Sinum [SEP] parent taxon
Sinum
Sinum is a genus of predatory sea snails, marine gastropod mollusks in the family Naticidae, the moon snails. Most naticids have shells that are globular, but the shell of species in the genus "Sinum" is flattened to some extent, some being so flattened that they are ear-shaped.
Distribution.
This marine species is cosmopolitan.
Species.
Species within the genus "Sinum" include:
- "Sinum bifasciatum" (Récluz, 1851)
- "Sinum concavum" (
Taxon in disguise
In bacteriology, a taxon in disguise is a species, genus or higher unit of biological classification whose evolutionary history reveals has evolved from another unit of similar or lower rank, making the parent unit paraphyletic. This happens when rapid evolution makes a new species appear radically different from the ancestral group, so that it is not (initially) recognised as belonging to the parent phylogenetic group, leaving the latter an evolutionary grade.
While the term is from bacteriology, parallel examples are found throughout the tree of