A population of large seed finches, probably extirpated, occurred on Trinidad. Studies of specimens by Phelps & Phelps and by Meyer de Schauensee identified this population as the taxon now known as Sporophila maximiliani parkesi, but subsequent literature has often referred to these birds as S. c. crassirostris without fresh evidence or analysis. My review of specimens reaffirms their identity as S. m. parkesi, and refutes the hypothesis that this taxon should be considered a synonym of S. m. maximiliani.