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  #1  
Unread 27th January 2006, 11:23 PM
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Myron Tay Myron Tay is offline
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Default World's Smallest Fish

Congratulations to Dr Tan Seok Hui on his latest discovery! Here's to more to come! [ber]

Maurice Kottelat, Ralf Britz, Tan Heok Hui & Kai-Erik Witte, 2006. Paedocypris, a new genus of Southeast Asian cyprinid fish with a remarkable sexual dimorphism, comprises the world's smallest vertebrate. Proc. R. Soc. B. doi:10.1098/rspb.2005.3419.

Abstract - Paedocypris is a new genus of paedomorphic cyprinid fish from highly acidic blackwater peat swamps in Southeast Asia.

It includes two new species, one of which (Paedocypris progenetica) appears to be the smallest fish and vertebrate known, with the smallest mature female measuring a mere 7.9 mm.

Paedocypris has many 'larval' features typically associated with paedomorphic fish (e.g. narrow frontals that leave the brain unprotected dorsally by bone and a precaudal larval-fin-fold), but, uniquely among fishes, males also possess highly modified pelvic fins with hypertrophied muscles and a keratinized pad in front of the pelvic girdle, which, we hypothesize, function together as a clasping or holding device, thereby suggesting an unusual reproductive mode.

Unfortunately, habitat destruction jeopardizes the survival of these fishes and thus opportunities for further research.

Dr Tan Seok Hui


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Unread 28th January 2006, 12:29 PM
amir gan amir gan is offline
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is the fish still alive in his tank???
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Unread 28th January 2006, 05:30 PM
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Yup. I understand that the adults are 7mm long. Dr Tan is trying to breed them in captivity.
 

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