Eisenia hortensis is a large composting/fishing worm that grows to over twice the size of its cousin, the Red Wiggler (Eisenia foetida).  Watch a

The European Nightcrawler can grow up to 8 inches and has a reputation for one of the best bait worms available. Its thick skin gives it the ability to live longer on the hook than any worm sold today (even in brackish and saltwater).

These bed run worms are shipped in breathable bags and will come in various
sizes, from juvenile to breeder.  There are approximately 400 worms
per pound.  

Add Europeans to your indoor compost bin or outdoor compost pile.  For best
results, also feed them rabbit, cow, or horse manure.