What specialized feature do the eyes of the Pacific sleeper shark possess to aid in gathering light?

Answer

Tapetum lucidum

The eyes of these sharks often feature a reflective layer at the back known as the tapetum lucidum, which helps gather the minimal light available in the deep ocean.

What specialized feature do the eyes of the Pacific sleeper shark possess to aid in gathering light?
marine lifeidentificationfishsharksleeper shark