A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
The Ascidian Sperm Reaction
SYNOPSIS. Ascidian sperm are simplified by omission of the midpiece and proximal centriole with the single mitochondrion located next to the nucleus in the head. Small acrosome-like vesicles appear in some species but their distribution is unclear. Sperm structure correlates well with the location of fertilization; members of the orders Phlebobranchiata and Stolidobranchiata with external fertilization have sperm with short heads and long tails, while sperm from the exclusively internallydoi:10.1093/icb/22.4.841 fatcat:nqmjf3wwvbadfl7vhi67mpwgyi