The appearance of Gonionemus vertens is usually described as having a transparent bell lined with 60–80 (exceptionally up to 100–110) tentacles. The gonads are … See more

Gonionemus vertens is a marine and brackish species from shallow coastal waters of the north Pacific region, but there is considerable uncertainty about its exact native distribution. It certainly … See more

In much of its range, Gonionemus vertens has a strong sting, which can cause pain, a swollen throat, chest tightness, muscle cramps, neuropsychiatric changes and anaphylactic shock. … See more

• An all-purpose guide labeling and discussing venomous and poisonous marine animals -- Venomous and poisonous marine animals: a medical and biological handbook See more