The snail shows some attraction to Urticina lofotensis and Epiactis prolifera and it will feed on these species, but the attraction is less than that for Anthopleura. These anemones also show a stronger retraction when bitten by the snail, so perhaps the snail anesthetic is most effective with Anthopleura. They are not attracted to Corynactis californica and are repelled by Metridium senile. Some snails contacting Metridium senile were killed.
The species produces sand-encrusted egg capsules which are strung together by a thread. The capsules are laid among their anemone prey.
Small Pagurus hirsutiusculus hermit crabs frequently inhabit the empty shells.
The name "wentletrap" is from the German or Dutch word for "winding staircase".
- Rice, Tom, 1973. ; Marine Shellsof the Pacific Coast. ; Erco, Inc., Tacoma, WA. ; 102 pp. ;This little paperback book contains color photos and descriptions of chitons,shelled gastropods, bivalves, and brachiopods in the Pacific Northwest. ;The map suggests that the coverage is from Alaska to Washington. ;Tom Rice was editor of "Sea and Shore" magazine. http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Rice+1973
- Harbo, Rick M., 1997. ;Shells and Shellfish of the Pacific Northwest: ; A Field Guide. ;Harbour Publishing, Madeira, BC. Canada. ; ISBN 1-55017-146-1. ;Paperback, 271 pp. ; The front of this book has color photos and briefdescriptions of mollusks and brachiopods found in the northwest. ;The latter part of the book has somewhat more detailed descriptions keyedto the color photos. ; Organized taxonomically. http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Harbo+1997
- Morris, Percy A., 1966. ;Pacific Coast Shells. ; Peterson Field Guide. ; 297 pp, paperback. ;Houghton Mifflin Co., Boston. ; ISBN 0-395-08029-0. ; Brief descriptionsand mostly black-and-white photos of hundreds of shells found on the NorthAmerican Pacific coast. http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Morris+1966