and Lake Turkana; it has been widely introduced in central and western Africa and is regionally extinct in the upper Egyptian Nile (Akinyi <i>et al</i>., 2010). In contrast to <i>Arapaima</i>, there is genetic structure of <i>Heterotis</i>, even within relatively small portions of their range (<i>e.g</i>., Hurtado <i>et al.</i>, 2013, found significant genetic differentiation between three river basins in Benin). <i>Arapaima</i> and <i>Heterotis</i> are broadly regarded as sister taxa, supported by genetics and several morphological characters (enlarged first infraorbital bone, divided first infrapharyngobranchial, and having the angular, articular, and retroarticular all unfused in the adult [otherwise seen only in † <i>Phareodus</i>]; Hilton, 2003). As a taxonomic aside, Taverne (1979) named two subfamilies of Osteoglossidae: †Phareodontinae (including † <i>Phareodus</i>, † <i>Brychaetus</i>, † <i>Musperia</i>, and † <i>Phareoides</i>) and Osteoglossinae (including <i>Osteoglossum</i> and <i>Scleropages</i>), with Pantodontidae (only <i>Pantodon</i>) and Arapaimidae as separate families, and the latter containing the subfamilies Heterotinae (= <i>Heterotis</i> + † <i>Paradercetis</i>) and Arapaiminae (= <i>Arapaima</i>). Two family group names for the clade including <i>Arapaima</i> and <i>Heterotis</i> have been used in the literature, Arapaimini Bonaparte, 1846 and Heterotidae Cope, 1871. Although the former has priority, the latter is in broad current usage, as Heterotidinae (<i>e.g</i>., Nelson, 1994, 2006; Li, Wilson, 1996a; Hilton, 2003; Nelson <i>et al</i>., 2016). However, the ICZN’s (1999) criteria for reversal of precedence (Article 23.9) are not satisfied, as both family-group names have been used since 1899, and indeed Arapaimidae is also used in current literature (<i>e.g</i>., Taverne, 1998; Bonde, 2008; Akinyi <i>et al</i>., 2010). Therefore, the principle of priority should prevail, and Arapaiminae is the correct name for this family-group taxon (van der Laan <i>et al</i>., 2014). The genus-level diversity among the extant Osteoglossidae is dwarfed by the number of fossil genera included in or allied closely to the family (Forey, Hilton, 2010). Some of these taxa are <i>insertae sedis</i>, but several can be referred to the subfamily †Phareodontinae (Fig. 10), which was erected by Taverne (1979) to encompass † <i>Phareodus</i> (Eocene, North America, Australia, including † <i>Phareoides</i>), † <i>Brychaetus</i>, (Eocene, Europe, Africa, south Asia, and possibly North America), and † <i>Musperia</i> (Eocene, Sumatra). To this group can be added † <i>Cretophareodus</i>, † <i>Taverneichthys</i>, and † <i>Ridewoodichthys</i> (<i>e.g</i>., see Kumar <i>et al.</i>, 2005; Taverne, 2009a,b; Taverne <i>et al.</i>, 2009; Forey, Hilton, 2010). Other taxa that are referable to the subfamily, or otherwise near its base (<i>e.g</i>., interpreted to branch off from the stem of the family, or crownward from the phareodontines) include † <i>Brychaetoides</i>, † <i>Phareodusichthys</i>, † <i>Monopteros</i>, † <i>Xosteoglossid</i>, † <i>Magnigena</i>, and several unnamed taxa (Bonde, 2008; Forey, Hilton, 2010). Two Eocene osteoglossomorphs from Africa, † <i>Singida</i> (Fig. 11) and † <i>Chauliopareion</i>, are frequently considered to be related to Osteoglossidae, primarily either as stem-groups (Murray, Wilson, 2005; Xu, Chang, 2009; Murray <i>et al.