Please help me identify loach from Borneo

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Please help me identify loach from Borneo

Postby Bekantan » Sun Jul 31, 2016 11:10 pm

Hello all
I am new here so let me introduce myself briefly. I am an aquarist and scientist from the UK with a personal and professional interest in all things fishy. I am currently in Borneo where I have been on an expedition in the forest in Central Kalimantan. In the small black water (pH = 4) river by our camp I caught this lovely loach that I have so far failed to identify. I have tried using the pictoral guide on this site, but to no avail. Could the experts here please point me in the right direction?

This specimen was caught in intact forest over peat substrate:
Image

The others were caught over white sand/gravel left by past gold mining operations, over here:
Image

On this substrate the (smaller) fish were pale but coloured up rapidly in dark bucket.
Image
Image

Many thanks in advance.
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Re: Please help me identify loach from Borneo

Postby Bekantan » Mon Aug 01, 2016 6:23 am

Nemacheilus species, or related genus?
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Re: Please help me identify loach from Borneo

Postby atmichaels » Mon Aug 01, 2016 7:40 am

Not an expert but it looks a lot like n. selangoricus or spiniferus
Currently keeping: gastromyzon spp., hypergastromyzon humilis, pseudogastromyzon sp., sewellia spp., ambastaia sidthimunki, homaloptera spp., serpenticobitis octozona, Yaoshania pachychilus. As well as various catfish, loricarids, livebearers and tetras.
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Re: Please help me identify loach from Borneo

Postby gulogulo » Mon Aug 01, 2016 8:33 am

I would definitely agree that it looks like Nemacheilus sp.
Current loach residents- 14 Pangio semicincta, 2 P. doriae, 4 P. myersi, 1 P. shelfordi, 5 P. anguilaris, 6 P. oblonga, 8 P. cuneovirgata 5 Chromobotia macracantha, 3 Gastromyzon ctenocephalus, 3 Gastromyzon species unknown
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Re: Please help me identify loach from Borneo

Postby Bekantan » Mon Aug 01, 2016 8:44 am

atmichaels wrote:Not an expert but it looks a lot like n. selangoricus or spiniferus


Thanks. N. selangoricus group looks like a good call. The pattern of the fish I caught is consistently different though from any of the photos I can find of species in this group. My largest specimen (1st photo) was 70mm SL and the maximum recorded length for N. selangoricus is 59mm. Also, none of the species in this group appear to have been recorded from Central Kalimantan.
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Re: Please help me identify loach from Borneo

Postby ch.koenig » Mon Aug 15, 2016 6:41 pm

Hi Frank
N. spiniferus was my first guess.
Made me think of Nemacheilus tebo.
http://lkcnhm.nus.edu.sg/rbz/biblio/57/57rbz119-125.pdf
Size would fit, close to N. selangoricus-group. Description comes close.
But: no record outside Lake Tebo-region.
And we have no good pics
Cheers Charles
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Re: Please help me identify loach from Borneo

Postby Bekantan » Thu Aug 25, 2016 9:12 am

Thanks Charles. Interesting suggestion. I will follow up withth authors.
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Re: Please help me identify loach from Borneo

Postby piggy4 » Sun Nov 20, 2016 1:25 pm

Chrysolaimos ?
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