Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† 1. ĭūlis, ĭdis, f., = ἰουλίς, a kind of rockfish, Plin. 32, 9, 31, § 94.
2. Iūlis, idis, f., = Ἰουλίς, a city in the island of Ceos, in which Simonides and Bacchylides were born, now Zea, Plin. 4, 12, 20, § 62; Val. Max. 2, 6, 8.
jūlis (iūlis), ĭdis, f., a kind of rockfish, Plin. 32, 9, 31, § 94.