How did Hapalopus sp. Colombia 'groot' and 'klein' forms come to be?

Smotzer

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Im not sure about the 'groot' but klein in German means small, you sometimes see them listed as 'small' and or 'klein'.
 
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xXTristinaXx

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Ik, but why is there two different forms? With poodles you have mini and large form. Breeding multiple breeds, I don't think it is that though GG as hybridization is highly frowned apon in the T hobby

I'm guessing it is just through artificial, selection unless the two forms are prevalent in the wild then maybe natural selection
 

Smotzer

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Ik, but why is there two different forms? With poodles you have mini and large form. Breeding multiple breeds, I don't think it is that though GG as hybridization is highly frowned apon in the T hobby
Sorry I did not mean to say form. I do not know the history of these two species being discovered just the names, but they are to be treated as separate species as far as I know and as it stands they are undescribed species either way.
 

emartinm28

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Since they are undescribed we don’t really know any specifics about what distinguishes them or if they’re actually separate species or two localities of the same. Groot and klein mean large and small in Dutch (though yes klein also means small in German). Buying one here in the states odds are it’s sp. Colombia ‘groot’
 

Liquifin

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Hapalopus sp. "large" and "small" are not described species so there isn't much too be sure of in terms of if they are or aren't the same species. Despite people using the size reference to tell them apart, there is not much to go on. In terms of features, the small does have a uniquely different yet similar carapace to the large form. But to be honest, there is no certainty in-between two species to say whether they are or aren't the same species. So at the moment, the hobby treats them both as distinct separate species just to be safe.

Ik, but why is there two different forms? With poodles you have mini and large form. Breeding multiple breeds, I don't think it is that though GG as hybridization is highly frowned apon in the T hobby

I'm guessing it is just through artificial, selection unless the two forms are prevalent in the wild then maybe natural selection
The dog/cat reference is one that I find people referring to which is quite out of the park. Using mammals as an explanation with comparisons to invertebrates in most cases is very out of the park. Not good to use them as references in my opinion.

yeah, I have only seen large form in the states, that is the one I have
The Hapalopus sp. "Klein" or "small" does exists in the states, but not much people is breeding them which is why they don't come up often.
 

Arachnid Addicted

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Just a little piece of observation, I think op meant "gross", instead of groot.

If I remember correctly, the german name of these species were H. sp. "Groß" or H. sp. "Klein".

As stated before, klein means, small. As for groß, the letter "ß" is the same as "ss", which means you read it as "gross", and this word means big, in german.

So, I don't believe there's a third undescribed Hapalopus named groot, just the usual ones, lol.
 

xXTristinaXx

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I usually say gross too actually, I just saw Tarantula Collective say groot so I said that instead.
 

viper69

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Ik, but why is there two different forms? With poodles you have mini and large form. Breeding multiple breeds, I don't think it is that though GG as hybridization is highly frowned apon in the T hobby

I'm guessing it is just through artificial, selection unless the two forms are prevalent in the wild then maybe natural selection
There 3 main members of this genus in the hobby. The smallest "Lemon Patch", is fully described w/species- I'll let you do the homework for learning that info yourself. @Liquifin The "small" and "large" are different both in size, and the pattern of orange spots on their abdomens. SO if you know what to look for you can identify them. I've raised the small and the large.

They are not hybrids.

Joe Rossi has great images that he let a senior breeder years ago post of the small, and large. If I recall underneath their color/patterns are different as well.
 
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c.h.esteban

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Hapalopus sp. "Colombia" (Groß/Large) is now Hapalopus formosus.
Some people say so.
But the bulb of the sp. GROSS/LARGE differs from the drawings from H. formosus, especially from that at Gerschman & Schiapelli, 1973b (fig. 79-80).
 
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