Blob sculpin (Psychrolutes phrictus)

… grow to about 60 cm (2 feet) long and are shaped like large, flabby tadpoles. They eat crabs, sea pens, and other small animals that live on the seafloor. MBARI researchers have seen groups of blob sculpin brooding nests of eggs on undersea ridges off the coast of Northern California.

Read more about that research here at MBARI.