Squatina punctata Marini, 1936 Angular angelshark or Squantina guggenheim is a species of shark in the Squantinidae family.

They are found in Brazil, Uruguay, and Argentina living in marine, brackish, and demersal environments at depths of 4-360 m. Their typical food sources consist of bony fish, crustaceans, and mollusks.

[1] Squantina guggenheim is shaped like a ray and in males, a spiny surface is located on its pectoral fins.

This spiny structure is thought to help males hold females while mating.

In addition, it may be possible females leave their young earlier on due to the stresses induced from fishing.