Abstract
ON June 4 last, I was surprised to find a number of fresh-water medusae in the Periyar Lake in Travancore. From the shape of the manubrium and the presence of the gonads on the manubrium, and the shape and the arrangement of the nematocysts, the medusæ undoubtedly belong to the genus Limnocnida which has previously been recorded from India. The Periyar Lake, about ten square miles in extent, has been formed by damming at its source in the Western Ghats the River Periyar, which flows westwards. Although the river fluctuates with the seasons, the lake contains deep water all the year round. It is noteworthy that fresh-water medusae were found by Mr. S. P. Agharkar, but were in a river system which flows eastwards across the continent and enters the Bay of Bengal.
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DARLING, P. Occurrence of Limnocnida in the Periyar Lake, Travancore. Nature 135, 151 (1935). https://doi.org/10.1038/135151a0
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DOI: https://doi.org/10.1038/135151a0
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