Abstract
The Neotropical cichlid genus Gymnogeophagus Ribeiro, 1918 is revised. The following species are considered valid and are redescribed: G. rhabdotus (Hensel, 1870), G. gymnogenys (Hensel, 1870), G. labiatus (Hensel, 1870), G. balzanii (Perugia, 1891) and G. australis (Eigenmann, 1907). In addition, two new species are described: G. lacustris, sp. n., from the coastal region of southern Brazil and G. meridionalis, sp. n., from the lower Rio Paraná and Rio Uruguay systems. Lectotypes are designated for Geophagus bucephalus Hensel, 1870 (= G. labiatus) and Geophagus scymnophilus Hensel, 1870 (= G. labiatus) and the phylogenetic relationships among the species are analyzed. An osteological description based mainly on G. meridionalis is presented. A map of species distribution and a key to the species are provided.
Revision of the neotropical cichlid genus Gymnogeophagus Ribeiro, 1918, with descriptions of two new species (Pisces, Perciformes)
Reis, R. E.I; L. R. MalabarbaII
IMuseu Anchieta, Setor de Ictiologia, Av. Nilo Peçanha, 1521, C. Postal 358, 90.000 Porto Alegre, Brazil and Museu de Ciências da Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, C. Postal 1429, 90.000 Porto Alegre, Brazil
IIMuseu de Ciências da Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, C. Postal 1429, 90.000 Porto Alegre, Brazil and Centro de Ecologia, Instituto de Biociências, UFRGS, Av. Paulo Gama, s/nº, 90.000 Porto Alegre, Brazil
ABSTRACT
The Neotropical cichlid genus Gymnogeophagus Ribeiro, 1918 is revised. The following species are considered valid and are redescribed: G. rhabdotus (Hensel, 1870), G. gymnogenys (Hensel, 1870), G. labiatus (Hensel, 1870), G. balzanii (Perugia, 1891) and G. australis (Eigenmann, 1907). In addition, two new species are described: G. lacustris, sp. n., from the coastal region of southern Brazil and G. meridionalis, sp. n., from the lower Rio Paraná and Rio Uruguay systems. Lectotypes are designated for Geophagus bucephalus Hensel, 1870 (= G. labiatus) and Geophagus scymnophilus Hensel, 1870 (= G. labiatus) and the phylogenetic relationships among the species are analyzed. An osteological description based mainly on G. meridionalis is presented. A map of species distribution and a key to the species are provided.
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ACKNOWLEDGMENTS
We are much indebted to the following persons and institutions for the loan and exchange of specimens, information and other assistance: L. H. Amato (CECN); N. Bellisio (MACN); B. Brewster BM(NH); H. A. Britski (MZUSP); J. R. Casciotta (CIMLP); J. L. Figueiredo (MZUSP); K. E. Hartel (MCZ); T. Iwamoto (CAS); S. O. Kullander (NRM); V. Mahnert (MHNG); F. R. Meyer (MAPA); H.-J. Paepke (ZMB); R. J. Schmitz (FMNH); W. F. Smith-Vaniz (ANSP) and M. L. J. Stiassny (MCZ).
The comments and criticism of P. A. Buckup (MAPA); C. A. S Lucena (MCP); Z. M. S. Lucena (MCP); F. A. Pires (DZUFRGS) and specially those of R. P. Vari (USNM), contributed greatly to the improvement of this paper.
Several photographs were made by Mr. José Schuster Filho from Pontifícia Universidade Católica do Rio Grande do Sul.
Some collecting expeditions associated with this study were partially supported by Fundação de Amparo à Pesquisa do Rio Grande do Sul, Pontifícia Universidade Católica do Rio Grande do Sul and Museu Anchieta.
COMPARATIVE MATERIAL EXAMINED
Aequidens portalegrensis (Hensel, 1870)
MAPA 0258 (1 ex.), MAPA 0673 (2 ex.), MAPA 1888 (4 ex.), MAPA 2270 (1 Cl&St)
Cichlasoma dimerus (Heckel, 1840)
MAPA 1282 (1 ex.)
Cichlasoma facetum (Jenyns, 1842)
MAPA 1959 (1 ex.), MAPA 2160 (1 ex.), MAPA 2269 (2 Cl&St)
Cichlasoma pusillum Kullander, 1983
MAPA 2310 (8 ex.)
Crenicichla lacustris (Castelnau, 1855)
MAPA 0603 (1 ex.), MAPA 0777 (1 ex.), MAPA 0826 (1 ex.)
Crenicichla lepidota Heckel, 1840
MAPA 0563 (1 ex.), MAPA 0956 (1 ex.), MAPA 1948 (1 ex.), MAPA 2273 (1 Cl&St)
Papiliochromis ramirezi (Myers & Harry, 1948)
MAPA 2277 (2 Cl&St)
Symphysodon discus Heckel, 1840
MAPA 2275 (1 Cl&St)
Pterophylum sp.
MAPA 2276 (2 Cl&St)
Apistogramma sp.
MCP 9380 (2 ex.)
