Publications - Ricardo Betancur-R.

See also Google Scholar & ResearchGate

**Featured in the journal list of the Nature Index (top 82 scientific journals)

Under review/revision

**92. M. Rincon-Sandoval, R.*  De-Kayne, S.D. Shank, S. Pirro, A. Ko’oue, L. Abueg, A. Tracey, J. Mountcastle, B. O'Toole, J. Balacco, G. Formenti, E.D.  Jarvis, D. Arcila, S.L.K. Pond, A.  Davis, D.D. Bloom & R. Betancur-R.* Dramatic ecological diversification of sea catfishes is accompanied by genome-wide signatures of positive selection. Nature Communications. Under revision. *Equal contribution.

91. Pedraza-Marrón, C.D.R., O. Domínguez-Domínguez, S. Jarjoura, L. Benestan, B.C. Victor, A. Acero P., R. Robertson, C.C. Baldwin, P.A. Hastings & R. Betancur-R. Biogeographic breaks and seascape features shaping diversification across evolutionary scales in Neotropical cryptobenthic fishes. Under Review.

90. Miller, E.C., R. Faucher, P.B. Hart, M. Rincon-Sandoval, A. Santaquiteria, W.T. White, C.C. Baldwin, M. Miya, R. Betancur-R., L. Tornabene, K. Evans & D. Arcila. Phylogenomics reveals the deep ocean as an accelerator for evolutionary diversification in anglerfishes. Biorxiv preprint. Under Review.

89. Santaquiteria, A., E. Miller, U. Rosas-Puchuri, C. Pedraza-Marrón, E. Troyer, M. Westneat, G. Carnevale, D. Arcila & R. Betancur-R. Under review. Colonization dynamics explain the decoupling of species richness and morphological disparity in syngnatharian fishes across oceans. The American Naturalist. Under revision. 

88. Rosas-Puchuri, U., E. Duarte-Ribeiro, S. Khanmohammadi, D. Arcila; G. Ortí & R. Betancur-R. Dissecting factors underlying phylogenetic uncertainty using machine learning models. Molecular Phylogenetics and Evolution. Under revision. 


87. Rosas-Puchuri, U., A. Santaquiteria, C. Solis-Lemus & R. Betancur-R. In press. Non-linear phylogenetic regression using regularized kernels. In press. Methods in Ecology and Evolution.

86. Egan, J. P., A. M. Simons, M. Sadegh Alavi-Yeganeh, M. P. Hammer, P. Tongnunui, D. Arcila, R. Betancur-R. & Devin D. Bloom. Accepted Phylogenomics, lineage diversification rates, and the evolution of diadromy in Clupeiformes (anchovies, herrings, sardines, and relatives). Systematic Biology.

**85. Duarte-Ribeiro, E., U. Rosas-Puchuri, M. Friedman, G.C. Woodruff, L.C. Hughes, K.E. Carpenter, O. Domínguez-Domínguez, G. Ortí, D. Arcila & R. Betancur-R.* Accepted with revision. Phylogenomic and comparative genomic analyses support a single evolutionary origin of flatfish asymmetry. Nature Genetics, PDF. Press releases: NY Times (by Carl Zimmer) & Why Evolution is True blog (by Jerry Coyne).

84. Mihalič, F., D. Arcila, M. E. Pettersson, P. Farkhondehkish, E. Andersson, L. Andersson, R. Betancur-R. & P. Jemth. Conservation of affinity rather than sequence underlies a dynamic evolution of the motif-mediated p53/MDM2 interaction in ray-finned fishes. Molecular Biology and Evolution 41(2):msae018. PDF.


83. Narváez-Barandica, J.C.; J.F. Quintero-Galvis, A. Caruso-Vargas, G. Blanco-Cervantes, J.C. Aguirre-Pabón, L.R. Castro, R. Betancur-R. & A. Acero-Pizarro. Congruence between microsatellite loci, SNPs, and COI gene reveals a phylogeographic break in the southern Caribbean Sea: The case of West Indian top shell Cittarium pica (Gastropoda: Tegulidae). Fisheries Research 269, 106857. PDF. 

