Litophyton darleyensis, Van, 2020

Van Ofwegen, Leen P., 2020, The genus Litophyton Forskål, 1775 (Octocorallia: Alcyonacea: Nephtheidae) from Australia, Zootaxa 4764 (1), pp. 1-131 : 100

publication ID

https://doi.org/ 10.11646/zootaxa.4764.1.1

publication LSID

urn:lsid:zoobank.org:pub:53C5289A-156C-4AF1-B84A-73099A332C05

DOI

https://doi.org/10.5281/zenodo.3803574

persistent identifier

https://treatment.plazi.org/id/03BCB717-2342-FFB3-FF35-85F4FB6AFCCE

treatment provided by

Carolina

scientific name

Litophyton darleyensis
status

sp. nov.

Litophyton darleyensis View in CoL sp. nov.

( Figs. 70g View FIGURE 70 , 80c View FIGURE 80 , 83-84 View FIGURE 83 View FIGURE 84 )

Material examined. Holotype NTM C1155 , Queensland, Darley reef, December 1979, coll. P. Alderslade ; paratype NTM C1154, same data as holotype.

Description. The holotype is 10.5 cm high and 9 cm wide, the stalk is 4 cm long ( Fig. 80c View FIGURE 80 ). The polyps are up to 0.7 mm wide and 0.9 mm high, grouped in conical catkins.

Polyps. With a relatively good arrangement of sclerites in eight points ( Fig. 70g View FIGURE 70 ).Abaxial and lateral point sclerites are spindles; abaxially up to 0.35 mm long, with simple tubercles ( Fig. 83a View FIGURE 83 ); laterally up to 0.20 mm long. Adaxially there are small, curved scales, up to 0.10 mm long, similar to those of the tentacles ( Fig. 83b View FIGURE 83 ). The polyp stalk has straight rods, up to 0.08 mm long ( Fig. 83c View FIGURE 83 ). Supporting bundle not projecting or slightly so, composed of spindles up to 1.5 mm long, with simple tubercles ( Fig. 83d View FIGURE 83 ).

Surface layer top stalk. Spindles up to 1 mm long, with simple and complex tubercles ( Fig. 83 View FIGURE 83 e-f).

Surface layer base stalk. Capstans, a few derivatives of capstans, and spindles, all with simple and complex tubercles ( Fig. 83h View FIGURE 83 , 84a View FIGURE 84 ). Capstans 0.05-0.15 mm long; spindles up to about 0.50 mm long.

Interior stalk. Spindles, up to 1.5 mm long, with pointed ends and simple and complex tubercles ( Fig. 84d View FIGURE 84 ); many with one or more side branches ( Fig. 83g View FIGURE 83 , 84 View FIGURE 84 b-c).

Etymology. Named after the type locality.

Distribution. Great Barrier Reef: Darley reef.

Remarks. The species is similar to L. folium sp. nov. (see below) but has longer internal stalk spindles with coarser tubercles, less developed point sclerites and very few spinose derivatives of capstans.

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Alcyonacea

Family

Nephtheidae

Genus

Litophyton

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