New York Natural Heritage Program
Watercress Snail
Fontigens nickliniana (I. Lea, 1838)

Habitat [-]
These snails can be found in a variety of habitats ranging from small lakes to springs and spring-fed streams to a few caves (Hershler et al., 1990). However, they are primarily confined to calcium rich, cold hardwater shallow slowly flowing forested springs associated with lush beds of watercress where they reach their maximum abundance. The snails live on and among the watercress, feeding on diatoms.

Associated Ecological Communities [-]
  • Spring
    The aquatic community of very small, cold stream sources where the flow is perennial. Springs are characterized by water with constant cold temperature and are rich in dissolved oxygen.

Associated Species [-]
  • Crested Mudalia (Leptoxis carinata)