82. Arcila, D.A. & R. Betancur-R. Scientist spotlights: Dahiana Arcila & Ricardo Betancur-R. Ichthyology and Herpetology 111, No. 2, 2023, 331–334. PDF.

81. Narváez-Barandica, J.C.; J.F. Quintero-Galvis, J.C. Aguirre-Pabón, L.R. Castro, R. Betancur-R. & A. Acero-Pizarro. A comparative phylogeography of three arine Species with Different PLD Modes Reveals Two Genetic Breaks across the Southern Caribbean Sea. Animals 2023, 13, 2528. PDF. 

80. Berbel-Filho, W.M., S. Pirro, A. Thompson, S.M.Q. Lima, S. Consuegra & R. Betancur-R. The Complete Genome Sequences of three species from the killifish genus Kryptolebias (Rivulidae, Cyprinodontiformes). Biodiversity Genomes PDF.

79. Arcila, D., M. Rincon-Sandoval, W. Hanson,  P.B.  Hart, V.L. González, R. Betancur-R. & M.E. Bichuette. Transcriptome Analysis of Brazilian Blind Characid, Stygichthys typhlops, Reveals Convergent Selection with Astyanax mexicanus and Other Cavefishes. Frontiers in Ecology and Evolution 2023 (11). PDF.


78. Piñeros, V.J., C.R. Pedraza-Marrón, I. Betancourt-Resendes, N. Calderón-Cortés, R. Betancur-R. & O. Domínguez-Domínguez. Genome-wide species delimitation analyses of a silverside fish species complex in central Mexico indicate taxonomic over-splitting. BMC Ecology and Evolution 22, 108 (2022). PDF.

77. de Brito, V.,  R. Betancur-R.,  M.D. Burns,  T.J. Buser, K.W. Conway,  J.P. Fontenelle,  M.A. Kolmann,  W.T. McCraney, C.E. Thacker &  D.D. Bloom. Patterns of Phenotypic Evolution Associated with Marine/Freshwater Transitions in Fishes. Integrative and Comparative Biology 62 (2): 406–423. PDF.

**76. Troyer, E.M., R. Betancur-R., L.C. Hughes, M. Westneat, G. Carnevale, W. White, J. Pogonoski, J.C. Tyler, C.C. Baldwin, G. Ortí, A. Brinkworth, J. Clavel & D. Arcila. The impact of paleoclimatic changes on body size evolution in marine fishes. Proceedings of the National Academy of Sciences 119 (29) e2122486119. PDF. Press releases: PNAS News.

75. Medeiros, A. P.*, B. A. Santos & R. Betancur-R.* Does genome size increase with water depth in marine fishes? Evolution PDF. *Equal contribution.

74. Peterson, R. D., J. P. Sullivan, C. D. Hopkins, A. Santaquiteria, C. B. Dillman, S. Pirro, R. Betancur-R., D. Arcila, L. C. Hughes, G. Ortí. Phylogenomics of bonytongue fishes (Osteoglossomorpha) shed light on the craniofacial evolution and biogeography of the weakly electric clade (Mormyridae). Systematic Biology. PDF.

73. Marceniuk, A. P., B. Santos, C. Oliveira, J. L. B. Sales & R. Betancur-R. The marine catfishes of the genus Bagre (Siluriformes; Ariidae) from the Western Atlantic. Marine Biodiversity 52, 12 (2022). PDF.


72. Medeiros, A. P., B. Ferreira, R. Betancur-R., A. Cardoso, M. R. S. C. C. Matos & B. Santos. Centenary shipwrecks reveal the limits of artificial habitats in protecting regional fish diversity. Journal of Applied Ecology 2021(00):1–14. PDF.

71. Atta, C., H. Yuan, C. Li, D. Arcila, R. Betancur-R., L. Hughes, G. Orti & L. Tornabene. Exon-capture data and locus screening provide new insights into the phylogeny of flatfishes (Pleuronectoidei). Molecular Phylogenetics and Evolution 166, 107315. PDF.

70. Santaquiteria, A., A. C. Siqueira, E. Duarte-Ribeiro, G. Carnevale, W. White, J. Pogonoski, C. C. Baldwin, G. Ortí, D. Arcila & R. Betancur-R. Phylogenomics and Historical Biogeography of Seahorses, Dragonets, Goatfishes, and Allies (Teleostei: Syngnatharia): Assessing Factors Driving Uncertainty in Biogeographic Inferences. Systematic Biology 70 (6):1145–1162. PDF. See comment about the paper in MarineBio.

