Truncatoflabellum formosum Cairns, 1989

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

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

publication LSID

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

persistent identifier

http://treatment.plazi.org/id/0D0001DD-A810-7F06-1219-D85FF0607285

treatment provided by

ZooKeys by Pensoft

scientific name

Truncatoflabellum formosum Cairns, 1989
status

 

Truncatoflabellum formosum Cairns, 1989  

Fig. 12I, J View Figure 12

Flabellum rubrum   . -Faustino 1927: 53 (in part: ‘Albatross’ Stns 5265 and 5658). - Yabe and Eguchi 1942a: 96-98 (in part: pl. 8, fig. 14).

Truncatoflabellum formosum   Cairns, 1989a: 69-70, pl. 35, figs J, K, pl. 36, figs A, B (in part: not ‘Albatross’ stns. 5137, 5484, 5162, and 5483). - Cairns and Keller 1993: 265, figs 10I, 11A. -Cairns 1994: 77, pl. 33, figs G-H. - Cairns and Zibrowius 1997: 169-170. - Cairns 1998: 396. - Cairns et al. 1999: 31. -Cairns 2004a: 266, 309. - Cairns 2016: 35, fig. 10B. - Kitahara and Cairns 2021: 244-246, figs 126E-H, 127.

Truncatoflabellum   sp. nov. - Cairns 1989a: 73, pl. 38, figs G-H.

Type locality.

Off Mindanao, Philippines (RV ‘Albatross’ stn. 5249: 7°06'06"N, 125°40'08"E); 42 m ( Cairns 1989a).

Type material.

The holotype is deposited at the BMNH ( Cairns 1989a).

Material examined.

SAMC_A073104 (1 specimen): Eastern margin, 18 km from Cape Vidal / 20 km off Mfolozi Brak Estuary, 28°17'23.99"S, 32°34'36.12"E; 198 m. GoogleMaps   SAMC_A073167 (11 specimen): Eastern margin, 18 km from St. Lucia Estuary / 15 km off Mfolozi Estuary, 28°31'48.00"S, 32°26'06.00"E; 160- 180 m. GoogleMaps   SAMC_A073176 (1 specimen): Eastern margin, 35 km from Durban / 26 km off Mbokodweni Estuary, 30°07'59.99"S, 31°08'59.99"E; 150 m. GoogleMaps   SAMC_A073181 (4 specimens): Eastern margin, 11 km from Port St. Johns / 10 km off Bulolo Estuary, 31°43'54.12"S, 29°32'12.11"E; 190 m. GoogleMaps   SAMC_A073212 (1 specimen): Eastern margin, 5 km from Cape Vidal / 16 km off St Lucia Estuary, 28°07'05.88"S, 32°36'35.99"E; 145 m. GoogleMaps   SAMC_A073266 (1 specimen): Southern margin, 2 km from Stilbaai / 1 km off Goukou Estuary, 34°22'55.26"S, 21°25'25.49"E; 88 m. GoogleMaps   SAMC_A090100 (3 specimens): Eastern margin, 34 km from Shaka’s Rock / off Tongati Estuary, 29°45'59.99"S, 31°25'59.99"E; 110- 130 m. GoogleMaps   SAM_H784 (48 specimens): Eastern margin, 19 km from Shaka’s Rock / 3 km off Mdloti Estuary, 29°38'59.99"S, 31°07'59.99"E; 71- 73 m. GoogleMaps   SAM_H835 (1 specimen): Southern margin, 6 km from Kenton On Sea / 5 km off Boknes Estuary, 33°43'07.59"S, 26°37'37.95"E; 90 m. GoogleMaps   SAM_H1241 (6 specimens): Eastern margin, 2 km from Kei Mouth / 27 km off Groot Berg Estuary, 32°40'33.99"S, 28°22'50.99"E; 66 m. GoogleMaps   SAM_H1389 (1 specimen): Eastern margin, 19 km from Shaka’s Rock / 3 km off Mdloti Estuary, 29°38'59.99"S, 31°07'59.99"E; 183 m. GoogleMaps   SAM_H1399 (3 specimens): Eastern margin, 39 km from Mtunzini / 8 km from Zinkwasi Estuary, 29°12'59.99"S, 31°30'00.00"E; 73 m. GoogleMaps   SAM_H1437 (45 specimens): Eastern margin, 2 km from Durban / 8 km off Umgeni Estuary, 29°52'00.00"S, 31°00'00.00"E; 99 m. GoogleMaps   SAM_H1442 (1 specimen): Eastern margin, 6 km from Durban / 9 km from Umgeni Estuary, 29°52'59.99"S, 31°03'04.99"E; 86 m. GoogleMaps   SAM_H1452 (1 specimen): Southern margin, 113 km from Gonubie / 112 km off Gqunube Estuary, 33°43'00.00"S, 28°46'59.99"E; 90 m. GoogleMaps   SAM_H1456 (1 specimen): Eastern margin, 9 km from Shaka’s Rock / 2 km off Tongati Estuary, 29°34'00.00"S, 31°10'59.99"E; 66 m. GoogleMaps   SAM_H1698 (1 specimen): Eastern margin, 18 km from Cape Vidal / 27 km off Mfolozi Estuary, 28°16'18.00"S, 32°38'48.00"E; 670 m. GoogleMaps   SAM_H3096 (10 specimens): Eastern margin, 2 km from Durban / 8 km off Umgeni Estuary, 29°51'59.99"S, 31°00'00.00"E; 101 m. GoogleMaps   SAM_H3097 (1 specimen): Southern margin, 14 km from Cape Padrone / 26 km from Boknes Estuary, 33°45'59.99"S, 26°18'59.99"E; 115 m. GoogleMaps   SAM_H3846 (1 specimen): Eastern margin, 34 km from Shaka’s Rock / off Tongati Estuary, 29°45'59.99"S, 31°25'59.99"E; 110- 130 m. GoogleMaps   USNM 91758 (1 specimen): Eastern margin, 5 km from Cape Vidal / 16 km off St Lucia Estuary, 28°07'05.88"S, 32°36'35.99"E; 145 m. GoogleMaps  

