Description 6. Transversal section passing through the aperture. 9. Holotype, longitudinal section. (From Henson, 1950)Author Consorti, LorenzoPNG file - 364.57 kB - 818 x 1 200 pixelsadded on 2024-04-15274 views This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License