Primer registro para Chile de las diatomeas marinas Nitzschia amabilis, Nitzschia elegantula y Chaetoceros muelleri var. subsalsum

the marine small diatoms nitzschia amabilis, nitzschia elegantula and chaetoceros muelleri var. subsalsum are reported for the first time from chilean coastal waters. a short diagnosis is included for each taxon, and photomicrographs provide information about the main morphological characteristics.