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New Pseudohemiodon sp. from Peru

Home Forums Fresh and Brackish Water Fishes New Pseudohemiodon sp. from Peru

This topic contains 0 replies, has 1 voice, and was last updated by  Matt 6 years, 2 months ago.

Viewing 8 posts - 1 through 8 (of 8 total)
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  • #301774

    Erlend D Bertelsen
    Participant

    Some weeks ago I received this nice looking fish from Peru. I had never seen such a Pseudohemiodon before and contacted my friend Norman Behr (German breeder an expert in Pseudohemiodon spp). He also got very interest in the fish, and had also not seen such a specie before. It has similarities to the Pseudohemiodon sp Peru II from Wels Atlas 1. When we contacted the exporter they said that the fish was collected in Rio Amazonas itself, and not fare from Iquitos. This makes it possible but not likely to be Pseudohemiodon amazonus. Type locality is about 1500km away, and this fish is not to been seen in life or in pictures anywhere. Even the scientific description was hard to get hold of, and when I finally did get it (Thanks to the a friend at University Museum of Bergen), it was pretty useless. I am now waiting to get hold of the holotype of the Pseudohemiodon amazonus, to be sure. It is likely this is a new specie.

    If anybody could shade some light on witch spice this is, please help me!
    For anybody else, I hope you enjoy this nice looking and very interesting fish!

    E

    Attached files

    #345585

    torso
    Participant

    very nice looking indeed. did you contact H.G. Evers?
    cheers Charles

    #345592

    Matt
    Keymaster

    You’ve already discounted P. lamina and P. thorectes Erlend?

    #345597

    Erlend D Bertelsen
    Participant

    I have not contacted Evers.

    As fare as I can se, this fish don’t match ether P. lamina or P. thorectes. Both color and pattern as well as morphological features don’t match. This fish has a long and pointed rostrum with a different and high contrasting pattern.

    E

    #345616

    Matt
    Keymaster

    Interesting, and you are having the holotype sent to you?

    #345618

    Erlend D Bertelsen
    Participant

    Not directly to me of course, but to the University of Bergen. It is far from certain that they will receive it either.

    I find it strange that Pseduhemiodon amazonus is accepted in the science.
    The description is extremely poor
    It is based on one fish
    And the fish is as fare as I know, not photographed. (it is probably, but not many have seen it)

    E

    #345633

    Norman Behr
    Participant

    Hi,

    QUOTE (torso @ Oct 11 2011, 11:50 PM) < {POST_SNAPBACK}>
    very nice looking indeed.


    The fish resembles to P. lamina or an undescribed species called P. sp. “Peru II”. Erlend explained the differences to P. lamina. In color pattern the differences to P. sp. “Peru II” is the missing dark body crossing band at the dorsal fin. Morphological the ventral fins are too small und the whole fish too skinny.

    QUOTE (Matt @ Oct 12 2011, 09:09 AM) < {POST_SNAPBACK}>
    You’ve already discounted P. lamina and P. thorectes Erlend?


    In fact there are some similarities to P. lamina, but it isn’t.
    At the moment I keep and breed both species and they differ a lot from this new species.
    Erlend has explained this.

    QUOTE (Erlend D Bertelsen @ Oct 13 2011, 11:21 AM) < {POST_SNAPBACK}>
    I find it strange that Pseduhemiodon amazonus is accepted in the science.
    The description is extremely poor
    It is based on one fish
    And the fish is as fare as I know, not photographed. (it is probably, but not many have seen it)


    Yes thats a problem!
    I think (refering to Rapp Py-Daniel) that could be one reason why we have to wait a long time for new descriptions of new Pseudohemiodon species.

    cheers
    Norman

    #345640

    Matt
    Keymaster

    Is there any specific reason why P. amazonum hasn’t been recollected since 1941?

    Norman, welcome.

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