. "7747427" . "76369" . . "Nitzschia obtusa" . "Nitzschia obtusa" . "R044d116d5300bbc2" . _:b76637344 "WoRMS id" . "149607" . _:b75405122 "AlgaeBase id" . "Nitzschia obtusa W. Smith, 1853" . . _:b76637344 . _:b75730911 "7747427" . . . . _:b75730911 . _:b75405122 "R044d116d5300bbc2" . _:b76637344 . _:b75730911 "GBIF id" . _:b75405122 . . . _:b75405122 . "W. Smith, 1853" . . . . _:b75730911 . "Nitzschia obtusa" . . _:b76637344 "149607" . _:b75730911 . _:b75405122 . _:b76637344 .