The study of tropical specimens of Sternaspidae (Annelida) in five museum collections allowed the recognition of six undescribed species. The species newly described are
Caulleryaspis villamari sp. nov. from Peru,
Petersenaspis deani sp. nov. from Pacific Costa Rica,
P. harrisae sp. nov. from South Africa,
Sternaspis lindae sp. nov. from the Gulf of Panama,
S. londognoi sp. nov. from the Southern Caribbean Sea, and
S. sherlockae sp. nov. from the Red Sea. Updated keys to identify sternaspid genera, and to species in each genus are included.