Epithets of species or subspecies can be formed from latinized personal names in the adjective form or in the genitive noun form [Rule 63]. Epithets of species or subspecies can be formed from geographic locations using the endings -ensis (feminine or masculine) or -ense (neuter). However, localities can also have classical Greek, classical Latin or medieval Latin adjectives such as africanus. Epithets can also be nouns [Rule 12c, Rule 13b]. The species and subspecies names found in LPSN whose epithets are unambiguously derived from an entity, but neither derived in the genitive noun form from a personal name nor derived from a location using -ensis or -ense, are listed below, arranged by the name of the entity to which they are referring. See also the LPSN introductory page on forming names.
In the case of a ☞ new combination these epithets must be adapted to the gender of the genus name: -anus (masculine), -ana (feminine) or -anum (neuter). This is a special case of Group A adjectives ending in -us (masculine), -a (feminine) and -um (neuter).