Blennioid fish and Combtooth blenny

Blennioid fish noun - Elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins.

Combtooth blenny and blennioid fish are semantically related. In some cases you can replace phrase "Combtooth blenny" with "Blennioid fish", this phrases are similar.

Combtooth blenny noun - Small usually scaleless fishes with comb-like teeth living about rocky shores; are territorial and live in holes between rocks.

Blennioid fish and combtooth blenny are semantically related. You can use "Blennioid fish" instead a noun phrase "Combtooth blenny".