Okutani T. (1990). Two new species of Provanna (Gastropoda : Cerithiacea) from "Snail Pit" in the hydrothermal vent site at the Mariana Back-Arc Basin. Venus. 49(1): 19-24.
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Okutani T.
1990
Two new species of <i>Provanna</i> (Gastropoda : Cerithiacea) from "Snail Pit" in the hydrothermal vent site at the Mariana Back-Arc Basin