Abstract
Dendrophryniscus brevipollicatus Jiménez de la Espada is a Neotropical bufonid endemic to a small range of the Brazilian Coastal Atlantic Forest, with reduced body size for the family and bromeligenous habit. We reviewed the taxonomic status of populations of D. brevipollicatus from states of Rio de Janeiro and São Paulo, including some continental islands, based on external morphology. We tested our morphological species by a DNA-barcoding approach with sequences of 16S RNA ribosomal gene fragment. DNA-barcoding analysis included other recognized Dendrophryniscus species and was concordant with morphological species diagnosed in our review. Intraspecific genetic distances ranged from 0 to 2.72 % (± 0.91 %). Interspecific distances ranged from 3.35 % (± 0.90 %) to 20.15 (± 2.23 %). Optimal threshold values ranged from 2.8 % to 3.0 % and barcode gap analysis showed that for all individuals the furthest intraspecific distances was always lower than the closest non-conspecific individual. Seven distinct species were recognized. A neotype for D. brevipollicatus was designated and described; the type locality was determined for the Açude da Solidão (22º57’S, 43º17’W, Datum WGS 84; 410 m altitude), Parque Nacional da Tijuca, Municipality of Rio de Janeiro, State of Rio de Janeiro, Brazil. Two species were revalidated: D. imitator (Miranda-Ribeiro), with designation of a lectotype and descriptions of the lectotype and of a topotype from the restricted type locality, Alto da Serra (23o46’S, 46o19’W, Datum WGS 84, 800 m altitude), Municipality of Paranapiacaba, State of São Paulo, Brazil; and D. lauroi (Miranda-Ribeiro), with descriptions of the lectotype and of a topotype from the type locality, Municipality of Angra dos Reis (22o54’S, 44o20’W, Datum WGS 84; 25 m altitude), State of Rio de Janeiro, Brazil. Four new species were described: D. davori sp. nov., from Baixo Caledônia (22º21’S, 42º35’W, Datum WGS 84; 1600 m altitude), Municipality of Nova Friburgo, State of Rio de Janeiro, Brazil; D. haddadi sp. nov., from Parque Estadual da Serra do Mar, Núcleo Santa Virgínia (23o21’S, 45o08’W, Datum WGS 84; 970 m altitude), Municipality of São Luís do Paraitinga, State of São Paulo, Brazil; D. izecksohni sp. nov., from Campo de Fruticultura da Bocaina (currently Núcleo Senador Vergueiro), Municipality of São José do Barreiro (22º38’S, 44º34’W, Datum WGS 84, 540 m altitude), State of São Paulo, Brazil; and D. jureia sp. nov., from Estação Ecológica da Juréia-Itatins—Núcleo Rio Verde (24º22’S, 47º04’W, Datum WGS 84; 32 m altitude), Municipality of Iguape, State of São Paulo, Brazil. Geographical distributions of all species are provided.
References
Bokermann, W.C.A. (1966) Lista anotada das localidades tipo de anfíbios Brasileiros. Serviço de Documentação da Reitoria da Universidade de São Paulo, São Paulo, 183 pp.
Boulenger, G.A. (1882) Catalogue of the Batrachia Salientia s. Ecaudata in the Collection of the British Museum. 2nd Edition. Taylor and Francis, London, 503 pp.
Braun, P.C. & Braun, C.S. (1979) Presença de Dendrophryniscus brevipollicatus Espada, 1870 no Estado do Rio Grande do Sul, Brasil. (Anura, Bufonidae). Iheringia, Série Zoologia, 54, 47–52.
Brown, S.D., Collins, R.A., Boyer, S., Lefort, M., Malumbres-Olarte, J., Vink, C.J. & Cruickshank, R.H. (2012) SPIDER: An R package for the analysis of species identity and evolution, with particular reference to DNA barcoding. Molecular Ecology Resources, 12, 562–565.
https://doi.org/10.1111/j.1755-0998.2011.03108.x
Caramaschi, U. (2012a) A new species of beaked toad, Rhinella (Anura: Bufonidae), from the State of Bahia, Brazil. Zoologia, 29, 343–348.
https://doi.org/10.1590/S1984-46702012000400007
Caramaschi, U. (2012b) The generic position of Rhinella skuki Caramaschi, 2012 (Anura, Bufonidae). Zootaxa, 3527 (1), 88.
https://doi.org/10.11646/zootaxa.3527.1.9
Carvalho, A.L. (1949) Notas sobre os hábitos de Dendrophryniscus brevipollicatus Espada (Amphibia, Anura). Revista Brasileira de Biologia, 9, 223–227.
