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Homaloptera spp.

Home Forums Fresh and Brackish Water Fishes Homaloptera spp.

Viewing 15 posts - 46 through 60 (of 90 total)
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  • #343640

    The.Dark.One
    Member

    Thanks guys. Do you reckon they are tweediei then?

    #343641

    Matt
    Keymaster

    How many branched pectoral rays has it got BB (Beel`zebub)?

    #343651

    Plaamoo
    Participant

    Nonn said smithi Matt(of the fish in my pic), but with only a quick look at the pic.

    #343655

    The.Dark.One
    Member

    QUOTE (Matt @ May 26 2011, 11:26 AM) <{POST_SNAPBACK}>
    How many branched pectoral rays has it got BB (Beel`zebub)?

    7 I think. Kottelat gives 3-5 simple and 7-11 branched for tweediei so the branched count fits in but not the simple. Pectoral rays too long for leonardi

    Attached files

    #343659

    Matt
    Keymaster

    Probable H. smithi then no? Following Kottelat it has 5-6 simple and 10-12 branched pectoral rays. Definitely not H. leonardi imo which should be more like this one.

    #343663

    The.Dark.One
    Member

    QUOTE (Matt @ May 26 2011, 09:19 PM) <{POST_SNAPBACK}>
    Probable H. smithi then no? Following Kottelat it has 5-6 simple and 10-12 branched pectoral rays. Definitely not H. leonardi imo which should be more like this one.

    Yes, not leonardi, as i said the pectoral fin rays are too long in mine, overlapping the ventral fins.

    I must be counting wrong because in my images I count 6 simple and 7 branched?

    #343664

    Plaamoo
    Participant

    Here’s one that I have. I count 6 & 11. If you compare two there’s an obvious difference.

    #343668

    Matt
    Keymaster

    Hmm, yeah great photos Jim and apologies for the poor counting from moi.

    #343673

    The.Dark.One
    Member

    QUOTE (Matt @ May 27 2011, 08:02 AM) <{POST_SNAPBACK}>
    Hmm, yeah great photos Jim and apologies for the poor counting from moi.
    #343676

    Plaamoo
    Participant

    So you reckon mine is smithi & TDO’s is tweedei?

    QUOTE
    is distinguished from Homaloptera smithi in that its pelvic and pectoral fins do not overlap.

    A quote from LOL, any truth to it?? I don’t have papers.

    By the way, my pic was taken in q-tank shortly after buying. They’ve plumped up!

    #343677

    Matt
    Keymaster

    I think that’s most likely Jim?

    The LOL quote is, as far as I understand things, incorrect. The pectoral fins ‘usually’ overlap the pelvics in all members of the H. wassinkii group.

    #343681

    Plaamoo
    Participant

    Thanks Matt!

    A pic taken today.

    #343682

    The.Dark.One
    Member

    According to Rainboth smithi has the pectoral fin extending well beyond ventral fin insertion, whereas in tweediei it just passes over.

    According to Kottelat:

    smithi – pectoral reaching beyond pelvic fin origin, 37-39 + 2 lateral line scales, pectoral with 5-6 simple and 10-12 branched

    tweediei – pectoral reaching pelvic fin origin, 32-36 + 2 l l scales, pectoral with 3-5 simple and 7-11 branched.

    #343684

    Plaamoo
    Participant

    Thanks for that^

    To my eyes, the pec fin on mine is longer than yours(don’t know if this could be age/sex/or just the position), but in both fish the pec fins overlap the pelvic fin origin. Agree? If so, going by the discription, neither are tweedei. ??????

    #343692

    The.Dark.One
    Member

    QUOTE (plaamoo @ May 27 2011, 06:47 PM) <{POST_SNAPBACK}>
    Thanks for that^

    To my eyes, the pec fin on mine is longer than yours(don’t know if this could be age/sex/or just the position), but in both fish the pec fins overlap the pelvic fin origin. Agree? If so, going by the discription, neither are tweedei. ??????

    Mine has 7 branched pec rays so is tweediei, yours falls within the range for both and the pec rays look the same proportionate length to me. I think the safest way is to look at lateral line scale counts which is difficult on these pics and fish but I’ve had a go at mine and it matches tweediei, so I’m confident mine is tweediei. Do you have a good quality pic of the whole side of the fish?

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