</i>, 2018), or as sister-group to <i>Pantodon</i> (Hilton, 2003), although other positions have been supported (<i>e.g</i>., stem Osteoglossine, Zhang, 2006; stem Osteoglossi, Bonde, 2008). † <i>Chanopsis</i> (Aptian, Democratic Republic of the Congo) has also been considered to be an osteoglossid (Bonde, 1996; Taverne, 1998), although Forey, Hilton (2010) questioned this assessment. A remarkable aspect of the fossil record of Osteoglossidae is that several forms are known from undisputedly marine deposits (Taverne, 1998; Bonde, 1996, 2008; Forey, Hilton, 2010). This is remarkable because all extant osteoglossomorphs are entirely freshwater forms, and their distribution has been held as a text-book example of vicariance biogeography. However, the occurrence of marine fossil taxa suggests that at least portions of the evolutionary history of Osteoglossomorpha took place in the marine realm (Taverne, 1998; Bonde, 2008; Forey, Hilton, 2010). Bonde (2008) in fact concluded a marine origin of Osteoglossomorpha, with two or three freshwater invasions, although as many as nine possible invasions into marine habitats was offered as an alternative hypothesis [this latter hypothesis was regrettably miscited as Bonde’s primary conclusion by Forey, Hilton, 2010]). Among the marine forms are † <i>Magnigena</i> (Paleocene, Saudi Arabia), † <i>Brychaetus</i> (Eocene, Europe, Africa, south Asia, and possibly North America), † <i>Heterosteoglossum</i>, † <i>Furichthys</i>, † <i>Xosteoglossid</i>, † <i>Brychaetoides</i>, and an unnamed osteoglossiform (Early Eocene, Denmark), † <i>Monopteros</i>, † <i>Thrissopterus</i>, and † <i>Foreyichthys</i> (Eocene, Monte Bolca, Italy), as well as several unnamed taxa (<i>e.g</i>., a particularly osteoglossid-like partial braincase from the Eocene London Clay; Forey, Hilton, 2010).
description: Published as part of <i>Hilton, Eric J. &amp; Lavoué, Sébastien, 2018, A review of the systematic biology of fossil and living bony-tongue fishes, Osteoglossomorpha (Actinopterygii: Teleostei), pp. 1-35 in Neotropical Ichthyology 16 (3)</i> on pages 9-11, DOI: 10.1590/1982-0224-20180031, http://zenodo.org/record/3709903
description: {"references": ["Hilton EJ. Comparative osteology and phylogenetic systematics of fossil and living bony-tongue fishes (Actinopterygii, Teleostei, Osteoglossomorpha). Zool J Linn Soc [serial on the Internet]. 2003; 137 (1): 1 - 100. Available from: https: // doi. org / 10.1046 / j. 1096 - 3642.2003.00032. x", "Gayet M, Meunier FJ. Ecailles actuelles et fossiles d'Osteoglossiformes (Pisces, Teleostei). C R Acad Sci II. 1983; 297 (13): 867 - 70.", "Taverne L, Nolf D, Folie A. On the presence of the osteoglossid fish genus Scleropages (Teleostei, Osteoglossiformes) in the continental Paleocene of Hainin (Mons Basin, Belgium). Belg J Zool. 2007; 137 (1): 89 - 97.", "Goulding M. The fishes and the forest: explorations in Amazonian natural history. Berkeley and Los Angeles: University of California Press; 1980.", "Verba JT, Borges MLO, Silva MNF, Pinto LC, Neto JGR. Mice on menu: opportunistic feeding behavior of the Amazonian silver arowana Osteoglossum bicirrhosum. J Fish Biol. Forthcoming 2018.", "Escobar L MD, Farias IP, Taphorn B DC, Landines M, Hrbek T. Molecular diagnosis of the arowanas Osteoglossum ferreirai Kanazawa, 1966 and O. bicirrhossum (Cuvier, 1829) from the Orinoco and Amazon River basins. Neotrop Ichthyol [serial on the Internet]. 2013; 11 (2): 335 - 40. Available from: https: // doi. org / 10.1590 / S 1679 - 62252013000200011", "Roberts TR. Scleropages inscriptus, a new fish species from the Tananthayi or Tenasserim River basin, Malay Peninsula of Myanmar (Osteoglossidae: Osteoglossiformes). Aqua. 2012; 18 (2): 113 - 18.", "Fowler HW. Descriptions of new fishes obtained 1907 to 1910, chiefly in the Philippine Islands and adjacent seas. Proc Acad Nat Sci Phila [serial on the Internet]. 1933; 85: 233 - 67. Available from: https: // jstor. org / stable / 4064176", "Pouyaud L, Sudarto, Teugels GG. The different colour varieties of the Asian Arowana Scleropages formosus (Osteoglossidae) are distinct species: morphologic and genetic evidences. Cybium. 