Carvalho-e-Silva, A.M.P.T., Mongin, M.M., Izecksohn, E. & Carvalho-e-Silva, S.P. (2010) A new species of Dendrophryniscus Jiménez-de-la-Espada from the Parque Nacional da Serra dos Órgãos, Teresópolis, State of Rio de Janeiro, Brazil (Amphibia, Anura, Bufonidae). Zootaxa, 2632 (1), 46–52.
https://doi.org/10.11646/zootaxa.2632.1.2
Clarke, B.T. (1996) Small size in amphibians: its ecological and evolutionary implications. In: Miller, P.J. (Ed.), Miniature Vertebrates: The Implications of Small Body Size. Oxford Science Publications, Oxford, pp. 201–224.
Cochran, D.M. (1955 [1954]) Frogs of Southeastern Brazil. Bulletin of the United States National Museum, 206, 1–423.
https://doi.org/10.5479/si.03629236.206.1
Cruz, C.A.G. & Fusinatto, L.A. (2008) A new species of Dendrophryniscus Jiménez de la Espada, 1871 (Amphibia, Anura, Bufonidae) from the Atlantic Forest of Rio Grande do Sul, Brazil. South American Journal of Herpetology, 3, 22–26.
https://doi.org/10.2994/1808-9798(2008)3[22:ANSODJ]2.0.CO;2
Fabrezi, M. & Alberch, P. (1996) The carpal elements of anurans. Herpetologica, 52, 188–204.
Fouquet, A., Recoder, R.S., Teixeira, Jr., M., Cassimiro, J., Amaro, R.C., Camacho, A., Damasceno, R.P., Carnaval, A.C.O.Q., Moritz, C. & Rodrigues, M.T. (2012) Molecular phylogeny and morphometric analyses reveal deep divergence between Amazonia and Atlantic Forest species of Dendrophryniscus. Molecular Phylogenetics and Evolution, 62, 826–838.
https://doi.org/:10.1016/j.ympev.2011.11.023
Frost, D.R. (2019) Amphibian Species of the World: An Online Reference. Version 6.0. American Museum of Natural History, New York. Available from: http://research.amnh.org/herpetology/amphibia/index.html (accessed 29 May 2019)
Graybeal, A. & Cannatella, D.C. (1995) A new taxon of Bufonidae from Peru, with descriptions of two new species and a review of the phylogenetic status of supraspecific bufonid taxa. Herpetologica, 51, 105–131.
Hanken, J. & Wake, D.B. (1993) Miniaturization of body size: organismal consequences and evolutionary significance. Annual Review of Ecology and Systematics, 24, 501–519.
https://doi.org/10.1146/annurev.es.24.110193.002441
Heyer, W.R., Rand, A.S., Cruz, C.A.G., Peixoto, O.L. & Nelson, C.E. (1990) Frogs of Boracéia. Arquivos de Zoologia, 31, 231–410.
ICZN [International Commission on Zoological Nomenclature] (1999) International Code of Zoological Nomenclature. 4th Edition. International Trust for Zoological Nomenclature, London, 306 pp.
Izecksohn, E. (1968) Nova espécie de Dendrophryniscus do Estado do Rio de Janeiro (Amphibia, Salientia). Revista Brasileira de Biologia, 28, 357–362.
Izecksohn, E. (1971) Variação no padrão vertebral de Dendrophryniscus brevipollicatus Espada (Amphibia, Anura). Arquivos do Museu Nacional, 54, 129–138.
Izecksohn, E. (1994 [1993]) Três novas espécies de Dendrophryniscus Jiménez de la Espada das regiões sudeste e sul do Brasil (Amphibia, Anura, Bufonidae). Revista Brasileira de Zoologia, 10, 473–488.
https://doi.org/10.1590/S0101-81751993000300015
Izecksohn, E. & Cruz, C.A.G. (1972) Notas sobre os girinos de Dendrophryniscus leucomystax Izecksohn e D. brevipollicatus Espada (Amphibia, Anura, Bufonidae). Arquivos da Universidade Federal Rural do Rio de Janeiro, 2, 63–69.
Jiménez de la Espada, M. (1870) Fauna neotropicalis species quaedam nondum cognitae. Jornal de Sciências, Mathemáticas, Physicas e Naturaes, 3, 57–65.
Katoh, K., Rozewicki, J. & Yamada, K.D. (2017) MAFFT online service: multiple sequence alignment, interactive sequence choice and visualization. Briefings in Bioinformatics, bbx1o8.
https://doi.org/1o.1o93/bib/bbx108
Kumar, S., Stecher, G. & Tamura, K. (2016) MEGA7: Molecular Evolutionary Genetics Analysis Version 7.0 for Bigger Datasets. Molecular Biology and Evolution, 33, 1870–1874.
https://doi.org/10.1093/molbev/msw054
Lyra, M.L., Haddad, C.F.B. & de Azeredo-Espin, A.M.L. (2017) Meeting the challenge of DNA barcoding Neotropical amphibians: polymerase chain reaction optimization and new COI primers. Molecular Ecology Resources, 17, 966–980.
https://doi.org/10.1111/1755-0998.12648
Malagoli, L.R., Trevine, V., Condez, T.H., Centeno, F.C., Berneck, B.M. & Haddad, C.F.B. (2017) Notes on the breeding behaviour of the Neotropical toadlet Dendrophryniscus brevipollicatus (Anura: Bufonidae), a bromeliad phytotelmata specialist. Herpetology Notes, 10, 31–39.
