. . . _:b76220679 . "Perisphincter extrarius" . "Viktorov & Atanasov, 1974" . "Perisphincter extrarius" . . "998378" . _:b76220679 "GBIF id" . _:b76220679 . . "Perisphincter extrarius Viktorov & Atanasov, 1974" . _:b76220679 "1305185" . "1305185" . . . . _:b76220679 .