69. Arcila, D., L. Hughes, F. Melendez, C. C. Baldwin, W. White, K. Carpenter, J. T.  Williams, D. M. Santos, J. Pogonoski, M. Miya, G. Ortí & R. Betancur-R. Testing the utility of alternative metrics of branch support to resolve the ancient evolutionary radiation of tunas, stromateoids, and allies (Teleostei: Pelagiaria). Systematic Biology 70 (6):1123–1144. PDF.

68. Medeiros, A. P., B. Ferreira, F. Alvarado, R. Betancur-R., M. Soares & B. Santos. Deep reefs are not refugium for shallow-water fish communities in the southwestern Atlantic. Ecology and Evolution. DOI: 10.1002/ece3.7336. PDF.


**67. Rincon-Sandoval*, M., Duarte-Ribeiro*, E., Davis, A. M., Santaquiteria, A., Hughes, L. C.,  Baldwin, C., Soto-Torres, A. Acero P., Walker, H.J., Carpenter, K.E., Sheaves, M., Ortí, G., Arcila, D., &  R. Betancur-R.* Evolutionary determinism and convergence associated with water-column transitions in marine fishes. Proceeding of the National Academy of Sciences 117 (52) 33396-33403. PDF. *Equal contribution. Press releases: Eureka Alert, OU, GWU.

66. Hughes, L.C. , G. Ortí, H. Saad, C. Li , W.T. White, C. Baldwin, D. Arcila, & R. Betancur-R. Exon probe sets and bioinformatics pipelines for all levels of fish phylogenomics. Molecular Ecology Resources 2020 (00)1-18. PDF.

65. Kolmann, M., L. Hughes, P. Hernandez, D. Arcila, R. Betancur-R., M.H. Sabaj, H. Lopez-Fernandez & G. Ortí. Phylogenomics of piranhas and pacus (Serrasalmidae) uncovers how dietary convergence and parallelism obfuscate traditional morphological taxonomy. Systematic Biology. PDF.

64. Thomas, M. & R. Betancur-R. Ariidae. In: North American freshwater fishes: natural history, ecology, and conservation. Vol. 2. Johns Hopkins University Press. 

63. Davis, A., Pusey, B. & R. Betancur-R. Effects of adoption of freshwater residency on life history ecology of terapontid grunters. Freshwater Biology (DOI: 10.1111/fwb.13499). PDF.

62. da Silva, R. Pedraza-Marrón, C.R., I. Sampaio, R. Betancur-R, G. Gomes, Schneider, H. New insights about species delimitation in red snappers (Lutjanus purpureus and L. campechanus) using multilocus data. Molecular Phylogenetics and Evolution 147 (106780). PDF.

61. Hughes, L.C., Y. Cardozo, J. Sommer, R. Cifuentes, M. Cuello, G.M. Somoza, M. González-Castro, L.R. Malabaraba, V. Cussac, E.M. Habit, R. Betancur-R. & G. Ortí. 2020. Biogeography, habitat transitions and hybridization in a radiation of South American silverside fishes revealed by mitochondrial and genomic RAD data. Molecular Ecology 2020 (00):1–14. PDF.


60. Meléndez-Vazquez, F., M. Olmeda-Saldaña, J. Cruz, D. Arcila & R. Betancur-R. Effects of Hurricane Maria in hamlet (Serranidae: Hypoplectrus) communities in Puerto Rico. Ecological Indicators 107 (2019) 105591. PDF.

59. Ascarrunz, E., M. R. Sánchez-Villagra, R. Betancur-R. & M. Laurin. On trends and patterns in macroevolution: Williston’s law and the branchiostegal series of extant and extinct osteichthyan vertebrates. BMC Evolutionary Biology 19 (117). PDF.

