Fantastic Four #144 (Pt 2) Seek and Ye Shall Find...Triton!

In this panel from Fantastic Four #144 (1974), the green, scaly guy lying on the ground in a puddle of water is the Seeker, one of Dr. Doom's androids.  

Fantastic Four #144  Rich Buckler

Hmmm, doesn't the Seeker remind you of everyone's favorite aquatic Inhuman? Well, as you can see the panel above is reminiscent of this panel from 1967's FF #63 featuring none other than Triton.  

Fantastic Four #63  Jack Kirby

Connections...or as a professor of mine put it "the wheels within wheels": earlier on there was a different Seeker who appeared back in FF #46 (1966) during the first Inhumans arc. That Seeker was one of the "evil" Inhumans who worked with Maximus and was in hot pursuit of one of Black Bolt's "good" Inhumans, namely--you guessed it--Triton. :)