Squids
Unlike snails and clams, squids are not hermaphrodites. Female squids have glandular organs know as Nidamental organs that lie behind the gills. These organs are known to manufacture eggs for reproduction, so obviously they are not found in males. Females also have a translucent ovary situated behind the Nidamental organs, which is where fertilization takes place. Males also have similar organs, structurally and position, to the females, except that they have completely different functions. In place on the ovaries,, the male squid has a large testie. This organ contains spermaphrodites. Squids, while known to live in deep water, actually mate in shallow water in the continental shelf. The male squid has a specialized “arm” that is used to fertilize the female eggs.