Skip to main content Skip to main navigation menu Skip to site footer
Type: Articles
Published: 2004-10-29
Page range: 1–12
Abstract views: 68
PDF downloaded: 4

Moema apurinan sp. n. and Aphyolebias boticarioi sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): two new annual killifishes from the Rio Purus basin, Brazilian Amazon

Laboratório de Ictiologia Geral e Aplicada, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68049, CEP 21944-970, Rio de Janeiro, Brasil
Pisces Annual Fish Cyprinodontiformes Rivulidae Moema Aphyolebias Amazon systematics taxonomy new species

Abstract

Two new annual fishes are described from the upper Rio Purus drainage, Amazonian basin, northern Brazil. Moema apurinan, new species, is similar to M. staecki, these two species distinguished from other congeners in having contact organs on scales of the flank in males, an acuminate caudal fin, fewer pectoral-fin rays, fewer vertebrae, and a narrower rostral cartilage. Moema apurinan differs from M. staecki in having a longer pectoral fin and a wider basihyal. Moema apurinan is distinguished from all other congeners by possessing fewer caudal-fin rays. Aphyolebias boticarioi, new species, differs from all other congeners by having a deeper body. It is similar to A. rubrocaudatus, A. obliquus, A. claudiae and A. schleseri in having a ventral marginal black stripe on the caudal fin in males. Aphyolebias boticarioi differs from these species by a combination of features including number of anal-fin rays, pectoral-fin rays, vertebrae and gill-rakers, and color patterns.

References

  1. Costa, W.J.E.M. (1989) Descrição e relações filogenéticas de dois gêneros novos e três espécies novas de peixes anuais neotropicais (Cyprinodontiformes, Rivulidae). Revista Brasileira de Biologia, 49, 221–230.

    Costa, W.J.E.M. (1992) Sistemática e distribuição do gênero Moema (Cyprinodontiformes; Rivulidae), com a descrição de uma nova espécie. Revista Brasileira de Biologia, 52, 619–625.

    Costa, W.J.E.M. (1995) Pearl killifishes - the Cynolebiatinae: systematics and biogeography of the neotropical annual fish subfamily. TFH, Neptune City, 128 pp.

    Costa, W.J.E.M. (1998) Phylogeny and classification of Rivulidae revisited: evolution of annualism and miniaturization in rivulid fishes (Cyprinodontiformes: Aplocheiloidei). Journal of Comparative Biology, 3, 33–92.

    Costa, W.J.E.M. (2001) The neotropical annual fish genus Cynolebias (Cyprinodontiformes: Rivulidae): phylogenetic relationships, taxonomic revision and biogeography. Ichthyological Exploration of Freshwaters, 12, 333–383.

    Costa, W.J.E.M. (2003a) Two new annual fishes of the genus Moema Costa, 1989, from the Peruvian Amazon (Teleostei, Cyprinodontiformes, Rivulidae). Boletim do Museu Nacional, Zoologia, 513, 1–10.

    Costa, W.J.E.M. (2003b) Moema nudifrontata sp. nov. (Cyprinodontiformes: Rivulidae): a new annual fish from the Brazilian Amazon. Comunicações do Museu de Ciências e Tecnologia da PUCRS, Série Zoologia, 16, 167–174.

    Costa, W.J.E.M. (2003c) three new annual fishes of the genus Aphyolebias Costa, 1998 (Cyprinodontiformes: Rivulidae) from Bolivian and Peruvian Amazon. Comunicações do Museu de Ciências e Tecnologia da PUCRS, Série Zoologia, 16, 155–166.

    Costa, W.J.E.M. (2003d) Moema heterostigma, a new annual fish (Cyprinodontiformes: Rivulidae) from the Brazilian Pantanal, Rio Paraguay basin. Ichthyological Exploration of Freshwaters, 14, 289–294.

    Hoedeman, J.J. (1958) Rivulid fishes of the Antilles. Studies on the Fauna of Curaçao and other Caribbean Islands, 32, 112–127.

    Huber, J.H. (2003) A new species of annual killifish from southeastern Peru, with a uniquely barred color pattern: Moema quiii n. sp. Freshwater and Marine Aquarium, 26(12), 10-12, 14, 16, 18-19.

    Taylor, W.R. & Van Dyke, G.C. (1985) Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study. Cybium, 9, 107–109.