Quinqueloculina

Mamo, Briony L., 2016, Benthic Foraminifera from the Capricorn Group, Great Barrier Reef, Australia, Zootaxa 4215 (1), pp. 1-123 : 48

Quinqueloculina sp. cf. Q. victoriensis Collins 1974 ( Fig. 10 :16, 17)

Remarks. These specimens were tentatively assigned to Quinqueloculina victoriensis Collins 1974 due to their quinueloculine chamber arrangement, test being approximately twice as long as wide with strongly rounded peripheries and numerous distinct longitudinal costae that wrap around the slightly oblique, depressed sutures. The dentition consists of a single tooth within a Lachlanella -shaped aperture. Specimens collected from the CG were not numerous and were always damaged. As a result, and because of the reported intraspecific variation displayed by Q. victoriensis ( Collins 1974; Parker 2009; Debenay 2012), a more specific identification was not possible.

Distribution within study area. Quinqueloculina sp. cf. Q. victoriensis was collected from all reefs of the CG, except for Heron Reef flat. At each site, only a single specimen was collected, except for site 20 in Wistari Lagoon which yielded two specimens. Single live specimens of this species were collected from site 8 at Sykes Reef and site 7 in Wistari Lagoon.

Figures

FIGURE 10. (Unless otherwise specified all scale bars = 100 µm). 1 – 2. Quinqueloculina seminula (Linneaus, 1758), QM # G 466095 from OTI 53. 1. Lateral view. 2. Oral view. 3 – 5. Quinqueloculina subgranulata (Cushman, 1918), QM # G 465836 from OTI 39. 3. Lateral view. 4. Peripheral view. 5. Oral view. 6 – 7. Quinqueloculina subparkeri McCulloch, 1977, QM # G 465894 from ST / HW 10. 6. Lateral view. 7. Oral view. 8 – 10. Quinqueloculina subpolygona Parr, 1945. 8 – 9. QM # G 465985 from HIL 39, lateral view (8) and oral view (9). 10. QM # G 465986 from HIL 39, peripheral view. 11 – 15. Quinqueloculina transversestriata (Brady, 1881). 11 – 13. QM # G 465784 from ST / HW 2, lateral (11), peripheral (12) and oral (13) views. 14 – 15. QM # G 466098 from OTI 52 lateral (14) and oral (15) views. 16 – 17. Quinqueloculina cf. Q. victoriensis Collins, 1974, QM # G 465908 from T 1 – 6. 16. Lateral view. 17. Oral view. 18 – 19. Quinqueloculina sp. 1, QM # G 465823 from OTI 36. 18. Lateral view. 19. Oral view. 20 – 21. Quinqueloculina sp. 2, QM # G 466101 from WL 19. 20. Lateral view. 21. Peripheral view.