Final Say on Dark Green Shrimp?

[southerndesert]

Hello Mustafa,

I have been to the species description page as well as the archives and all info points to these being Dark Green Shrimp, and along with adults I have many young in the 3 to 4 mm range and some are red, brown, or green again pointing to DGS. My adults are all various shades of green (photo is sellers)

The seller has been contacted by others saying they are either Green Shrimp or something called Neon Green Shrimp that I have never heard of. All indications point to DGS and I am just trying to be sure since I may have put my foot in my mouth telling him this already.... He just wants to know what he actually has now that I stuck my nose into this

Some of the confusion lies in that some seem to show a line on the back as well..... I will try for some photos of mine if needed.



Thank you for taking the time to help here...

Added later... from my shrimp.

Some of mine with and without stripe.





Most of my adults have no stripe and two appear to have one. I am somewhat confused here (this can be normal for me)



Bill

[Mustafa]

There are several species of green or greenish shrimp from India which may or may not be closely related. The offspring of my dark green shrimp that are now *not* on a black substrate are not extremely dark green like the ones on the shrimp varieties page. They kinda look like the shrimp above, so I would say, with some reservations since I don't have the above shrimp right in front of me, that they are probably the same (and the name "dark green shrimp" should probably be changed to something else, maybe to "extremely-dark-on-black-substrate shrimp" ).

Now...if two species of green shrimp from India are closely related, they may actually look very similar morphologically and may even interbreed. As the exporters just throw all the shrimp in the same container, there is no way of knowing if the green shrimp that we have in our tanks are hybrids of closely related species or not. The stripe/no stripe distinction does not always work, as some of the "dark green shrimp" also have stripes as you already noted. However, some species seem to *always* have a stripe. I actually have a third species of green shrimp that I am trying to build up into a sizable population. It is never imported as a species but comes as individual by-catches once in a blue moon (and always females..and always half-dead). That one seems to always have a stripe. The "original" green shrimp I had (unfortunately died out for good) was always green and the vast majority of the females had a very white stripe down their backs, though some didn't. Kinda the opposite of the dark green shrimp. They also had a more elongated body as you can see on the pictures in the species description.