Caribbean ?Blenny

Can anyone help ID this rascal?

In the rubble on the Trail Reef area of Charlie's Shoal, Sint Maarten, in about 16m/50'. Only the head was sticking out. I figure some kind of Blenny but no luck finding which so far. 

The head is barely 1/2" long - maybe 1cm.

Thanks!

My guess would be the Yellowface Pikeblenny (Chaenopsis limbaughi). Little bit hard to tell from just the head. If it's not the Yellowface, it's most likely some kind of pikeblenny.

Many thanks, Brian. I did think some kind of pikeblenny but couldn't find anything similar in the usual books.

Could be an Arrow Blenny? They hide in holes and do not retreat like a pikeblenny does.

53 minutes ago, KeithG said:

Could be an Arrow Blenny? They hide in holes and do not retreat like a pikeblenny does.

Thanks. Yeah, could be. I guess there's just not enough to really be able to ID it.

Below are a couple much more terrible pics of similar fish in Cozumel. From the pictures in this app

https://biogeodb.stri.si.edu/caribbean/en/thefishes/species/4001

it looks like the yellowface pikeblenny can be pretty variable in color.

Oh cool! Many thanks for that.