**58. Pedraza-Marrón, C.R.* R. da Silva, J. Deeds, S.M. Van Belleghem, A. Mastretta-Yanes, O. Domínguez-Domínguez, R.A. Rivero-Vega, L. Lutackas, D. Murie, D. Parkyn, L. Bullock, K. Foss, H. Ortiz-Zuazaga, J. Narváez-Barandica, A. Acero, G. Gomes & Betancur-R., R.* Genomics overrules mitochondrial DNA, siding with morphology on a controversial case of species delimitation. Proceedings of the Royal Society B 286 (1900). *Equal contribution. PDF.

57. Rincon-Sandoval, M.*, Betancur-R., R.* & J. Maldonado-Ocampo. Comparative phylogeography of trans-Andean freshwater fishes based on genome-wide nuclear and mitochondrial markers. Molecular Ecology 28 (5): 1096-1115. *Equal contribution. PDF.

56. Marceniuk, A., J. Marchena, C. Oliveira & R. Betancur-R. Chinchaysuyoa, a new genus of the fish family Ariidae (Siluriformes), with redescription of Chinchaysuyoa labiata from Ecuador and a new species description from Peru. Zootaxa 4551 (3): 361-378. PDF.


**55. Ribeiro, E.D., A. Davis, R. A. Rivero-Vega, G. Ortí, & R. Betancur-R. 2018. Post-Cretaceous bursts of evolution along the benthic-pelagic axis in marine fishes. Proceedings of the Royal Society B: 285, 20182010. PDF.

54. Betancur-R., R.*, D. Arcila*, R. Vari, L. Hughes, C. Oliveira, M. Sabaj & G. Ortí. 2018. Phylogenomic incongruence, hypothesis testing, and taxonomic sampling: the monophyly of characiform fishes. Evolution: doi:10.1111/evo.13649. *Equal contribution. PDF. Evolution Digest article on the study by Montero-Mendieta and Dheer (2019) here. Also featured in ANSP news.

53. Riera, R., Tuset, V.M., R. Betancur-R.  Lombarte, A., Marcos, C., and Pérez-Ruzafa, A. Modelling alpha-diversities of coastal lagoon fish assemblages from the Mediterranean Sea. Progress in Oceanography. PDF. 

52. Rincon-Sandoval, M., R. Betancur-R. & J. Maldonado-Ocampo. Mitochondrial genomes of the headstanders Megaleporinus muyscorum (Steindachner 1900) & Megaleporinus obtusidens (Valenciennes 1837), (Characiformes, Anostomidae). Mitochondrial DNA Part B: Resources 3(2): 572–574. PDF.

**51. Hughes, L.C., G. Ortí, Y. Huang, Y. Sun, C.C. Baldwin, A.W. Thompson, D. Arcila, R. Betancur-R., C. Li, L. Becker et al. Comprehensive phylogeny of ray-finned fishes (Actinopterygii) based on transcriptomic and genomic data. Proceedings of the National Academy of Sciences 115 (24) 6249-6254. PDF, Supplement. PNAS comment by M. Alfaro.


50. Hench, K., W.O. McMillan, R. Betancur-R., and O. Puebla. 2017. Temporal changes in hamlet communities (Hypoplectrus spp., Serranidae) over 17 years. J Fish Biology 91: 1475-1490. PDF.

49. Zhong, B.* & Betancur-R., R.* 2017. Expanded taxonomic sampling coupled with Gene Genealogy Interrogation provides unambiguous resolution for the evolutionary root of angiosperms. Genome Biology and Evolution: 9(11): 3154–3161. *Equal contribution. PDF.

48. Betancur-R., R., E. O. Wiley, G. Arratia, A. Acero, N. Bailly, M. Miya, G. Lecointre & G. Ortí. Phylogenetic classification of bony fishes. BMC Evolutionary Biology 17(162): DOI: 10.1186/s12862-017-0958-3. PDF. Get the actual figures: Fig 1 & Fig 2.

47. Marceniuk, A., R. Cooke, A. Acero P. & R. Betancur-R. Taxonomic revision of the New World genus Ariopsis Gill (Siluriformes: Ariidae), with description of two new species. Zootaxa 4290 (1): 001–042. PDF. Press release El Nuevo Dia (in Spanish).

**46. Davis, A. & R. Betancur-R. Widespread ecomorphological convergence in multiple fish families spanning the marine-freshwater interface. Proceedings of the Royal Society series B. 284(1854). PDF. PNAS "Journal Club" analysis.

