Strongylacidon meganese (de Laubenfels, 1951 )

Calcinai, Barbara, Bavestrello, Giorgio, Bertolino, Marco, Pica, Daniela, Wagner, Daniel & Cerrano, Carlo, 2013, Sponges associated with octocorals in the Indo-Pacific, with the description of four new species, Zootaxa 3617 (1), pp. 1-61 : 14-15

publication ID

https://doi.org/ 10.11646/zootaxa.3617.1.1

publication LSID

lsid:zoobank.org:pub:4DCCD152-65DA-44A3-AB19-59811384E1E7

DOI

https://doi.org/10.5281/zenodo.6156065

persistent identifier

https://treatment.plazi.org/id/03B7DE6C-8A22-F879-FF38-C3DEFCD0C453

treatment provided by

Plazi

scientific name

Strongylacidon meganese (de Laubenfels, 1951 )
status

 

Strongylacidon meganese (de Laubenfels, 1951) View in CoL

( Fig. 7 View FIGURE 7 A–F)

Examined material. Sample Carramba 8 sp. 3: Indonesia, Ambon Island, Depan Tupa, depth not stated, 2008.

Description. The sponge encrusts a Carijoa riisei ( Fig. 7 View FIGURE 7 A) colony partially covering the polyp calyces ( Fig. 7 View FIGURE 7 B). The sample occurs on two branches of the coral, up to 14 cm long. The thickness of the sponge is about 0.5 mm, the surface is smooth, pale yellow in ethanol preserved specimens ( Fig. 7 View FIGURE 7 B).

Skeleton. No specialized ectosomal skeleton; the main skeleton is a confused arrangement with strongyles organized in tracts without clear orientation and numerous scattered microscleres ( Fig. 7 View FIGURE 7 C).

Spicules. Strongyles straight and thin ( Fig. 7 View FIGURE 7 D), 135 – (189.8 ± 29.6) – 225 x 1.2 – (2.3 ± 0.6) – 3.7 μm. Isochelae ( Fig. 7 View FIGURE 7 E), 12.5 – (14.9 ± 1.8) – 18.7 μm, frequently with a cutting on the frontal ala.

Distribution and remarks. This is a new record for Indonesia and the second record of the species since its original description from Hawai’i. Our specimen fits with the original description of de Laubenfels (1951) who reported this species as a paper-thin incrustation with strongyles of 210 – 240 x 3 µm and chelae 16 µm long. The species is the only Strongylacidon from the Indo-Pacific area, characterised by arcuate chelae (not unguiferate), by the lack of sigmas and by a single category of strongyles.

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF