Paedocypris, a new genus of Southeast Asian cyprinid fish with a remarkable sexual dimorphism, comprises the world's smallest vertebrate.

Proceedings. Biological Sciences
Maurice KottelatKai-Erik Witte

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.

References

Jan 1, 1993·Journal of Molecular Neuroscience : MN·S WeilerJ M Tomich

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Citations

Apr 10, 2008·Biological Reviews of the Cambridge Philosophical Society·Göran E Nilsson, Sara Ostlund-Nilsson
Dec 18, 2009·Biological Reviews of the Cambridge Philosophical Society·Steven L Chown, Kevin J Gaston
Jan 19, 2012·PloS One·Eric N RittmeyerChristopher C Austin
May 23, 2012·PloS One·Shaojun LiuYunhan Hong
Mar 28, 2009·Proceedings. Biological Sciences·Ralf BritzLukas Rüber
Mar 20, 2012·Zoology : Analysis of Complex Systems, ZACS·Katie Lynn StaabL Patricia Hernandez
Dec 30, 2015·PeerJ·Anne E ThessenPaula M Mabee
Apr 24, 2009·Journal of Morphology·Ingmar Werneburg, Stefan T Hertwig
Mar 14, 2007·Evolution; International Journal of Organic Evolution·Michael P Gillman
Mar 18, 2010·Journal of Morphology·Katie Lynn Staab, L Patricia Hernandez
Dec 15, 2012·The Journal of Animal Ecology·Andrew D C MacCollJob de Roij
Jun 19, 2010·Journal of Fish Biology·V C ChongC M Lau
Jun 16, 2011·Molecular Phylogenetics and Evolution·Kevin L TangRichard L Mayden
Aug 17, 2010·Developmental Biology·Xi WangVladimir Korzh
Dec 10, 2013·Veterinary Pathology·E D LombardiniJ C Harshbarger
Aug 12, 2014·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Ingo BraaschJohn H Postlethwait
Nov 22, 2015·Journal of Morphology·Ralf Britz, Kevin W Conway
Jan 24, 2019·Journal of Fish Biology·Dario R Faustino-FusterLuiz R Malabarba
Jun 1, 2018·Proceedings of the National Academy of Sciences of the United States of America·Michael E Alfaro
Feb 16, 2018·Annual Review of Animal Biosciences·Vydianathan Ravi, Byrappa Venkatesh
Apr 24, 2018·Genome Biology and Evolution·Martin MalmstrømLukas Rüber
May 3, 2018·Genome Biology and Evolution·Casey McGrath
Dec 17, 2020·Developmental Dynamics : an Official Publication of the American Association of Anatomists·Kevin W ConwayRalf Britz
Feb 2, 2021·Science Advances·Orlando B GiorgettiThomas Boehm
Jun 2, 2021·ELife·Daniel J PaluhDavid C Blackburn
Oct 20, 2006·Experimental Gerontology·Eva TerzibasiAlessandro Cellerino

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