45. Arcila, D., G. Ortí, R. Vari, J. W. Armbruster, M. Stiassny, K. D. Ko, M. H. Sabaj, J. Lundberg, L. J. Revell & R. Betancur-R. Genome-wide interrogation advances resolution of recalcitrant groups in the Tree of Life. Nature Ecology & Evolution 1: 0020. PDF & Supplement. Featured in "News and Views" about the paper by S. Mirarab, news outlet, in Spanish, El Tiempo, Ciencia Cafe pa' Sumerce, UPR, Ciencia PR, and "Behind the Paper" post. For a GGI tutorial see here.  



44. Marceniuk, A., J. Merchena & R. Betancur-R. Cathorops festae (Boulenger 1898) (Siluriformes; Ariidae), a valid species from Ecuador and Peru. Zootaxa 4170 (1): 137–148. PDF.

43. Acero P., A. & R. Betancur-R. 2016. Ariidae, p. 1742–1750. In: The living marine resources of the Eastern Central Atlantic. Vol 3. FAO, Rome. K. E. Carpenter (ed.). FAO, Rome. PDF.

42. A. Polanco F., Acero P., A. & R. Betancur-R. 2016. No longer a circumtropical species: revision of the lizardfishes in the Trachinocephalus myops (Forster 1801) species complex, with description of a new species from the Marquesas Islands. Journal of Fish Biology 89(2): 1302-1323. PDF.

41. A. Davis, P. Unmack, R. Vari & R. Betancur-R. Herbivory promotes dental disparification and macroevolutionary dynamics in grunters (Teleostei: Terapontidae), a freshwater adaptive radiation. The American Naturalist 187(3): 320-333. PDF.

40. Sanciangco, M. D., K. Carpenter & R. Betancur-R. Phylogenetic placement of enigmatic percomorph families (Teleostei: Percomorphaceae). Molecular Phylogenetics and Evolution 94(2016): 505-576. PDF.



39. Martinez, P. A., J. P. Zurano, T. F. Amado, C. Penone, R. Betancur-R., C. J. Bidau & U. P. Jacobina. Chromosomal diversity in tropical reef fishes is related to body size and depth range. Molecular Phylogenetics and Evolution 93: 1-4. PDF.

**38. Betancur-R., R., G. Ortí & A. Pyron. Fossil-based comparative analyses reveal ancient marine ancestry erased by extinction in ray-finned fishes. Ecology Letters 18: 441–450. PDF. Blog discussing the paper.

37. Arcila, D.*, A. Pyron, J. Tyler, G. Ortí & R. Betancur-R.*. An evaluation of fossil tip-dating versus node-age calibrations in tetraodontiform fishes. Molecular Phylogenetics and Evolution 82(2015): 131-145. PDF. *Equal contribution.

36. Correa, S., R. Betancur-R., B. de Mérona & J. W. Armbruster. Diet shift of Red Belly Pacu (Piaractus brachypomus), a Neotropical fish, in the Sepik River Basin, Papua New Guinea. Neotropical Ichthyology. PDF.


35. Thompson, A.W., R. Betancur-R., H. López-Fernández & G. Ortí. A time-calibrated, multi-locus phylogeny of piranhas, pacus, and allies (Characiformes: Serrasalmidae) and a comparison of species tree methods. Molecular Phylogenetics and Evolution 81(2014): 242-257. PDF

34. Toledo-Hernández, C., X. Vélez-Zuazo, C. P. Ruiz-Diaz, A. R. Patricio, P. Mège, M. Navarro, A. B. Sabat, Betancur-R., R., and R. Papa. Population ecology and genetics of the invasive lionfish in Puerto Rico. Aquatic Invasions.

33. Betancur-R., R. & G. Ortí. Molecular evidence for the monophyly of flatfishes (Carangimorpharia: Pleuronectiformes). Molecular Phylogenetics and Evolution 73(2014): 18-22. PDF.   

32. Betancur-R., R., G. Naylor & G. Ortí. Conserved genes, sampling error, and phylogenomic inference. Systematic Biology 63(2): 257-262. PDF.


