Ixodes Pacificus, also known as the western black-legged tick, is a common parasite found in the western region of North America. While this tick is widely recognized by its scientific name, there are several other synonyms used to denote this species. Some common synonyms include deer tick, Pacific Coast tick, and black-legged tick. These names are based on specific characteristics of the tick, such as their preferred hosts (such as deer) and their geographic location (the Pacific coast). Regardless of the name used, it's important to protect yourself from the tick's potentially harmful bite by taking precautions such as wearing long-sleeved clothing and using insect repellent.