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    Simpsonichthys suzarti sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual fish from the Rio Pardo floodplains, northeastern Brazil

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    Costa, Wilson J. E. M. (2004): Simpsonichthys suzarti sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual fish from the Rio Pardo floodplains, northeastern Brazil. Zootaxa 468: 1-7, DOI: 10.5281/zenodo.15784

    Kryptolebias, a substitute name for Cryptolebias Costa, 2004 and Kryptolebiatinae, a substitute name for Cryptolebiatinae Costa, 2004 (Cyprinodontiformes: Rivulidae)

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    Costa, Wilson J. E. M. (2004): Kryptolebias, a substitute name for Cryptolebias Costa, 2004 and Kryptolebiatinae, a substitute name for Cryptolebiatinae Costa, 2004 (Cyprinodontiformes: Rivulidae). Neotropical Ichthyology 2 (2): 107-108, DOI: 10.1590/S1679-62252004000200009, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200009&lng=en&tlng=e

    FIGURE 3 in Simpsonichthys suzarti sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual fish from the Rio Pardo floodplains, northeastern Brazil

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    FIGURE 3. Geographic distribution of species of the S. constanciae group.Published as part of Costa, Wilson J. E. M., 2004, Simpsonichthys suzarti sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual fish from the Rio Pardo floodplains, northeastern Brazil, pp. 1-7 in Zootaxa 468 on page 6, DOI: 10.5281/zenodo.15784

    Figure 5 in Taxonomic revision of the seasonal killifish genus Nothobranchius from Zanzibar, East Africa (Cyprinodontoidei: Aplocheilidae)

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    Figure 5. Nothobranchius melanospilus (Pfeffer 1896), BMNH 2016.12.2.1, lectotype, female, 35.2 mm SL.Published as part of Costa, Wilson J. E. M., 2017, Taxonomic revision of the seasonal killifish genus Nothobranchius from Zanzibar, East Africa (Cyprinodontoidei: Aplocheilidae), pp. 1609-1624 in Journal of Natural History 51 (27-28) on page 1617, DOI: 10.1080/00222933.2017.1330976, http://zenodo.org/record/518218

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Fig. 2 in Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil

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    Fig. 2. Geographic distribution of species of the genus Rivulus in the Paraná, Paraguay, and upper Araguaia river basins, central Brazil.Published as part of Costa, Wilson J. E. M., 2005, Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil, pp. 69-82 in Neotropical Ichthyology 3 (1) on page 72, DOI: 10.1590/S1679-62252005000100003, http://zenodo.org/record/464730

    Fig. 7. Rivulus litteratus, UFRJ 5957 in Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil

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    Fig. 7. Rivulus litteratus, UFRJ 5957, female, paratype, 25.6 mm SL (one day after collection); Brazil: Mato Grosso: Alto Araguaia. Photo by W. J. E. M. Costa.Published as part of Costa, Wilson J. E. M., 2005, Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil, pp. 69-82 in Neotropical Ichthyology 3 (1) on page 76, DOI: 10.1590/S1679-62252005000100003, http://zenodo.org/record/464730

    Fig. 8. Rivulus rutilicaudus, UFRJ 5965 in Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil

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    Fig. 8. Rivulus rutilicaudus, UFRJ 5965, male, holotype, 22.9 mm SL (one day after collection); Brazil: Goiás: Serranópolis. Photo by W. J. E. M. Costa.Published as part of Costa, Wilson J. E. M., 2005, Seven new species of the killifish genus Rivulus (Cyprinodontiformes: Rivulidae) from the Paraná, Paraguay and upper Araguaia river basins, central Brazil, pp. 69-82 in Neotropical Ichthyology 3 (1) on page 78, DOI: 10.1590/S1679-62252005000100003, http://zenodo.org/record/464730

    Figure 10 in Monophyly and taxonomy of the Neotropical seasonal killifish genus Leptolebias (Teleostei: Aplocheiloidei: Rivulidae), with the description of a new genus

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    Figure 10. Leptolebias itanhaensis, male, not preserved; Brazil, Estado de São Paulo, Itanhaém (photo by G. C. Brazil).Published as part of Costa, Wilson J. E. M., 2008, Monophyly and taxonomy of the Neotropical seasonal killifish genus Leptolebias (Teleostei: Aplocheiloidei: Rivulidae), with the description of a new genus, pp. 147-160 in Zoological Journal of the Linnean Society 153 (1) on page 153, DOI: 10.1111/j.1096-3642.2008.00380.x, http://zenodo.org/record/463493
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