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Pelobates fuscus larvae

This is a discussion on Pelobates fuscus larvae within the Anura: Photo Gallery forums, part of the Anura: Frogs & Toads category; I`ve always been fascinated by these funny super tadpoles...

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Old 16th June 2005   #1 (permalink)
juraj
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I`ve always been fascinated by these funny super tadpoles Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.



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Old 16th June 2005   #2 (permalink)
william
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wow huge tadpoles! they almost look like a corydoras at a first glance!



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Old 20th June 2005   #3 (permalink)
killian
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Did you breed these yourself? what kind of set-up did you use to achieve breeding?



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Old 21st June 2005   #4 (permalink)
juraj
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I didn`t. It`s a wild specimen.



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Old 27th June 2005   #5 (permalink)
jeff
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Hey Juraj,

Isn't this the species who's tadpoles become giants, yet when they morph they are pretty small in comparison?



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Old 28th June 2005   #6 (permalink)
william
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no thats the paradoxical frog from south america (pseudidae) the famous one is pseudis paradoxa



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Old 28th June 2005   #7 (permalink)
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I have a pair of Pseudis at home, and they ceratinly look like pseudis tadpoles...

did you take the pics or where are they from? I have also seen them in the wild in Trinidad

cheers
colin



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Old 29th June 2005   #8 (permalink)
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Colin- the original picture is a P. fuscus tadpole- these are the largest native tadpoles in Europe.

How big were the Pseudis tadpoles you saw in the wild? I understand they can get up to 25cm long.

From what I've read, the only other species that have tadpoles anywhere near this big are American Bullfrogs at about 15cm.

I also understand that Pseudis metamorphosis isn't as 'paradoxical' as has been suggested in the past- they don't shrink more than any other frog species, they just do most of their growing in the tadpole stage.



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Old 29th June 2005   #9 (permalink)
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Hi Caleb,

The largest Pseudis tadpoles i have seen were from Pseudis paradoxus caibensis in Trinidad. They were probably about 20 - 22cm long as tadpoles.

During metamorphosis there really isn't any shrinking at all.

I have kept frogs after metamorphosis for over two years and can say that they really didn't grow much if any bigger than they were at metamorphosis. Fatter maybe?

On another occasion, A wild caught tadpole turned into a frog in captivity and even though it still had a bit of its tail, it was trying to amplex a female!

The two Pseudis I have now were from BHS in '03 and are from Paraguay. The adults seem to be about 1/3 to 1/2 the size of the Pseudis from Trinidad. I had asumed that their tadpoles didn't grow as big as the Trini ones... maybe they did shrink???

I am hoping to get more of the Trini beasts in the future...

Largest catesbiana tadpoles I have had were lucky if they were 10cm but the resulting froglets are quite small compared with Pseudis metamorphs

cheers
colin



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Old 30th June 2005   #10 (permalink)
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Colin,

interesting to hear about your Pseudis. Have you read this:

Emerson, SB (1988): The giant tadpole of Pseudis paradoxa. Biol. J. Linn. Soc. 34: 93-104.

(PM me if you want a copy).



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Old 30th June 2005   #11 (permalink)
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pics for you, some pics of a trini swamp where pseudis live and my paraguayan specimens
Click the image to open in full size.


Click the image to open in full size.


Click the image to open in full size.



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Old 1st July 2005   #12 (permalink)
william
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nice animals, i don't suppose you have any tad pics?



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Old 1st July 2005   #13 (permalink)
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no, not yet anyway ;)



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Old 1st July 2005   #14 (permalink)
william
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have they shown any signs of breeding?



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Old 1st July 2005   #15 (permalink)
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no, but they are currently being treated to a dry season. They have only 1 - 2" of water with hot temperatures and not a huge amount of food.

In a few weeks, I'll hit a rain schedule, cool the water, increase the depth and cross my fingers



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Old 2nd July 2005   #16 (permalink)
william
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lol, i hope it all goes well for you!



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Old 27th April 2006   #17 (permalink)
ely
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would they grow into frogs i seen them at petland before

(Message approved by ed)



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