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banjohead
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 Posted: Mon Aug 16, 2010 11:51 pm Post subject: Re: Various catfish. |
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Thanks all. 
Balaji, nice pics! I'm prtobably going to agree with you on the ID as well.
Apuda2010, your ID is correct, H. fossilis is known as shinghi locally. However the Mystus sold in our markets is more often than not Mystus vittatus and not M. tengara. Locally however it is still known as tangra.
H. fossilis and Mystus are indeed found aplenty, alive and not, both in the markets within the city and outside. However i highly doubt that a piebald/albino/or any other colour morph for practically any fish will find itself in one of the local markets.
The rest of the Mystus as you are probably aware is not found in W. Bengal.
Gokul, precisely why i put them in the photo tank. :D
Here are a couple more -
Spereta aor.
Ompok bimaculatus.
Ompok malabaricus.
The malabaricus was huge, barely fit into the photo tank.
Thats it for the week guys, going out into the field for a while, will update the following weekend. |
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headbanger_jib
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Location: Mysore
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| Posted: Tue Aug 17, 2010 5:21 am Post subject: Re: Various catfish. |
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hey neil, what is the sperata eating
and if by some chance u have gotten it to go at dry foods lemme know how and what
right now mine eats only ghost shrimp and feeders
a stubborn fish to change to dry foods |
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Shovelnose
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| Posted: Tue Aug 17, 2010 6:05 am Post subject: Re: Various catfish. |
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I think the O.bimaculatus you have posted is an O.malabaricus only. The Indian O.bimaculatus are mostly silver in colour. Other than this, they differ in the count of the anal fin rays.
Here s a coupla pics of a malabaricus we collected from the Tambraparani River. Not the most exquisite pics.
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Shovelnose
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| Posted: Tue Aug 17, 2010 2:17 pm Post subject: Re: Various catfish. |
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And here s O.bimaculatus from the same river :
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Shovelnose
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| Posted: Sun Aug 22, 2010 4:10 pm Post subject: Re: Various catfish. |
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Days' s M.armatus figure represents a very 'stout' fish. The one here seems to be quite slender when compared.
Anyone wanna take a shot at morphometrics / meristics??? |
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Shovelnose
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| Posted: Mon Aug 23, 2010 10:53 am Post subject: Re: Various catfish. |
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Here s M.armatus as ID'd on another forum. Collected from the Tambraparani.
Body depth and shape of the adipose seem to suggest its different from the one posted here.
Ps : I know I need to clean the photo tank. |
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banjohead
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| Posted: Mon Aug 23, 2010 8:27 pm Post subject: Re: Various catfish. |
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Hello folks, i'm back. :D
Balaji, still not sure about the Ompok, the bimaculatus in your pics is a juvenile, looks to be 3-4" in length? The specimen i saw was a good 8-9.5" long, so comparing the two with colouration would not be justifiable.
The M. armatus pictured was the only one we could catch out of the tank, probably as it was weak from not being able to eat properly. He keeps all the Mystus together in one tank so i'm guessing there would be plenty territorial issues. Some fish are very healthy, some underfed.
Here's a couple of Mystus vittatus which is probably a pair, they're kept separately in another tank, and so there's a possibility of them spawning.
The male -
The female-
The pair together
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hems
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| Posted: Mon Aug 23, 2010 8:45 pm Post subject: Re: Various catfish. |
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| banjohead wrote (View Post):
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Hello folks, i'm back. :D
Balaji, still not sure about the Ompok, the bimaculatus in your pics is a juvenile, looks to be 3-4" in length? The specimen i saw was a good 8-9.5" long, so comparing the two with colouration would not be justifiable.
The M. armatus pictured was the only one we could catch out of the tank, probably as it was weak from not being able to eat properly. He keeps all the Mystus together in one tank so i'm guessing there would be plenty territorial issues. Some fish are very healthy, some underfed.
Here's a couple of Mystus vittatus which is probably a pair, they're kept separately in another tank, and so there's a possibility of them spawning.
The male -
The female-
The pair together
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HOW TO IDENTIFY MALE FEMALE IN THIS, I ALSO GOT TWO
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rimpel
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| Posted: Mon Aug 23, 2010 8:54 pm Post subject: Re: Various catfish. |
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Imaging fish collection Like a alien fish  |
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Shovelnose
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| Posted: Tue Aug 24, 2010 9:51 am Post subject: Re: Various catfish. |
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The O.bimaculatus I posted here is small. There was another slightly bigger one with the same colouration too. Not the giant sizes you have posted though. Much smaller.
Does it have a peduncular spot??? I cant see one in the pics. You will see a very faint peduncular spot in the silver one I have posted thereby confirming the bimaculatus ID.
Had the Mystus 'checked out' by a friend. The tengra is carcio. |
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banjohead
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| Posted: Thu Aug 26, 2010 2:11 am Post subject: Re: Various catfish. |
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Balaji, the armatus is definitely too skinny and underfed to give a conclusive ID, i'll try and see if we can catch one of the healthier fish and shoot it this week. Could be M. montanus as well.
I'm still maintaining that the fish is M. tengara and not M. carcio. These were caught locally from near Kolkata from what i know, and carcio would be from N. bengal and furthur upwards. Also, i haven't scrutinized the fish dorsally, but carcio should have a long and wide fontanelle with a thick bar splitting it. I'll have to go look at the fish again closely, but i don't remember noticing that,
The M. malabaricus and M. canarensis look correct though.
More coming up soon. |
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