1) Coelacanth 2) Lobefin 
• (n.) One of the Crossopterygii. • (a.) Of or pertaining to the Crossopterygii.
any member of the subclass Crossopterygii, a group of primitive, lobe-finned, bony fishes believed to have given rise to the amphibians and all other ... [3 related articles]
Cros·sop`ter·yg'i·an adjective (Zoology) Of or pertaining to the Crossopterygii. -- noun One of the Crossopterygii. 
[n] - any fish of the order Crossopterygii
lobefin noun any fish of the order Crossopterygii; most known only in fossil form
any fish of the group Crossopterygii, extinct except for the coelacanth, regarded as being ancestral to amphibians and other land vertebrates.