FIGURE 4. Jasonisis thresheri n. gen., n in A new genus and species of the family Isididae (Coelenterata: Octocorallia) from a CMAR Biodiversity study, and a discussion on the subfamilial placement of some nominal isidid genera

FIGURE 4. Jasonisis thresheri n. gen., n. sp., holotype, axis: A, interior of a twig internode showing partitions (light microscope image); B, exterior of a twig internode (SEM image); C–D, examples of nodal branching (light microscope images); E, branch internode cross-section (light microscope image by Ron Thresher); F, interior of branch internode showing partitions (SEM image); G–H, twig internode surface (SEM images).