Publisher's Synopsis
Includes significant advances in knowledge of spermatozoalultrastructure of priapulida; mollusca: relict taxa; Polychaetaincluding pogonophora and myzostomida; euclitellata; nematoda;tardigrada; onychophora and chelicerta.
It is part of the ninth volume in the series: Progress in MaleGamete Ultrastructure and Phylogeny.