Thanks Tim! for carrying my photo on Outdoor Japan Traveler as the front cover. This photo from The 50 Best Dives in Japan: The Ultimate Guide to the Essential Sites, by Tim Rock and Noriyuki Otani
https://www.amazon.com/gp/product/B07PRJT8PG
Tag: blenny
Macro : Parablennius yatabei イソギンポ
Jordan & Snyder, 1900
It is not rare but cute

The Yatabe blenny is a species of combtooth blenny. Two sticks protruding from the head are marks. It is not difficult to see them at the rocky shore in Japan. However, this Yatabe blenny lives at the sandy bottom area. So that his home is the hole of a steel pipe. This pipe is a part of a scaffold that was sunken to make it a fishing reef. This blenny is about 8-10cm. It seems an adult fish. Osezaki, Izu peninsula, Japan. -12m.