New Zealand Mudsnail
Common Name: New Zealand mudsnail
Scientific Name: Potamopyrgus antipodarum
Identification: A mature snail is usually less than 5 mm (.2 in) long. The shell is elongated and dextral (its whorls or spirals lean toward the right) and typically has between 5 to 6 whorls on its shell that are usually uniform in size. Most snails have a light to dark brown shell that may appear to be black when wet. The mudsnail operculum (a rounded plate that seals the mouth of the shell when the animal’s body is inside) can be seen on live snails but is not easily visible on dead or preserved snails.
New Zealand mudsnails are EXTREMELY SMALL!
Be sure to thoroughly clean and dry equipment before transporting it to a new water body.
Think you have seen New Zealand mudsnails?
If you find what you think are New Zealand mudsnails:
- Confirmed Detections of New Zealand Mudsnails and Didymo in Michigan Waters - MDNR, September 2015
- New Zealand Mudsnail - How to prevent the spread of New Zealand Mudsnails through field gear - Department of Fish and Wildlife, State of Oregon.