The chiton Calloplax vivipara was previously considered as ovoviviparous . However, six females of C. vivipara found on Chilean coast brooded both ova and juveniles in their pallial grooves. Therefore, the data of Plate [39, 40] about ovoviviparity in C. vivipara are to be considered incorrect. The present study discusses four methods of reproduction in chitons: (1) free spawning of separate eggs into the water; (2) spawning of eggs as a mucous mass or a mucous string on the bottom; (3) spawning of eggs into the pallial groove of a female, where eggs and larvae are brooded; and (4) spawning of eggs with hulls (capsules) on macroalgal thalli. Tables with lists of brooding species of chitons are included in the paper. Four brooding species have been recorded for the first time, thus increasing the number of brooding species of chitons to 41.
Russian Journal of Marine Biology – Springer Journals
Published: Apr 8, 2015
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