Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A novel trans-olefinic very -long-chain fatty acid was found in the lipids of the Lake Baikal sponges. It has a structure of 26:3 5c,9c,19t, as shown by chemical and instrumental methods. ... To determine the configurations of double bonds, their consecutive excluding ...