CostentalinaCostentalina is a genus of medium-sized tusk shells, marine scaphopod molluscs in the family Entalinidae.SpeciesCostentalina caymanica Chistikov, 1982Costentalina elegans Chistikov, 1982Costentalina indica Chistikov, 1982Costentalina leptoconcha Chistikov, 1982Costentalina pacifica Chistikov, 1982Costentalina tuscarorae Chistikov, 1982Costentalina vemae Scarabino, 1986