Description.

Corallum (anthocyathus) medium to large, compressed conical, with a small open base. Calice elliptical (GCD:LCD = 1.2-2.5), with smooth and slightly arched calicular margin. Basal scar 4.0 × 3.0 mm in diameter, with 12 complete septa originating from scar. Largest specimen examined (SAM_H3096) 25.0 × 10.0 mm in CD, and 10 mm in H. Theca glistening, may be encrusted or smooth, with longitudinal striae, and transverse corrugations. Thecal faces carinate, with angle of 45°. Anthocyathi have one to three pairs of thecal spines (SAMC_A090100). Thecal spines cylindrical in profile. Corallum white, with theca sometimes reddish brown.

Septa arranged in three size classes according to the formula: 20:20:38-40 (≤ 80 septa). Primary septa arched and concave at calicular margin, but have vertical and slightly sinuous axial margin that extend toward columella. Secondary septa ½ the width of primaries, being finely dentate near calicular margin and bearing moderately sinuous axial margin. Tertiary rudimentary. All septa non-exsert, but primaries may be slightly exsert in juvenile specimens. Septal faces bear blunt granules obliquely aligned in rows along septal margin. Fossa moderately deep with a rudimentary columella formed by lower axial margin of primary septa.

Distribution.

Regional: Southern to eastern margin of South Africa, off Stilbaai extending towards Cape Vidal; 55-670 m. Elsewhere: Mozambique ( Cairns and Keller 1993); Australia (Cairns 2004a); Philippines ( Cairns 1989a); Indonesia ( Cairns and Zibrowius 1997); New Caledonia ( Kitahara and Cairns 2021); Japan ( Cairns 1989a, 1999); 42-993 m.

Remarks.

Truncatoflabellum formosum   superficially resembles T. multispinosum   Cairns in Cairns and Keller 1993 in having a medium to large corallum, numerous septa, not rounded thecal margin, and having thecal spines. T. formosum   can be differentiated in having less (≤ 2) carinate thecal spines. The species was first reported in South African territory by Cairns and Keller (1993), off the eastern margin of South Africa, and the material examined here extends regional distribution towards Still Bay (off the southern margin).

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Flabellidae

Genus

Truncatoflabellum

Loc

Truncatoflabellum formosum Cairns, 1989

Filander, Zoleka N., Kitahara, Marcelo V., Cairns, Stephen D., Sink, Kerry J. & Lombard, Amanda T. 2021
2021
Loc

Truncatoflabellum formosum

Cairns 1989
1989
Loc

Truncatoflabellum

Cairns 1989
1989