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Pectoral fin anomalies in the long-tailed butterfly ray, Gymnura poecilura collected from Nagapattinam coastal waters, south-east coast of India

Published online by Cambridge University Press:  27 September 2012

T.V. Suresh  and
S.M. Raffi
T.V. Suresh*
Affiliation:
CAS in Marine Biology, Faculty of Marine Sciences, Annamalai University, Tamil Nadu, India
S.M. Raffi
Affiliation:
CAS in Marine Biology, Faculty of Marine Sciences, Annamalai University, Tamil Nadu, India
*
Correspondence should be addressed to: T.V. Suresh, CAS in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India email: sureshcas2009@gmail.com
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Abstract

Occurrence of abnormal rays reported in Indian waters was stumbled upon in the late 19th Century, but it was revised in the early 20th Century and in the past two decades. Reported morphological abnormalities for elasmobranchs in the Indian waters are restricted to pectorals that fail to unite with the sides of the head and fins that developed thick muscular segments. The occurrence of the malformed or adapted specimen Gymnura poecilura suggested reasons for adaptations or malformations.

Keywords

abnormalitymalformationelasmobranchadaptation
Type
Research Article
Information
Marine Biodiversity Records , Volume 5 , August 2012 , e96
Copyright
Copyright © Marine Biological Association of the United Kingdom 2012

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