Truncatoflabellum sp.

Filander, Zoleka N., Kitahara, Marcelo V., Cairns, Stephen D., Sink, Kerry J. & Lombard, Amanda T., 2021, Azooxanthellate Scleractinia (Cnidaria, Anthozoa) from South Africa, ZooKeys 1066, pp. 1-198 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.1066.69697

publication LSID

lsid:zoobank.org:pub:133CE040-A5AF-44F1-BC9A-558C2F06A8AA

persistent identifier

https://treatment.plazi.org/id/AB813281-B8A9-6F38-B60E-01A65E973CC5

treatment provided by

ZooKeys by Pensoft

scientific name

Truncatoflabellum sp.
status

 

Truncatoflabellum sp.

Fig. 13E, F View Figure 13

Material examined.

SAMC_A073161 (1 specimen): Eastern margin, 25 km from Port St. Johns/ 16 km off Cwili Estuary, 31°49'59.99"S, 29°40'00.00"E; 140-145 m.

Description.

Corallum small, with thecal edges diverging at 30°. Calice flared and elliptical (GCD:LCD = 1.7), with a slightly serrated calicular margin. Specimen examined 12.7 × 7.6 mm in CD, 1.3 mm in PD, and 14.2 mm in H. Theca smooth. Thecal faces diverge in an angle of ~ 60°, and thecal edge of ~ 23°. Specimen has anthocyathus still attached to anthocaulus, but a fracture line indicates that they were about to transversely divide. Corallum white.

Septa thick and hexamerally arranged in four cycles, the last being incomplete, according to the formula: S1-3 > S4 (45 septa). S1-3 axial edges straight, but become slightly sinuous deeper in fossa. S4 rudimentary and bearing sinuous axial margin. Septal faces smooth, occasionally with sparsely arranged granules. Fossa of moderate depth, with a rudimentary columella formed by the fusion of the S1-3 lower axial margins.

Distribution.

Regional: Eastern margin of South Africa, off Port St. Johns; 140-145 m.

Remarks.

The examined specimen is unique in its calice being flared, lateral margin diverging at an angle of 23°, and having distinctly thick septa. More specimens are needed to confirm the possibility of it being an undescribed species.

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Flabellidae