Brissopsis elongata is a species of sea urchins of the family Brissidae. Their armour is covered with spines. Brissopsis elongata was first scientifically described in 1907 by Ole Theodor Jensen Mortensen.Kroh, A. (2010). Brissopsis elongata (Ole Theodor Jensen Mortensen, 1907). In: Kroh, A. & Mooi, R. (2010) World Echinoidea Database. at the World Register of Marine Species.
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