Recent representatives of Acanthodesmiidae.
I, II) Paradictyum paradoxum Hck., plankton, Pacific Ocean: I) from the materials of A. I. Kuzjmina, 160a (at smaller magnification than II); II) same, “Vityaz”, station 5117, 100m; III) Lithocircus zonaris (Hck.), plankton, Pacific Ocean, “Vityaz”, station 3514. Other designations same as in fig. 10.