2003; 27 (4): 287 - 305.", "Kottelat M, Widjanarti E. The fishes of Danau Sentarum National Park and the Kapuas Lakes area, Kalimantan Barat, Indonesia. Raffles Bull Zool. 2005; 13: 139 - 73.", "Zhang J-Y, Wilson MVH. First complete fossil Scleropages (Osteoglossomorpha). Vert PalAs. 2017; 55 (1): 1 - 23.", "Taverne L. Les Osteoglossomorphes marins de. l'Eocene du Monte Bolca (Italie): Monopteros Volta 1796, Thrissopterus Heckel, 1856 et Foreyichthys Taverne, 1979. Considerations sur la phylogenie des Teleosteens osteoglossomorphes. Stud Ric Giacimenti Terziari Bolca. 1998; 7: 67 - 158.", "Bonde N. Osteoglossomorphs of the marine Lower Eocene of Denmark - with remarks on other Eocene taxa and their importance for palaeobiogeography. In: Cavin L, Longbottom A, Richter M, editors. Fishes and the Break-up of Pangea. London: Geological Society; 2008. p. 253 - 310. (Special Publications; 295).", "Forey PL, Hilton EJ. Two new Tertiary osteoglossid fishes (Teleostei: Osteoglossomorpha) with notes on the history of the family. In: Elliott DK, Maisey JG, Yu X, Miao D, editors. Morphology, phylogeny and paleobiogeography of fossil fishes. Munchen: Verlag Dr. Friedrich Pfeil; 2010. p. 215 - 246.", "Li G-Q, Wilson MVH. The discovery of Heterotidinae (Teleostei: Osteoglossidae) from the Paleocene paskapoo formation of Alberta, Canada. J Vertebr Paleontol [serial on the Internet]. 1996 b. 16 (2): 198 - 209. Available from: https: // doi. org / 10.1080 / 02724634.1996.10011308", "Murray AM, Zelenitsky DK, Brinkman DB, Neuman AG. Two new Palaeocene osteoglossomorphs from Canada, with a reassessment of the relationships of the genus Joffrichthys, and analysis of diversity from articulated versus microfossil material. Zool J Linn Soc [serial on the Internet]. 2018; 183 (4): 907 - 44. Available from: https: // doi. org / 10.1093 / zoolinnean / zlx 100", "Hilton EJ, Britz R, Johnson GD, Foley PL. Clarification of the Occipito- Vertebral region of Arapaima gigas (Osteoglossomorpha: Osteoglossidae) through developmental osteology. Copeia. 2007; 2007 (1): 218 - 24.", "Lundberg JG, Chernoff B. A Miocene fossil of the Amazonian fish Arapaima (Teleostei, Arapaimidae) from the Magdalena River region of Colombia-Biogeographic and evolutionary implication. Biotropica [serial on the Internet]. 1992; 24 (1): 2 - 14. Available from: https: // www. jstor. org / stable / 2388468", "Gayet M, Meunier FJ. Maastrichtian to early late Paleocene freshwater Osteichthyes of Bolivia: additions and comments. In: Malabarba LR, Reis RE, Vari RP, Lucena ZMS, Lucena CAS, editors. Phylogeny and classification of Neotropical fishes. Porto Alegre: Edipucrs; 1998. p. 85 - 110.", "Stewart DJ. Re-description of Arapaima agassizii (Valenciennes), a rare fish from Brazil (Osteoglossomorpha: Osteoglossidae). Copeia. 2013 a; 2013 (1): 38 - 51.", "Araripe J, do Rego PS, Queiroz H, Sampaio I, Schneider H. Dispersal capacity and genetic structure of Arapaima gigas on different geographic scales using microsatellite markers. PLoS One [serial on the Internet]. 2013; 8 (1): e 54470. Available from: https: // doi. org / 10.1371 / journal. pone. 0054470", "Watson LC, Stewart DJ, Kretzer AM. Genetic diversity and population structure of the threatened giant Arapaima in southwestern Guyana: implications for their conservation. Copeia. 2013; 104 (4): 864 - 72.", "Hrbek T, Farias IP, Crossa M, Sampaio I, Porto JIR, Meyer A. Population genetic analysis of Arapaima gigas, one of the largest freshwater fishes of the Amazon basin: implications for its conservation. Anim Conserv [serial on the Internet]. 2005; 8 (3): 297 - 308. Available from: https: // doi. org / 10.1017 / S 1367943005002210", "Vitorino CA, Nogueira F, Souza IL, Araripe J, Venere PC. Low genetic diversity and structuring of the Arapaima (Osteoglossiformes, Arapaimidae) population of the Araguaia- Tocantins Basin. Front Genet [serial on the Internet]. 