A sexually mature female O. defilippi being measured for mantle length. This same animal is shown at about half this mantle length and still immature in image 1079. This animals has a dorsal mantle length of about 8.5cm. Large whitish mass visible through the skin in the bottom half of the mantle cavity is the ovary.
Maturity: Adult; Sex: Female; Lab or Wild: Lab; Origin: Caribbean sea, u.s. virgin is.