dc:description"Figure 7. Scanning Electron Microscopy (SEM) and stacked light microscopy images of representative specimens of A. brunnea: A, B DANA _ 3929 VIII C SN 105 _ 08, A. vanderspoeli: D-E DANA _ 3558 VII (Holotype, NHMD- 232132) F KH 1110 _ 15 and A. turriculata: G, H DANA _ 3929 VIII I SN 105 _ 19. Apical angle is the most useful morphological feature for distinguishing between the species (B-C, E-F, H-I). The shell of A. brunnea is always brown (C); however, the colour of A. vanderspoeli and A. turriculata shell and soft tissues (F, I) can vary and these are not reliable features for identification.";
dc:description"Figure 8. SEM images of the A. vanderspoeli holotype from station DANA _ 3558 VII (NHMD- 232132) A apical view of the entire shell showing the rapid inflation of the shell B magnified view of the micro-ornamentation C magnified apical view showing the extent of the carina.";
dc:description"Figure 3. A Distribution maps showing the collection locations for each clade identified in B. The collection location of specimens of A. turriculata forma B identified by van der Spoel (1976) from offshore of Ternate Island is marked with a white triangle B maximum likelihood phylogeny based on the mitochondrial cytochrome c oxidase subunit 1 gene, with strong bootstrap support for four clades within the A. brunnea group. Atlanta vanderspoeli is supported as a valid species, and A. brunnea is formed of two geographically isolated clades. Bootstrap support (%) for nodes is displayed and branch lengths are proportional to the amount of inferred change, as indicated by the scale bar (mean number of nucleotide substitutions per site).";
dc:description"Figure 10. Five specimens of Atlanta turriculata forma B identified by van der Spoel and held in the collection at the Naturalis Biodiversity Center. These specimens are now designated as paratypes of Atlanta vanderspoeli RMNH. MOL. 342212.";
