Hi trustemedia!
I'm sorry for the late reply.
According to this book(Indo-Pacific Sicydiine Gobies: biodiversity, life traits and conservation).
And this page is useful.
https://borea.mnhn.fr/sites/default/fil ... ntipes.pdf
◆Lentipes ikeae
Pectoral fins with 16-17 rays
●Lentipes armatus
Pectoral fins with 17-19 rays
I can count 19 rays with pectoral fin in your picture.
I think that Lentipes in your photo is L.armatus.
You can see lot of photos in this website.
http://www17.tok2.com/home2/tarogoby/zu ... yoroi.html
I am not used to English. Therefore,It is likely to sometimes misunderstand it.