On some eye-abnormalities in the Malabar sole, Cynoglossus macrostomus Norman

Seshappa, G (1971) On some eye-abnormalities in the Malabar sole, Cynoglossus macrostomus Norman. Journal of the Marine Biological Association of India, 12 (1&2). pp. 171-174.

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Abstract

In a previous note (Seshappa, 1970) the present author has described a specimen of Cynoglossus semifasciatus Day with the right eye on the ' blind ' side of the head, almost in the original unmetamorphosed symmetrical position, and the left eye in its normal adult position on the coloured side of the body ; this is apparently the first instance of this kind recorded for any flat-fish in the Indo-Pacific region. Two more such specimens with the eyes situated in positions similar to the above have been since discovered. Also a large number of instances of eye-abnormalities of various degrees have been noticed by the author so far in the routine collections of this species examined during the years 1965-69. As the position of the eye and its migration form a very important part of the metamorphosis in the flatfishes, these specimens have been examined in some detail and the present paper gives an account of the results of these studies together with a discussion of the probable significance of the various abnormalities noticed.

Item Type:Article
Uncontrolled Keywords:eye-abnormalities;Malabar sole; Cynoglossus macrostomus
Subjects:Fish Diseases
Divisions:CMFRI-Cochin > Physiology and Nutrition Pathology
ID Code:947
Deposited By:Dr. V Mohan
Deposited On:08 Jun 2010 12:19
Last Modified:10 Jun 2010 14:59

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