Figure 13.1-13.25. 1-4. Aff. Oolina caudigera. 1. oblique view showing aperture. 2. side view. 3. close-up of aperture. 4. side view, trace of contact with sponge spicule and tips of spicules poking out of test wall. Shipek grab TUL99A017, >1 mm. 5-8. Aff. Oolina caudigera detached from its sponge substrate. 5. oblique view; the lower part of the specimen looks like substrate material but is actually a rough-looking part of the test wall. There are only two small extraneous fragments attached to the test. 6. lateral view (opposite side of Figure 13.6) showing gap at the place where the meshwork was. 7. apertural view. 8. close-up of aperture showing radial structure. IKU grab TUL99A07, surface subsample ("forams"), sponge fraction. 9-10. Aff. Oolina caudigera. Apertural view of etched specimen. This preservation is typical of most individuals. 9. apertural view. 10. close-up of contact between test and spicule showing attachment frills. Shipek grab TUL99A019, sponge fraction. 11-13. Aff. Oolina caudigera attached to meshwork, with small secondary aperture ("basal spine" in free Oolina?). 11. oblique view; main aperture is at left, secondary aperture is at top. 12. side view; main aperture is at right (arrow), secondary aperture at bottom. 13. close-up of secondary aperture. Shipek grab TUL99A017, >1 mm. 14-16. Aff. Oolina caudigera. 14. External view of broken off fragment of apertural region. The radiate aperture indicates it is an aff. O. caudigera. 15. Same, showing interior; entosolenian tube is broken but visible. 16. close-up of entosolenian tube; the calcite crystal are probably secondary. IKU grab TUL99A07, surface subsample ("forams"). 17-18. Aff. Oolina caudigera. Specimen attached to meshwork. 17. side view. 18. oblique view. The aperture rests against a spicule that had fallen off at the time Figure 13.17 was taken. Shipek grab TUL99A017, >1 mm. 19-21. Aff. Oolina caudigera. This deeply etched specimen was found trapped inside the meshwork. 19. oblique view of oral end. 20. side view showing an indeterminate prominence by which it may have been attached. 21. oblique aboral view showing skewed basal "spine" or tube. Slurp gun sample SLRP4775, sponge fraction. 22-23. Aff. Oolina caudigera. This specimen was found loose. 22. side view. 23. apertural view. Slurp gun sample SLRP4771, <1 mm.