Fissurina sp.

Toefy, R., Gibbons, M. J. & McMillan, I. K., 2005, The foraminifera associated with the alga Gelidium pristoides, South Africa, African Invertebrates 46, pp. 1-26 : 10

Fissurina sp. “A”

Figs 4B, 4C

Material examined: A27405 , A27406 .

Distribution: Around South Africa from Buffels Bay to Port Elizabeth.

Remarks: Species differs from F. marginata due to the presence of a double keel and a distinctive short neck. F. orbignyana Seguenza described by Hayward et al. (1999) has a similar shape to Fissurina sp. “A”; however, it differs in that the neck region is less distinctive and there is a spine on the aboral end. F. claricurta McCulloch also has a double keel; however, it does not have a distinct neck region and the secondary keel is not as distinctive as in Fissurina sp. “A”. Lagenosolenia bradii (Silvestri) ( Albani et al. 2001) is similar to this species in that it has a double keel and a distinctive neck region; however it differs from Fissurina sp. “A” in that it has an aboral spine. L. bradii (Silvestri) is however, the most similar to this species than any other Fissurina species examined.

Figures

Fig. 4 A–L: (A) Fissurina marginata (Montagu, 1803); (B, C) Fissurina sp. “A”; (D) Guttulina irregularis (d’Orbigny, 1846); (E) Glandulina sp. “A”; (F) Bolivina “fossa” McMillan, 1987 m.s.; (G, H) Bolivina pseudoplicata Heron-Allen & Earland, 1930; (I) Bolivina sp. “A”; (J) Brizalina pseudopunctata (Höglund, 1947); (K) Brizalina “rocklandsensis” McMillan, 1987 m.s.; (L) Bulimina elongata d’Orbigny, 1846.