Reader in Oregon Finds Giant Earthworms

A reader recently shared an exciting worm story with us. He wrote, “I want to share a picture of a species of giant earthworms found in the coastal mountains of Oregon, west of Salem. These worms are of the Driloleirus species and I am super-proud to say that I have found a not-yet-described Driloleirus species! The largest I have found so far was slightly over twenty inches in length. I have shared specimens with two ‘worm experts’ and have sent other specimens to the University of Idaho for genetic testing. I have found three different varieties of the Driloleirus earthworms, along with several other native species that I have not had identified, and I hope to collect as many varieties as possible this fall and winter. It has been incredibly interesting and I hope to find more specimens after the Autumn rains return, I can hardly wait.” He sent us a few fantastic photos as well:

It is incredibly exciting and impressive that our reader was able to find these giant earthworms! Driloleirus earthworms belong to the Megascolecidae family and are found in Australia, New Zealand, parts of Asia, and North America. These giant earthworms are extremely uncommon and rare to find. In fact, there have been documented sightings in only fifteen locations in Oregon. These earthworms can grow to be up to be more than three feet long. As our reader mentioned, the longest one he found was about 20 inches:


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Driloleirus earthworms are native to Oregon. They have a narrow habitat range since they favor fine textured soils that are rich in clay. They are associated with deep soils in forests with high humidity full of fir trees, maples, and oaks. They can also tolerate some soils of coniferous forests.

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To wrap up, one of our readers wrote to inform us that he found some rare giant earthworms in Oregon. This is an incredible feat and we are very happy that our reader has shared this worm experience with us! Congratulations to James on his discovery!

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Reader in Oregon Finds Giant Earthworms
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Reader in Oregon Finds Giant Earthworms
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One of our readers wrote to inform us that he found some rare giant earthworms in Oregon. This is an incredible feat and we are very happy that our reader has shared this worm experience with us!
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Author: Worm Researcher Dori

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