31. Betancur-R., R., C. Li, T. A Munroe, J. A. Ballesteros & G. Ortí. Addressing gene-tree discordance and non-stationarity to resolve a multi-locus phylogeny of the flatfishes (Teleostei: Pleuronectiformes). Systematic Biology 62(5):763–785. PDF.

30. Betancur-R., R., R.E. Broughton, E.O. Wiley, K. Carpenter, J.A. Lopez, C. Li, N.I. Holcroft, D. Arcila, M. Sanciangco, J. Cureton, F. Zhang, T. Buser, M. Campbell, T. Rowley, J.A. Ballesteros, G. Lu, T. Grande, G. Arratia & G. Ortí. The tree of life and a new classification of bony fishes. PLoS Currents Tree of Life. Pub Med Version. Press releases: Science Daily, e! Science News, PLoS Blogs.

29. Broughton, R.E., Betancur-R., R., C. Li, G. Arratia, & G. Ortí. Multi-locus phylogenetic analysis reveals the pattern and tempo of bony fish evolution. PLoS Currents Tree of Life.


**28. Betancur-R., R., G. Ortí, A. M. Stein, A. P. Marceniuk & R. A. Pyron. Apparent signal of competition limiting diversification after ecological transitions from marine to freshwater habitats. Ecology Letters 15(8): 822-830. PDF & other files.

27. Robertson, D.R. & R. Betancur-R. Sea Catfishes (Ariidae). In: Shorefishes of the Greater Caribbean: identification guide. Electronic book (app. v1.0). 

26. Marceniuk, A. P., Betancur-R., R., A. Acero P. & J. Muriel-Cunha. Review of the genus Cathorops (Siluriformes, Ariidae) from the Caribbean and the Atlantic South America, with description of a new species. Copeia 2012(1): 77-97. PDF. 


25. Li, C., Betancur-R., R., W. L. Smith & G. Ortí. Monophyly and interrelationships of Snook and Barramundi (Centropomidae sensu Greenwood) and five new markers for fish phylogenetics. Molecular Phylogenetics and Evolution 60 (2011): 463–471. PDF.

24. Betancur-R., R.,  A. Hines, A. Acero P., G. Ortí, A.E. Wilbur & D.W. Freshwater. 2011. Reconstructing the lionfish invasion: insights into Greater Caribbean biogeography. Journal of Biogeography 38: 1281-1293. PDF. Press release in Frontiers in Ecology and the Environment 2011 9(6). PDF.


23. Betancur-R., R., A. Acero P., H. Duque-Caro & S. R. Santos. Phylogenetic and morphological analyses of a coastal fish reveal a marine biogeographic break of terrestrial origin in the Southern Caribbean. PLoS ONE 5(7): e11566. doi:10.1371/journal.pone.0011566.  PDF

22. Betancur-R., R. Molecular phylogenetics supports multiple evolutionary transitions from marine to freshwater habitats in ariid catfishes. Molecular Phylogenetics and Evolution 55(1): 249-258. PDF.


21. Betancur-R., R. & J.W. Armbruster. Molecular clocks provide new insights into the evolutionary history of galeichthyine sea catfishes. Evolution 63(5): 1232-1243. PDF. Missing Appendix A from article here

20. Marceniuk, A. P., R. Betancur-R. & A. Acero P. Description of a new species of Cathorops (Siluriformes; Ariidae) from El Salvador, with redescription of four species of the genus from North and Central American Pacific. Bulletin of Marine Science 85(3): 245-280. PDF.

19. González, J., M. Grijalba-Bendeck, A. Acero P. & R. Betancur-R. The invasive Indo-Pacific lionfish, Pterois volitans/miles complex, in the southern Caribbean Sea. Aquatic Invasions 4(3): 507-510.

18. Betancur-R., R. Molecular phylogenetics and evolutionary history of ariid catfishes revisited: a comprehensive sampling. BMC Evolutionary Biology 2009 9: 175. Highly accessed paper. PDF

17. Betancur-R., R. & P.J. Kailola. Ariidae. In: Encyclopedia of flora and fauna of Bangladesh. Ed.: A. K. Ataur Rahman. Vol. 24. Asian Society of Bangladesh. Dhaka, Bangladesh, pp. 95–115. 


