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Autor Tema: Orestias gloriae  (Leído 1620 veces)

Druchii

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Orestias gloriae
« en: Enero 14, 2012, 08:47:25 am »

Hola a todos,

Comentaros que se ha descrito una nueva especie: Orestias gloriae (fijaos la altitud a la que vive  :o :o) de este género tan poco conocido y aún menos difundido.

"Orestias gloriae, new species, is described from the isolated springs that drain into the Carcote saltpan in the southern high Andes, in the Chilean Altiplano, at an altitude of 3706 m a. s. l. (21°16'58.6" S 68°19'28.4" W). This is the only fish species found in these saltpan springs characterized by scarce vegetation, aquatic insects, crustaceans, and mollusks. The new species is separated from other species of Orestias by several unique characters such as a truncated cephalic lyre-like pattern of neuromasts represented only by the rostral series followed by few and
large neuromasts irregularly placed; discontinuous series of infraorbital and preopercle-mandibular neuromasts; thick and irregularly-shaped ornamented cycloid scales covering the skull roof; scales covering the posterior part of the skull roof ankylosed into a plate. Additional characters are the presence of a protractile mouth and a characteristic karyotype. Although differences in sizes is a common sexually dimorphic feature found in Orestias, differences in the dentition on the fifth ceratobranchial distinsguish males and females of O. gloriae."

Saludos,

Juan Pablo
En línea

Responsable BISEK & Bibliotecario
Juan Pablo Campo Fort - SEK2005/03