[Taxonomical chracteristics and chemotaxonomical of buf in Shendi]

Abstract EN

Taxonomical investigation of Bufo species in Shendi area illustrated the existence of various Bufo spp., these species showed similar morphological features of B.

xeros, B.

regularis and B.

maculatus.

This study recorded for the first time the existence of Bufo maculatus in Northern Sudan, and stated that the tympanum eye ratio is a significant morpho-functional adaptation in B.

xeros and B.

maculatus, because both species live in sympatry.

Chemotaxonomical investigation of the parotoid gland secretions of Bufo spp., using Thin Layer Chromatography (TLC), revealed various spots of amino acid/peptide/ protein components and alkaloid/steroid components corresponding to the morphological features to each species, these patterns provided evidence that B.

regularis and B.

maculatus are relativity closer than B.

xeros.

The findings of this study strengthened the fact that parotoid gland secretions of amphibians, especially Bufo spp., have a significant role in taxonomical and evolutionary studies.

OBJECTIVE This study investigated the diversity of the indigenous Bufo spp.

in Shendi area, by studying several morphological parameters and by applying TLC to investigate the amino acid/peptide/protein and alkaloid/steroid components in the parotoid glands secretions.