The Collaborative International Dictionary
Ichthyoidal
Ichthyoid \Ich"thy*oid\, Ichthyoidal \Ich`thy*oid"al\, a. [Gr. ?: 'ichqy`s, -y`os, a fish + e'i^dos form.] (Zo["o]l.) Somewhat like a fish; having some of the characteristics of fishes; -- said of some amphibians.
Wiktionary
ichthyoidal
a. Like a fish; ichthyoid.