Amphipneustes rostratus
Amphipneustes rostratus is a species of sea urchin of the family Temnopleuridae. Their armour is covered with spines. It is placed in the genus Amphipneustes and lives in the sea. Amphipneustes rostratus was first scientifically described in 1926 by Koehler. See also 
Amphipneustes marsupialis (Koehler, 1926)
Amphipneustes mironovi (Markov, 1991)
Amphipneustes similis Mortensen, 1936

References 

Amphipneustes
Animals described in 1926