Tentacles Like other terrestrial abalone, most terrestrial slugs have two pairs of "tentacles" or tentacles on their heads. The upper pair is light-sensing, with eye-spots on both ends, and the lower pair provides a sensation of odor. Both pairs are retractable.
What is the antenna of a slug called?
The upper tentacles are called optical tentacles and are the eyes of slugs. Optical tentacles have light-sensitive eye-spots on the edges that can be regrown if lost. These are also used for odors. The lower pair are two small tentacles, used for sensation and tasting.
What is a slug uplift?
If you look closely at the slugs, you will see a cowl or lump on your back near your head. The size of the cowl is one of the things researchers pay attention to when identifying the type of slag. They also look under the cowl that covers the slug's reproductive organs.
What is the thing on the snail's head called?
Most terrestrial snails have one or two pairs of tentacles on their heads. In most terrestrial snails, the eyes are carried to the first (upper) set of tentacles (Omatofor or more informally called the "eyestalk"). This is usually about 75% of the width of the eyes. The second (lower) set of tentacles acts as the sense of smell.
Does the slug have a disc?
There is a genital opening on the right side of the slug's head, just below the tentacles. When visible, it is a brownish depression or milky white disc.
Below you will find two helpful answers on a similar topic. 👇
Do slugs have tentacles or antennae?Where are snails tentacles?
