Fig. 2.
Maximum likelihood phylogenetic tree inferred from concatenated 16S rRNA, 12S rRNA, and COI gene sequences. C.cerithina appears to belong to a separate clade well separated from the Turridae comprising Lophiotoma, Gemmula, Turris, Turridrupa, and Polystira. Instead it appears to be closely related to Inquisitor species and is provisionally placed in the family Crassispiridae. Branches are labeled with Bayesian posterior probabilities (left) and maximum-likelihood bootstrap values (right).