ðiːz wˈɛlks hæv bɪkˌʌm ɪstˈæblɪʃt ɪnðɪ ˌædɹɪˈæɾɪk ænd iːdʒˈiən sˈiːz, ænd hæv ˈɔːlsoʊ bˌɪn fˈaʊnd ɪnðə tɪrhˈiːniən sˈiː, ɔnðə nˈɔːɹðɚn ɐtlˈæntɪk kˈoʊst ʌv fɹˈæns, ænd ðə sˈaʊθiːst kˈoʊst ʌv sˈaʊθ ɐmˈɛɹɪkə, ɪn jˈʊɹɹuːɡwˌaɪ ænd ðə ɹˈiːoʊ də lˌæ plˈɑːɾə ˈɛstjuːˌɛɹi ɪŋklˈuːdɪŋ sˈæmboːɹˌɑːmbən bˈeɪ, ænd ɪn ˌɑːɹdʒəntˈiːnə.
These whelks have become established in the Adriatic and Aegean seas, and have also been found in the Tyrrhenian sea, on the Northern Atlantic coast of France, and the southeast coast of South America, in Uruguay and the Rio de La Plata estuary (including Samborombon Bay), and in Argentina.