black coral Directory References Discover Why Do Some Cicadas Appear Only Every 17 Years? Poker Hands Ranked 7 of the World’s Deadliest Plants 12 Novels Considered the “Greatest Book Ever Written” Timeline of the 2000s 9 of the World’s Deadliest Snakes Water Fluoridation: Just the Facts Contents black coral invertebrate Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:classification In coral…Scleractinia) number about 1,000 species; black corals and thorny corals (Antipatharia), about 100 species; horny corals, or gorgonians (Gorgonacea), about 1,200 species; and blue corals (Coenothecalia), one living species.Read More
