Zootaxa,Phylogeny of Species Formerly Assigned

Zootaxa,Phylogeny of Species Formerly Assigned

Zootaxa 1618: 1–50 (2007) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2007 · Magnolia Press ISSN 1175-5334 (online edition) Phylogeny of species formerly assigned to the genus Archocentrus (Perciformes: Cichlidae) JUAN J. SCHMITTER-SOTO El Colegio de la Frontera Sur (ECOSUR), A.P. 424, MX-77000 Chetumal, QR, Mexico [email protected] Table of contents Abstract . 1 Resumen . 1 Introduction . 2 Material and methods . 3 Character description and analysis . 4 Phylogeny . 43 Discussion . 45 Acknowledgments . 50 References . 50 Abstract A phylogeny for 28 cichlid species that have been included in or near the same clade as Archocentrus centrarchus (type species of the genus) in previous phylogenetic analyses is presented, based on 98 morphological characters (osteology, gut- coiling pattern, pigmentation, squamation, meristics, and others), plus one cytogenetic character. Monophyly is supported for Archocentrus sensu stricto, Cryptoheros, Hypsophrys, Amatitlania, and Rocio; the relationships among these genera are not resolved. The three subgenera of Cryptoheros are also supported; Cr. panamensis is the sister group of the rest of the species in the genus. Within Cryptoheros (Cryptoheros), Cr. chetumalensis is the sister group of the clade Cr. spilurus + Cr. cutteri. Within Amatitlania the pattern is: (Am. coatepeque (Am. nigrofasciata (Am. siquia + Am. kanna))). Key words: phylogeny, cichlids, Middle America Resumen Se presenta una filogenia para 28 especies de cíclidos que han aparecido dentro o cerca del mismo clado que Archocentrus centrarchus (especie tipo del género) en hipótesis filogenéticas previas, con base en 98 caracteres morfológicos (osteología, patrones de convolución intestinal, coloración, escamación, merística y otros), además de un carácter citogenético. Se demuestra monofilia para Archocentrus sensu stricto, Cryptoheros, Hypsophrys, Amatitlania y Rocio; las interrelaciones de estos géneros no quedan resueltas. Se apoya también la monofilia de los tres subgéneros de Cryptoheros; Cr. panamensis es la especie hermana de las demás en ese género. Dentro de Cryptoheros (Cryptoheros), Cr. chetumalensis es hermana del clado Cr. spilurus + Cr. cutteri. Dentro de Amatitlania, el patrón es: (Am. coatepeque (Am. nigrofasciata (Am. siquia + Am. kanna))). Accepted by L. Page: 22 Jun. 2007; published: 19 Oct. 2007 1.

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