Fig. 4.
Description of three closely related clades of marine bivalves excluding and including deep-sea species (phylogeny from ref. 33). Panels are organized as in Fig. 2. Despite the doubling of diversity in Propeamussiidae when including deep-sea species, these glass scallops are not forecast to overtake the diversity of their more speciose sister clade Pectinidae—the true scallops.