A reader wrote to us about a brown worm on his patio that was crawling toward a leaky water pipe. The reader was quite taken by the worm, and said “it was amazing!” The worm is about four inches (10 centimeters) long, and it had “titticles that parted.” While we find the word “titticles” to be excellent, not least because of is sexually confused connotations, we presume our reader meant tentacles. What could this brown worm with tentacles on the patio have been?