- ^ Neuter, for instance, at Varro, De lingua latina 5.57, where a masculine form might be expected for the partner of Terra. Neuter also at Hyginus, Fabula pr. 2 (17) in a series of divine personifications with Terra and Mare (the Sea). The masculine and neuter forms of the name Caelus and Caelum differ only in the vocative and nominative cases; when a second-declension noun appears in the genitive, dative, or ablative case, there is no way to distinguish whether the neuter or masculine is meant. When the deity is conceived of as plural, "the Heavens," the masculine Caeli is used, and not the neuter Caela, which would create an ambiguity with first-declension nouns of feminine gender. Divine personifications in Latin are mostly feminine.