16. Betancur-R., R., A.P. Marceniuk & P. Béarez. Taxonomic Status and Redescription of the Gillbacker Sea Catfish (Siluriformes: Ariidae: Sciades parkeri). Copeia 2008(4): 827–834. PDF.

15. Marceniuk, A.P. & R. Betancur-R. Revision of the species of the genus Cathorops (Siluriformes; Ariidae) from Mesoamerica and the Central American Caribbean, with description of three new species. Neotropical Ichthyology, 6(1): 25–44.


14. Betancur-R., R., A. Acero P., E. Bermingham & R. Cooke. Systematics and biogeography of New World sea catfishes (Siluriformes: Ariidae) as inferred from mitochondrial, nuclear, and morphological evidence. Molecular Phylogenetics and Evolution 45(1): 339–357. PDF.

13. Betancur-R., R. & P.W. Willink. A new freshwater ariid (Otophysi: Siluriformes) from the Río Usumacinta basin. Copeia 2007(4): 818–828. PDF.

12. Acero P., A.* & R. Betancur-R.* Monophyly, affinities, and subfamilial clades of sea catfishes (Siluriformes: Ariidae). Ichthyological Exploration of Freshwaters 18(2): 133–143. *Both authors have contributed equally to the work, authorship in alphabetical order.


11. Betancur-R., R. & A. Acero P. A new species of Notarius (Siluriformes: Ariidae) from the Colombian Pacific. Zootaxa 1249: 47–59. 

10. Acero P., A. & R. Betancur-R. Real identity of the northern Colombian endemic sea catfish Galeichthys bonillai Miles, 1945 (Siluriformes: Ariidae). Cybium 30(3): 215–219. PDF.


9. Betancur-R., R. & A. Acero P. Description of Cathorops mapale, a new species of sea catfish (Siluriformes: Ariidae) from the Colombian Caribbean, based on morphological and mitochondrial evidence. Zootaxa 1045: 45–60.

8. Acero P., A., R. Betancur-R., A. Polanco F. & N. Chaparro. Diferenciación sexual temprana a nivel óseo en dos géneros de bagres marinos (Pisces: Ariidae). Memoria de la Fundación La Salle de Ciencias Naturales 163: 37–43. PDF.


7. Betancur-R., R. & A. Acero P. Description of Notarius biffi n. sp. and redescription of N. insculptus (Jordan and Gilbert) (Siluriformes: Ariidae) from the eastern Pacific, with evidence of monophyly and limits of Notarius. Zootaxa 703: 1–20.

6. Betancur-R., R., A. Acero & L.M. Mejía-Ladino. Sistemática filogenética preliminar de algunos bagres marinos (Siluriformes: Ariidae) neotropicales. Memoria de la Fundación La Salle de Ciencias Naturales 158: 61–85. PDF.


5. Mejía-Ladino, L.M., R. Betancur-R., A. Acero P. & M. Grijalba B. Presencia de Epinephelus nigritus (Pisces: Serranidae) en el Caribe Colombiano, incluyendo una clave para las especies de Epinephelus en el área. Boletín Ecotrópica 37: 31–39. PDF.

4. Mejía-Ladino, L.M., R. Betancur-R., A. Acero & E. Zarza. Presencia de Arius grandicassis en el Caribe colombiano, incluyendo una clave para la dentificación de los peces de la familia Ariidae en el área. Boletín Instituto de Investigaciones Marinas y Costeras 31: 5–13.


3. Acero P., A. & R. Betancur-R. Description of Arius neogranatensis, a new species of sea catfish from Colombia, including an identification key for Caribbean ariid fishes. Aqua, International Journal of Ichthyology 6(1): 5–10. PDF.

2. Acero P., A. & R. Betancur-R. Arius cookei, a new species of ariid catfish from the tropical American Pacific. Aqua, International Journal of Ichthyology 5(4): 133–138. PDF.


1. Betancur-R., R., A. Acero P. & L.M. Mejía-Ladino. El pez serránido Gonioplectrus hispanus (Epinephelinae: Epinephelini) en Colombia: primer registro para las costas continentales caribeñas. Boletín Ecotrópica 35: 25–30. PDF.