Brief Summary

Read full entry

Living Material

The adults and vase-shaped egg-capsules of the oyster drill are found on rocks between tide levels. Near Woods Hole, Mass., they are abundant at Grassy Island (the Spindle) and at Sheep Pen Cove on Nonamessett Island. The sexes are separate. Males are easily recognized by the long, curved penis, which is located on the right side of the body behind the eye.

Federighi (1931) and Nelson (1931) both observed that breeding begins when the water temperature has remained for at least a week above 20° C. At Woods Hole, the season begins late in May (Bumpus, 1898), and probably continues throughout the summer.


Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Donald P. Costello and Catherine Henley

Source: Biodiversity Literature Datasets

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!