The compositions of diacyl glyceryl ethers in the flesh lipids of deep-sea teleost fish, Seriollela sp. and S. punctata, were determined. In these species, the flesh lipids yielded high levels of 13.8% and 11.5%, of which non-polar lipids occupied more than 97.3%. The contents of diacyl glyceryl ethers and triglycerides in non-polar lipids were 6.7% and 85.3% for Seriollela sp., and 2.0% and 90.2% for S. punctata, respectively. In these species, the amount of glyceryl ethers in unsaponi fiables

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... was greater than the amount of sterods: 56.6% (Seriollela sp.) and 46.8% (S. punctata) for the former, and 17.3% (Seriollela sp.) and 36.7% (S. punctata) for the latter. Both diacyl glyceryl ethers and glyceryl ethers were found in relatively large amounts in Seriollela sp. as compared with S. punctata. The glyceryl ether compositions of diacyl glyceryl ethers were similar in Seriollela sp.