This is a Boletus. it is not possible to ID this without examining the spores under magnification. Many Boletes flash blue on their flesh, in this case (flashing blue) it is to be avoided for consumption. There are numerous species of Boletus in the US.
It has an oval body with eight calcareous plates on the dorsal part. They are fixed to the substrate and move with a suction cup foot. It is dark brown in color. It feeds on algae and small organisms that it takes off with the radula. If it detaches from the rock, it curls into a ball.
Small fish, about 7 cm in length. In tidal pools, under stones or algae, which are grasped by means of the suction cup, up to 15 m. It remains hidden during the day, and comes out at night. It feeds on shrimp and small worms and crabs. You can go without water for a while, but there needs to be moisture. The female lays her eggs on a stone in spring and they are watched over by both her and the male.
Locally known as 'Vladika', the ornate wrasse is a very colourful small fish of shallower waters near shores. Both sexes are very colourful, and when they swim, you have the impression that all colours of the spectre are present. The intensity of colours depends on age, sex and mating season. Both sexes have brown-orange head with a distinctive bright blue pattern. Beside this, there is a distinctive sexual dimorphism - female (pics 1 and 2) is smaller, 12-15 cm in length, and it sports five blue vertical lines on both sides, and one black spot in the middle of the back. Males (pics 3-6) are bigger, reaching about 20cm in length, and generally brighter coloured - with the body appearing orange or green.