ABSTRACT
Characidium chancoense new species, is described from the transandean upper Río Cauca drainage in Colombia. It can be distinguished from all congeners by its pigmentation pattern that consists of 7-12 vertical bars, most of which are cuneate-shaped with the vertex ending on or just below the lateral-line scale series, except for the last 1-4, which are dorsoventrally elongate rectangular bars that extend well below the lateral line. Characidium chancoense is sympatric with C. caucanum Eigenmann, C. phoxocephalum Eigenmann, C. cf. zebra Eigenmann and C. cf. boavistae Steindachner. Unlike C. caucanum and C. cf. boavistae, C. chancoense does not appear to be sexually dimorphic.
Subject(s)
Characiformes , Animals , Birds , Colombia , Drainage , HeadABSTRACT
Two new species of Characidium, C. tatama and C. dule, are described from the biogeographic Chocó region in western Colombia. Both new species are supported by both morphological and molecular data. C. tatama from the San Juan River in the Pacific and C. dule from the Atrato River in the Caribbean portion of Colombia are both distributed in the upper and lower portions of these basins. An extensive comparison with other trans- and cis-Andean species of Characidium was made, in addition to species delimitation, using COI sequences by distinct methods (GMYC, ABGD, bPTP).
Subject(s)
Biodiversity , Characiformes/classification , Animal Distribution , Animals , Characiformes/anatomy & histology , Characiformes/genetics , Colombia , Electron Transport Complex IV/genetics , Rivers , Species SpecificityABSTRACT
For the first time, the catalog of type specimens of ICN-MHN is presented with high resolution photographs. The catalog lists 87 species in 161 lots and includes 41 holotypes, 3 neotypes, and 117 lots of paratypes. Some doubts remain about type specimens of some species described by Miles and Dahl that were supposedly deposited at ICN-MHN. The history of the collection is reconstructed and valuable specimens once considered lost or destroyed have been rediscovered. The botanical and zoological collections of the ICN can be consulted online (http://www.biovirtual.unal.edu.co).
Subject(s)
Databases, Factual , Fishes , Museums , Animals , ColombiaABSTRACT
Se presenta una revisión actualizada del metabolismo de la bilirrubina, las causas de la hiperbilirrubenemia, la clasificación implícita de las mismas y el abordaje del paciente con enfermedad hepatobiliar e ictericia según se maneja en nuestro medio en forma óptima de acuerdo a los recursos disponibles. Descriptores: Ictericia, hepatopatía, enfermedad biliar
