Diamond Blenny Juvie?

Images: 
IMG_1649a.jpg
IMG_1676a.jpg
IMG_1677.jpg

Hi,

Snorkeling north shore St. John and snapped these pics. Looks almost like a diamond blenny, but the head isn't yellow and this fish has another dark spot with neon blue center on rear dorsal fin, which makes me wonder if maybe it's a juvenile. So many fish have these spots when juveniles, then loose them later. The red/orange anal fin is curious also. Taken in about 2 feet of water over a Manatee seagrass bed with sandy, rubble strewn bottom.

 

Thanks,

Just a snorkeler,

Barb-St. John

Malacoctenus gilli

You were close! It's a Dusky Blenny, Malacoctenus gilli. I have seen the orange anal fin on them before, but beware: the similar Malacoctenus erdmani (no common name) can also have an orange anal fin and rear spot. The difference is M. erdmani is smaller with a square spot and M. gilli has a rounded spot.

I don't have any pictures of the Dusky Blenny but here's two of M. erdmani. Keep your eyes open for these - they should be in your area and in the same habitat.

http://www.flickr.com/photos/13979352@N02/4578483117/in/set-72157623208663976/

http://www.flickr.com/photos/13979352@N02/4579110880/in/set-72157623208663976/

Louis

  I guess I see the

 

I guess I see the resemblance now, the Reef Set picture doesn't clearly show the spot of the foredorsal fin and the mine looks like it's quite a bit smaller in size and much more colorful.  I have a couple other pictures of what I've identified as a Dusky Blenny, but I can't figure out how to post one into a reply message. Any hints on that?

 

Barb

 

I've never been able to add

I've never been able to add photos in a reply, but I don't think anyone would mind if you posted them in a new topic.

Yes, the photo in Reef Fish shows a large, dull adult - Some of them are much brighter.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Design by Joanne Kidd, development by Ben Weintraub