1. 1. The sterol compositions of two oceanic and three inter-tidal zone species of annelid have been analysed by combined GC-MS techniques and the results compared with previous analyses. 2. 2. It was found that the oceanic annelids had more complex sterol profiles in which small quantities of 5α-stanols were present, whereas in the simpler profiles of the intertidal zone species, 5α-stanols were normally absent. 3. 5. It was also found that lugworm species from South Africa and South Wales contained substantially identical sterol compositions. © 1978.
Ballantine, J. A., Lavis, A., Roberts, J. C., Morris, R. J., Elsworth, J. F., & Cragg, G. M. L. (1978). Marine sterols-VII. The sterol compositions of oceanic and coastal marine annelida species. Comparative Biochemistry and Physiology -- Part B: Biochemistry And, 61(1), 43–47. https://doi.org/10.1016/0305-0491(78)90211-0