Echinothuriidae
![](/Images/godic/202501/10/Fire_Urchin_Asthenosoma_varium0136.jpg")
![](/Images/godic/202501/10/lossy-page1-282px-Araeosoma_thetidis_insitu.tif0136.jpg")
![](/Images/godic/202501/10/Toxic_Leather_Sea_Urchin_-_Asthenosoma_marisrubri0136.jpg")
![](/Images/godic/202501/10/Deep_sea_Echinothurioid0136.jpg")
Echinothuriidae is a family of sea urchins in the order Echinothurioida. Due to their soft skeletton most are called "leather urchins", but species in the genus Asthenosoma are also known as "fire urchins" due to their bright colors and painful venomous sting.