in the south, the devoicing process and deaffrication of gave rise to new fricatives that were indistinguishable from the existing ones. the process of increasing articulatory distance still applied, however, and retracted to in the south just as it did in the north. in a number of "ceceo" areas (particularly the southernmost provinces like cádiz) developed into a non-sibilant apico-dental , perceptually similar to the interdental used by standard peninsular speakers for orthographic /. in "seseo" areas (particularly in the westernmost provinces like seville and huelva), the resulting phoneme developed a predorsal alveolar realization (like english ), perceptually similar to the apicoalveolar used by standard peninsular speakers for orthographic . this "seseo" variety was the pronunciation that most impacted latin america, as many emigrants to the americas were from andalusian and canarian ports. in addition, several generations of spanish speakers had lived and grown in the americas before appeared in castilian.