2017; 8 (159): 1 - 10. Available from: https: // doi. org / 10.3389 / fgene. 2017.00159", "Akinyi E, Azeroual A, Entsua-Mensah M, Getahun A, Laleye P, Moelants T. Heterotis niloticus. The IUCN Red List of Threatened Species [Internet]. 2010 [cited 2018 Mar 09]: e. T 182580 A 7920022. Available from: http: // dx. doi. org / 10.2305 / IUCN. UK. 2010 - 3. RLTS. T 182580 A 7920022. en", "Hurtado LA, Carrera E, Adite A, Winemiller KO. Genetic differentiation of a primitive teleost, the African bonytongue Heterotis niloticus, among river basins and within a floodplain river system in Benin, West Africa. J Fish Biol [serial on the Internet]. 2013; 83 (3): 682 - 90. Available from: https: // doi. org / 10.1111 / jfb. 12198", "Taverne L. Osteologie, phylogenese et systematique des teleosteens fossiles et actuels du super ordre des Osteoglossomorphes. Troisieme partie. Evolution des structures osteologiques et conclusions generales relatives a la phylogenese et a la systematique du super ordre. Acad Roy Belg Mem Cl Sci. 1979; 43 (3): 1 - 168. (Collection 8, Serie 2)", "Bonaparte CL. Catalogo metodico dei pesci europei. Part 2. Atti Sci Ital. 1846; 1 - 95.", "Cope ED. Observations on the systematic relations of the fishes. Am Nat. 1871; 5 (8 / 9): 579 - 93.", "Nelson JS. Fishes of the world. 3 rd ed. New York (NY): J. Wiley; 1994.", "Nelson JS. Fishes of the world. 4 th ed. Hoboken (NJ): J. Wiley; 2006.", "Li G-Q, Wilson MVH. Phylogeny of Osteoglossomorpha. In: Stiassny MLJ, Parenti LR, Johnson GD, editors. Interrelationships of fishes. New York: Academic Press; 1996 a. p. 163 - 174.", "Nelson JS, Grande TC, Wilson MVH. Fishes of the world. 5 th ed. Hoboken (NJ): J. Wiley; 2016.", "Van der Laan R, Eschmeyer WN, Fricke R. Family-group names of Recent fishes. Zootaxa [serial on the Internet]. 2014; 3882: 1 - 230. Available from: https: // doi. org / 10.11646 / zootaxa. 3882.1.1", "Kumar K, Rana RS, Paliwal BS. Osteoglossid and lepisosteid fish remains from the Paleocene Palana Formation, Rajasthan, India. Pap Palaeontol [serial on the Internet]. 2005; 48 (6): 1187 - 1209. Available from: https: // doi. org / 10.1111 / j. 1475 - 4983.2005.00519. x", "Taverne L. Ridewoodichthys, a new genus for Brychaetus caheni from the marine Paleocene of Cabinda (Africa): Re-description and comments on its relationships within the Osteoglossidae (Teleostei, Osteoglossomorpha). Bull Inst R Sci Nat Belg Sci Terre. 2009 a; 79: 147 - 53", "Taverne L, Kumar K, Rana RS. Complement to the study of the Indian Paleocene osteoglossid fish genus Taverneichthys (Teleostei, Osteoglossomorpha). Bull Inst R Sci Nat Belg Sci Terre. 2009; 79: 155 - 60.", "Murray AM, Wilson MVH. DescriptionofanewEoceneosteoglossid fish and additional information on Singida jacksonoides Greenwood and Patterson, 1967 (Osteoglossomorpha), with an assessment of their phylogenetic relationships. Zool J Linn Soc [serial on the Internet]. 2005; 144 (2): 213 - 28. Available from: https: // doi. org / 10.1111 / j. 1096 - 3642.2005.00170. x", "Xu GH, Chang MM. Redescription of Paralycoptera wui Chang &amp; Chou, 1977 (Teleostei: Osteoglossoidei) from the Early Cretaceous of eastern China. Zool J Linn Soc [serial on the Internet]. 2009; 157 (1): 83 - 106. Available from: https: // doi. org / 10.1111 / j. 1096 - 3642.2009.00532. x", "Zhang J-Y. Phylogeny of Osteoglossomorpha. Vert PalAs. 2006; 44 (1): 43 - 59.", "Bonde N. Osteoglossids (Teleostei: Osteoglossomorpha) of the Mesozoic - Comments on their interrelationships. In: Arratia G, Viohl G, editors. Mesozoic Fishes: Systematics and Paleoecology. Munchen: Verlag Dr. Friedrich Pfeil, 1996. p. 273 - 284."]}