I just noticed this today and thought it was pretty cool. Here are some pics of him. Sorry if the pics are blurry cuz he was moving around the whole time.
if there is any light that comes on the senegal's eye it will be reflected ... this effect is better known from owls and other creatures of the night.
This effect is almost characteristic for the most animals which are living night-orientated. On Polypterus senegalus this effect isn't as heavily as on other bichirs - the most spotlight-like eyes do have delhezi ... it's nearly impossible to photograph them without this effect and - if there's a little bit of light in the room you're keeping them you will see them "glow"!
The cause is light reflecting outwards. Your ray of light will bounce in, but some will reflect off the back of the eye. When this is coming out towards you, it bounces through a small capillary network, giving it a red tint.