Tridentisis candelabrum France and Watling, 2024

France, Scott C. & Watling, Les, 2024, Toward a revision of the bamboo corals: Part 6, Illuminating a new candelabrum genus (Octocorallia: Keratoisididae), Zootaxa 5497 (4), pp. 505-519 : 507

Tridentisis candelabrum France and Watling , sp. nov.

urn:lsid:zoobank.org:act:D0BC20BC-6377-4A2E-B3F4-906FA285FF3C

( Figures 1 to 7)

Keratoisidinae BAL 208-1: Brugler and France 2008

Keratoisidinae Undescribed A BAL 208-1, BAL205-1: van der Ham et al. 2009:186 (in tbl.), 189 (tbl. 2), 191 (fig. 5).

Keratoisidinae sp. I 4: van der Ham et al. 2009: 188 (fig. 3).

BAL2081 Undescribed Keratoisidinae : Pante et al. 2012: Fig. 2 , fig. 3, suppl table S1

Isidella sp.1 Heestand Saucier et al. 2021

“Clade I4” Watling et al. 2022

Type series.

Holotype.

Balanus Seamount , New England Seamount chain, Atlantic Ocean; specimen BAL205-1; collected 01 Sept 2005; 39°24.91’N, 65°24.66’W; 1889 m; YPM IZ107121 ; GenBank acc. # PP838399 (mtMutS), PP820651 (igr4).

Figures

FIGURE 1. Tridentisis candelabrum, holotype, BAL205-1, YPM IZ107121, A, collected colony section; and sclerites from, B, the body wall (1, generally, 2, intertentacular sclerites), C, tentacles, and D, the pharynx.

FIGURE 2. Tridentisis candelabrum, holotype, BAL205-1, YPM IZ107121, A, whole polyp, tissue cleared with clove oil and imaged with partially crossed polarizing filters. B, scanning electron microscope (SEM) image of upper part of polyp. C, cleared-tissue image of tentacle showing arrangement of sclerites along tentacle rachis and in pinnules. D, light microscope image of thick section cut through the body wall and one septum (s); the outer thick matrix (*) is seen on the left side of the image left of the body wall. E, SEM image of cut through the layered matrix on the outside of the body wall of the polyp; layering appears to be composed of collagen fibers.