Meier, R., Zhang, G. & Ali, F. (2008) The use of mean instead of smallest interspecific distances exaggerates the size of the “barcoding gap” and leads to misidentification. Systematic Biology, 57 (5), 809–813.
https://doi.org/10.1080/10635150802406343
Metscher, B.D. (2009) MicroCT for comparative morphology: simple staining methods allow high-contrast 3D imaging of diverse non-mineralized animal tissues. BMC Physiology, 9, 11.
https://doi.org/10.1186/1472-6793-9-11
Meyer, C.P. & Paulay, G. (2005) DNA barcoding: error rates based on comprehensive sampling. PLoS Biology, 3 (12), 2229–2238.
https://doi.org/10.1371/journal.pbio.0030422
Miranda-Ribeiro, A. (1920) Os Brachycephalideos do Museu Paulista (com tres especies novas). Revista do Museu Paulista, 12, 307–316.
https://doi.org/10.5962/bhl.part.22255
Miranda-Ribeiro, A. (1926) Notas para servirem ao estudo dos gymnobatrachios (Anura) brasileiros. Arquivos do Museu Nacional, 27, 1–227, 22 pls.
Miranda-Ribeiro, P. (1955) Tipos das espécies e subespécies do Prof. Alípio de Miranda Ribeiro depositados no Museu Nacional (Com uma relação dos gêneros, espécies e subespécies descritos). Arquivos do Museu Nacional, 42, 389–417.
Napoli, M.F. (2005) A new species allied to Hyla circumdata (Anura: Hylidae) from Serra da Mantiqueira, Southeastern Brazil. Herpetologica, 61, 63–69.
Palumbi, S., Martin, A., Romano, S., McMillan, W.O., Stice, L. & Grabowski, G. (1991) The simple fool’s guide to PCR. Version 2. University of Hawaii Zoology Department, Honolulu, 43 pp.
Portik, D.M. & Papenfuss, T.J. (2015) Historical biogeography resolves the origins of endemic Arabian toad lineages (Anura: Bufonidae): Evidence for ancient vicariance and dispersal events with the Horn of Africa and South Asia. BMC Evolutionary Biology, 15, 1–19.
https://doi.org/10.1186/s12862-015-0417-y
Pyron, R.A. & Wiens, J.J. (2011) A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of advanced frogs, salamanders, and caecilians. Molecular Phylogenetics and Evolution, 61, 543–583.
https://doi.org/10.1016/j.ympev.2011.06.012
R Core Team (2018) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna. Available from: https://www.R-project.org/ (accessed 20 August 2018)
Recoder, R.S., Teixeira Jr., M., Cassimiro, J., Camacho, A. & Rodrigues, M.T. (2010) A new species of Dendrophryniscus (Amphibia, Anura, Bufonidae) from the Atlantic Rainforest of Southern Bahia, Brazil. Zootaxa, 2642 (1), 36–44.
https://doi.org/10.11646/zootaxa.2642.1.3
Sabaj, M.H. (2016) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an online reference. Version 6.5 (16 August 2016). American Society of Ichthyologists and Herpetologists, Washington. Available from: http://www.asih.org/ (accessed 20 August 2018)
Srivathsan, A. & Meier, R. (2011) On the inappropriate use of Kimura 2 parameter (K2P) divergences in the DNA-barcoding literature. Cladistics, 28, 190–194.
https://doi.org/10.1111/j.1096-0031.2011.00370.x
Van Bocxlaer, I., Biju, S.D., Loader, S.P. & Bossuyt, F. (2009) Toad radiation reveals into-India dispersal as a source of endemism in the Western Ghats-Sri Lanka biodiversity hotspot. BMC Evolutionary Biology, 9 (e131), 1–10.
https://doi.org/10.1186/1471-2148-9-131
Van Bocxlaer, I., Loader, S.P., Roelants, K., Biju, S.D., Menegon, M. & Bossuyt, F. (2010) Gradual adaptation toward a range-expansion phenotype initiated the global radiation of toads. Science, 327, 679–682.
https://doi.org/10.1126/science.1181707
Vences, M., Thomas, M., Bonett, R.M. & Vieites, D.R. (2005) Deciphering amphibian diversity through DNA barcoding: chances and challenges. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 360, 1859–1868.
https://doi.org/10.1098/rstb.2005.1717
Yeh, J. (2002) The effect of miniaturized body size on skeletal morphology in frogs. Evolution, 56, 628–41.
https://doi.org/10.1111/j.0014-3820.2002.tb01372.x