References
- Axelrod, H. & W. Vorderwinkler, 1974. Encyclopedia of tropical fishes. TFH Publications, Neptune City, 631p. il.
- Beurlen, K. 1970. Geologie von Brasilien. Sttutgart, 444p.
- Boulenger, G. A. 1895. Abstract of a report on large collection of fishes formed by Dr. C. Ternetz at various localities in Matto Grosso and Paraguay; with description of new species. Proc. Zool. Soc. London, London, 2(34):523-9.
- Cope, E. D. 1894. On the fishes obtained by naturalist expedition in Rio Grande do Sul. Proc. Amer. Philo. Soc, Philadelphia, 33(144):84-108 pls. 4-9.
- Eigenmann, C. H. 1907. On a collection of fishes from Buenos Aires. Proc. Wash. Acad. Sci., Washington, 8:449-58, pls. 21-3.
- Fowler, H. W. 1954. Os peixes de água doce do Brasil. Arqs. zool. Est. S. Paulo, São Paulo, 9:1-400.
- Gosse, J. P. 1963. Descriptions de deux cichlides nouveaux de la region Amazonienne. Bull. Inst. r. Sci. nat. Belg., Bruxelles, 39(35):1-7.
- Gosse, Y. P. 1971. Revision du genre Retroculus (Castelnau, 1855) (Pisces, Cichlidae) designation d'un neotype de Retroculus lapidifer (Castelnau, 1855) et descriptions de deux espèces nouvelles. Bull. Inst. r. Sci. nat. Balg., Bruxelles, 47(43):1-13, pls. 1-5.
- Gosse, Y. P. 1976. Revision du genre Geophagus (Pisces, Cichlidae). Mém. Acad. r. Bélg. Cl. Sci., Bruxelles, 19(3):1-172.
- Hennig, W. 1966. Phylogenetic Systematics. Univ. illinois Press, Illinois, XV + 263p.
- Hensel, R. 1867. Beiträge zur näheren Kenntnis der brasilianischen Provinz São Pedro do Rio Grande do Sul. Zeitschrift der Gesellschaft für Erdkunde, Berlin, 2:227-69.
- Hensel, R. 1870. Beiträge zur Kenntnis der Wilbertiere Südbrasiliens Fische. Archiv. F. Naturgesch., 7:50-91.
- Iwaszkiw, J. M. & E. D. Sendra, 1981. Nuevas citas para la ictiofauna de la laguna Chascomús y análisis de las relaciones merísticas en Gymnogeophagus australis (Gosse) (Cichlidae) y Plecostomus commersonii (Val.) (Loricariidae). Limnobios, La Plata, 2(4):247-52.
- Jost, H. 1971. O quaternário da planície costeira do Rio Grande do Sul. I - A Região norte. XXV Congresso Brasileiro de Geologia, Anais, São Paulo, :53-62.
- Kullander, S. O. 1977. Papiliochromis gen n., a new genus of South American Cichlid fish (Teleostei, Perciformes). Zool. Scripta, 6:253-4.
- Kullander, S. O. 1980a. A redescription of the South American cichlid fish Papiliochromis ramirezi (Myers & Harry, 1948) (Teleostei: Cichlidae). Studies on Neotropical Fauna and Environment, Amsterdam, (15):91-108.
- Kullander, S. O. 1980b. A taxonomical study of the genus Apistogramma Regan, with a revision of the Brazilian and Peruvian species. Bonn. zool. Monogr., 14:1-152.
- Kullander, S. O. 1981. Cichlid fauna from the La Plata basin. Part I. Collections from Paraguay in the Muséum d'Histoire naturelle de Genève. Rev. suisse Zool., 88(3):675-92.
- Kullander, S. O. 1983. Taxonomic studies on the percoid freshwater fish family Cichlidae in South America. Part II. Review of the South America Cichlidae. Stockholm, University of Stockholm, p.297-440. Ph. D. Thesis.
- Lowe-McConnell, R. H. 1975. Fish communities in tropical freshwater. Longman, New York, xvii + 338p.
- Pereira, A. N. 1983. Estudio cromosomico de Gymnogeophagus rhabdotus (Perciformes, Cichlidae). Res. com. jorn. c. nat., Montevideo, p.8.
- Perugia, A. 1891. Appunti sopra alcuni pesci sud-americani conservati nel Museo Civico di Storia Naturale di Genova. Ann. Mus. Ci. Sto. Nat. Genova, Genova, 2nd serie, 10:605-57.
- Ribeiro, A. M. 1918. Dois gêneros e três espécies novas de peixes Brasileiros determinados nas coleções do Museu Paulista. Revta. Mus. Paulista, São Paulo, 10:787-91.
- Taylor, W. R. 1967. An enzyme method of clearing and staining small vertebrates. Proc. U.S. Nat. Mus., Washington, 122(3596):1-17.
- Wiley, E.O. 1981. Phylogenetics, the theory and practice of phylogenetics systematics. John Wiley & Sons, New York, xv + 439p.
Publication Dates
-
Publication in this collection
20 Aug 2009 -
Date of issue
1987