"Tortoiseshells" is a term commonly used to describe the patterned shells of various species of turtles and tortoises. However, there are several synonyms for this word that can be used to describe these unique shells, such as "speckled shells" or "mottled shells." Other synonyms include "variegated shells," "spotted shells," or "marbled shells." These descriptions all capture the striking and intricate patterns found on tortoiseshells, and can be used interchangeably to add variety to writing and conversation. So whether you prefer to use the term "tortoiseshells" or opt for one of its synonyms, there's no denying the beauty and complexity of the patterns found on these remarkable creatures.