Two new trans-Andean species of Imparfinis Eigenmann & Norris, 1900 (Siluriformes: Heptapteridae) from Colombia
نویسندگان
چکیده
منابع مشابه
Trans-Andean Ancistrus (Siluriformes: Loricariidae).
We review the trans-Andean species of Ancistrus from Panama, Colombia and Venezuela. Based on analyses of meristic, morphometric and pigmentation pattern data of preserved specimens, eight of sixteen species reported from this region are considered valid and two new species are described. Here we review Ancistrus chagresi Eigenmann & Eigenmann 1889 from both slopes of central Panama; A. centrol...
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The present work studied helminth parasites of "pacu-manteiga", Myleus tiete (Osteichthyes: Characidae) from Volta Grande Reservoir, MG, Brazil. Fishes with 142.6 +/- 24.7 g weight and 17.3 +/- 1.0 cm total length were collected. Five out six analysed fish (prevalence 83.3%) were parasitized in the intestine with an average of 535.6 +/- 334.6 oxyurid nematodes per fish. The helminth was identif...
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Two new species of Alcea L. (Malvaceae)in Iran, namely, A. iranshahrii from Fars Province and A. mazandaranica from Mazandaran Province are described. Their descriptions and taxonomic relationships are also given. In addition, seed coat microsculpturing is examined using Environmental Scanning Electron Microscope (ESEM). The seed coat patterns observed are fairly uniformed among the genus. It w...
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Two new species of Hisonotus are described from the rio Paraná-Paraguay basin in Brazil. The most remarkable features of the new species are the odontodes forming longitudinally aligned rows (one odontode after the other, but not necessarily forming parallel series) on the head and trunk (vs. odontodes not forming longitudinally aligned rows), a pair of rostral plates at the tip of the snout (v...
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Two new species of the genus Terebra are described conchologically to the Atlantic coast of Colombia. The species are Terebra colombiensis and T. sterigmoides. They are differentiable mainly because of their sculpture, protoconch and spire angle. They are part of a group of Western Atlantic terebrids informally called “T. doellojuradoi complex” and differ from the Brazilian species in having we...
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ژورنال
عنوان ژورنال: Neotropical Ichthyology
سال: 2011
ISSN: 1679-6225
DOI: 10.1590/s1679-62252011000400009