Thalassophryne

Thalassophryne is a genus of toadfishes found in the western Atlantic Ocean with one species (T. amazonica) found in the Amazon River and some of its tributaries.

Species
There are currently six recognized species in this genus:
 * Thalassophryne amazonica Steindachner, 1876
 * Thalassophryne maculosa Günther, 1861 (Cano toadfish)
 * Thalassophryne megalops B. A. Bean & A. C. Weed, 1910
 * Thalassophryne montevidensis (C. Berg (es), 1893)
 * Thalassophryne nattereri Steindachner, 1876
 * Thalassophryne punctata Steindachner, 1876

Venom
Members of the genus Thalassophyne are venomous. Venom is delivered through two hollow spines on the dorsal fin and two spines on pre-opercular regions, a venomous gland is located at the base of the spines and can be erected or depressed by the fish.