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Hypoptopoma identification

Posted: 29 Jan 2014, 19:13
by Gertbl
Hi everybody,
As some might know, I have some Hypoptopoma sp. in my main tank.
Last sunday I got two more Hypoptopoma from someone else, and that means that I have three different species at this moment.

So my question is, are these the correct names for the species?
Hypoptopoma inexspectatum? (3 specimens)
Image
Hypoptopoma inexspectatum by Gertbl, on Flickr

Image
Hypoptopoma inexspectatum by Gertbl, on Flickr

Image
Hypoptopoma inexspectatum by Gertbl, on Flickr

Hypoptopoma sp2 or thoracatum? (3 Specimens)
Image
Hypoptopoma sp. by Gertbl, on Flickr
Image
Hypoptopoma sp2 by Gertbl, on Flickr

The last one, is a very small and has a sharp head.
In the Catlog I find three species that look similair to this species. (1 specimens)
Hypoptopoma brevirostratum?
Hypoptopoma cf. guianense?
Hypoptopoma spilogaster?
Image
Hypoptopoma sp? by Gertbl, on Flickr

Image
Hypoptopoma sp? by Gertbl, on Flickr

It would be helpful to me to find out which correct species I have.