New Species of Jenynsia (Teleostei: Cyprinodontiformes) from Southern Brazil and Its Phylogenetic Relationships
2001; American Society of Ichthyologists and Herpetologists; Volume: 2001; Issue: 3 Linguagem: Inglês
10.1643/0045-8511(2001)001[0726
ISSN1938-5110
AutoresMichael J. Ghedotti, Amy Downing Meisner, Paulo H. F. Lucinda,
Tópico(s)Ichthyology and Marine Biology
ResumoA new species of Jenynsia from southern Brazil is described. Jenynsia weitzmani n. sp. from the rio Pinheiros drainage in Santa Catarina state is diagnosed by a single dark midlateral stripe, absence of associated dark dorsolateral or ventrolateral stripes or blotches in adults, a terminal to slightly oblique mouth, and absence of the first mandibular-canal pore (pore W). A phylogenetic analysis of primarily osteological data supported the new species as sister to a group composed of J. eirmostigma and J. eigenmanni within the subgenus Plesiojenynsia. A key to Jenynsia species is provided.
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