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Sexing Aegla platensis

Posted: Sun Oct 29, 2006 6:52 pm
by Nion
I have 3 aegla that I need help sexing.

First one:
Image

Second one:
Image
Image

Third one:
Image

Thanks, Michael

Posted: Sun Oct 29, 2006 11:34 pm
by Mustafa
1. male, 2. female, 3. male.

Posted: Mon Oct 30, 2006 5:42 am
by Nion
That's what I was thinking and hoping too.

Thanks for verifying. :D

Posted: Mon Oct 30, 2006 8:40 am
by Mustafa
You're welcome. :) Now make sure you keep us updated on any possible breeding successes (or even failures).

Posted: Mon Oct 30, 2006 9:32 am
by badflash
So what did you see that told you?

Posted: Mon Oct 30, 2006 9:45 am
by Nion
Someone can correct me if I'm wrong.

Image

This is the only difference that I could see that made me think it was a female.

I'm sure there is something on the male that I am missing to determine the sex.

Michael

Posted: Mon Oct 30, 2006 2:21 pm
by Mustafa
Nion wrote:
I'm sure there is something on the male that I am missing to determine the sex.
Michael
The male gential openings are very hard to see, so most people will miss them if they don't know what to look for. Even so, you need really good eyes to see it on a photo. Since I don't have pictures of this species, I took the liberty of using your picture to point out where the male genital openings are. They are on the fifth pair of legs (counting from the claws that count as the first pair), which are stunted in all Aegla:

Image

Also, that stunted pair of legs seems to be larger in the males than in the female. Hope this helps.

Posted: Mon Oct 30, 2006 2:49 pm
by Nion
Was I correct on the female?

Michael

Posted: Mon Oct 30, 2006 3:07 pm
by Mustafa
Nion wrote:Was I correct on the female?

Michael
Yes. :) I thought it was implied by the fact that I did not correct you. :-D Now get these guys breeding....make sure the temperature is in the low 70s as they allegedly don't like higher temperatures at all.

Posted: Mon Oct 30, 2006 5:53 pm
by Newjohn
Nion

How long have you had them ?
This would be a great Species for the Hobby.

What are they classified as Crab, Crayfish, Shrimp ?

Thank You for Showing us that someone in the States Has these.
John

Posted: Mon Oct 30, 2006 6:05 pm
by Nion
Seems like I've had them forever, but I just checked and I received them in mid-August.

Posted: Mon Oct 30, 2006 6:11 pm
by badflash
I don't think they are classified with any of them. I found this, but got lost part way through. maybe someone can interpret? They look crab like, but I don't think they are crabs at all.
http://www.redorbit.com/news/science/10 ... index.html

I've also been reading several articles that Anomura may not hold up much longer due to DNA testing and other analysis such as the structure of the eyes, sex organs and larva. What I read tonight seems to indicate that anything that looked like a crab was dumped under Anomura and there may be some new classifications soon.

Re: Sexing Aegla platensis

Posted: Sun Dec 11, 2011 4:15 pm
by willymamouth
Where did u get them from?