Banana Slug
Tracks and Sign

Ariolimax columbianus



The Banana Slug

A bright yellow variety of banana slug.


This banana slug is the spotted variety. They are the same species, but the coloration can vary from plain bright yellow, to a spotted appearance like this. This slug is not stretched out full length.

Another spotted banana slug. This one is not stretched out at all.

A banana slug with its scat. Banana slug scat is one of the most common signs you will find that indicate the presence of this critter.The scat is expelled from the hole on the side of the slug's "head." The hole is located on the right side of the head. 


Close-up of banana slug scat. Their scats may be deposited on walls, the ground, leaves, tree bark, and many other locations. Just about anywhere you find the slugs!) The other commonly seen sign is the slime trail. Slugs leave a continuous line of slime, unlike snails, which leave discontinuous spots of slime. 


Here is a close-up showing the feeding sign of a banana slug on a mushroom. The scalloped appearance is typical of their feeding sign.

More banana slug feeding sign on a mushroom.
Banana slug scat with some slime, found on a window
Banana slug scat and slime trail on a leaf.
A banana slug slime trail across a dirt road shows up well in afternoon sunlight when viewed at the right angle.
Banana slug trail in the wet sand near a river

Personal Notes on the Banana Slug


Banana slugs are quite common in my area. They are often active during and after rainstorms. During the summer, they can be seen on cool mornings, but retreat to more sheltered and moist locations during the heat of the day. They are active year-round. 




Got a slug story? E-mail me and tell me about it.

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Copyright 2016, 2018. Text and photos by Kim A. Cabrera


Copyright   2013, 2016, 2018. Kim A. Cabrera - Desert Moon Design

Page updated: June 11, 2018

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