Quinqueloculina

Mamo, Briony L., 2016, Benthic Foraminifera from the Capricorn Group, Great Barrier Reef, Australia, Zootaxa 4215 (1), pp. 1-123 : 51

Quinqueloculina sp. 5 ( Fig. 11 :6, 7)

Description. Quinqueloculine, slightly longer than wide, somewhat robust test. Chambers are slightly inflated and test walls are rough with some agglutinated grains. Dentition consists of a long, Y-shaped tooth within a broad Lachlanella -shaped aperture with a thin lip.

Remarks. This taxon remains unassigned due to its lack of abundance. It resembles CG specimens of Quinqueloculina sp. cf. Q. agglutinans but has a less heavily agglutinated test, more inflated chambers and a shorter, Y-shaped tooth. There is also a resemblance to Q. subpolygona in shape, aperture and wall texture, but has dentition where Q. subpolygona has none. The peripheral chambers are slightly inflated and do not bear peripheral carinae and the test wall has some agglutinated grains attached to the already roughened exterior.

Distribution within study area. Quinqueloculina sp. 5 was only found at site 2 along the ST/HW transect on Heron Reef flat.

Figures

FIGURE 11. (Unless otherwise specified all scale bars = 100 µm). 1 – 2. Quinqueloculina sp. 3, QM # G 465918 from WL 1. 1. Lateral view. 2. Oral view. 3 – 5. Quinqueloculina sp. 4, QM # G 465831 from OTI 39. 3. Lateral view. 4. Oral view. 5. Peripheral view. 6 – 7. Quinqueloculina sp. 5, QM # G 465782 from ST / HW 2. 6. Lateral view, scale bar = 200 µm. 7. Oral view, scale bar = 200 µm. 8 – 9. Quinqueloculina sp. 6, QM # G 465910 from T 3 – 2. 8. Lateral view. 9. Peripheral view. 10 – 11. Quinqueloculina sp. 7, QM # G 465951 from S 8. 10. Lateral view, scale bar = 500 µm. 11. Close-up lateral view, scale bar = 50 µm. 12 – 15. Miliolinella circularis (Bornemann, 1855). 12 – 13. QM # G 465898 from ST / HW 10, lateral (12) and oral (13) views. 14 – 15. QM # G 465980 from OTI 54, lateral (14) and oral (15) views. 16 – 17. Miliolinella sp. 1, QM # G 465944 from OTI 20. 16. Lateral view. 17. Oral view. 18 – 20. Miliolinella sp. 2, QM # G 465901 from ST / HW 10. 18. Lateral view. 19. Lateral view. 20. Oral view.