Новый броняковый сом в Бразилии

Новый вид броняковых сомов рода лептодоров (Leptodoras), семейство Doradidae, обнаруженный в реке Rio Fresco, бассейн Xingu, в Бразилии, получил название Leptodoras marki.

The new species shares three characters with its congeners, the modified oral hood with distinct upper labial extensions, the first gill arch with enlarged accessory lamellae extending well onto medial face of gill filaments, and the pelvic fin inserted in anterior half of body. The new species is distinguished from congeners by having a large dark submarginal blotch on distal half of dorsal-fin spine and anteriormost dorsal-fin branched rays, lower labial extension of modified oral hood extending more posteriorly than upper labial extension, relatively few midlateral scutes, gas bladder moderately sized (not reduced), paired bony capsules on anteriormost vertebrae reduced to paired cup-like laminar ossifications separated by a triangular septum, pair of small, swelling-like diverticula on each side of the anterior chamber of gas bladder, a well-developed anterior nuchal plate, and nuchal foramina present.

Birindelli, J.L.O. и Sousa, L.M.
Leptodoras marki Birindelli & Sousa, 2010 в Copeia, 2010 (2): 292-299.