Lissodendoryx (Ectyodoryx) Lundbeck, 1909

Bertolino, Marco, Costa, Gabriele, Reboa, Anna, Bavestrello, Giorgio, Pansini, Maurizio, Betti, Federico, Bo, Marzia & Daneri, Giovanni, 2019, The sponge fauna of the Seno Magdalena and Puyuhuapi Fjord (Chile), with a description of two new species, Zootaxa 4623 (2), pp. 306-320 : 313-315

publication ID

https://doi.org/10.11646/zootaxa.4623.2.5

publication LSID

lsid:zoobank.org:pub:7A20397D-A26E-4B7D-80DF-6B78AE999F6C

DOI

https://doi.org/10.5281/zenodo.5611471

persistent identifier

https://treatment.plazi.org/id/5849EC13-FFD4-D84E-C3FA-F960935E2B53

treatment provided by

Plazi

scientific name

Lissodendoryx (Ectyodoryx) Lundbeck, 1909
status

 

Subgenus Lissodendoryx (Ectyodoryx) Lundbeck, 1909

Lissodendoryx (Ectyodoryx) patagonica ( Ridley & Dendy, 1886)

( Fig. 4 View FIGURE 4 )

Material. CILE 70, Canal Jacaf (Islote Carlos) (L) (44.484395°S 72.733093°W), Puerto Cisnes (Chile), 20 m depth, rocky walls ending on detritus bottom, 2014 GoogleMaps .

Description. The specimen observed is cushion shaped, almost globular, 6 cm in diameter. The surface is verrucose with ostia in between the warts. Oscules are roundish, elevated by thin rims. The colour in life is a very pale beige ( Fig. 4A View FIGURE 4 ). The consistence of the live specimen is soft and elastic.

Skeleton. Ectosomal skeleton of styles and tornotes scattered near the surface; choanosomal skeleton an irregular isotropic reticulation of bundles of acanthostyles, echinated by smaller acanthostyles.

Spicules. Megascleres: Styles, almost straight or faintly curved, with small spines concentrated on the head and scattered on the shaft ( Fig. 4B View FIGURE 4 ), 290 (325) 350 x 12.5 (15.4) 20 μm. Acanthostyles with well- defined heads, straight and entirely spined ( Fig. 4D View FIGURE 4 ), 90 (119) 160 x 10 (11.3) 15 μm. Straight tylotes with microspined extremities ( Fig. 4C View FIGURE 4 ), 160 (199) 225 x 2.5 (4.9) 5 μm. Microscleres: Arcuate isochelae with three, regular rounded teeth at each extremity ( Fig. 4E View FIGURE 4 ), 22.5 (30.8) 42.5 x 2.5 (3.4) 5 μm.

Ecology. This species was previously collected at 448 m depth on muddy bottoms ( Ridley & Dendy, 1886). Our specimen was found within a narrow channel between the coast and an island, in an environment characterized by rocky walls ending on debris, in presence of strong currents, at 15 m depth.

Remarks. The species was described by Ridley & Dendy (1886) off the South West coast of Patagonia. This is the second record after the original description and a new finding for the Chilean fjords. Our specimen fits with Ridley & Dendy’s original description although the maximal size of the spicules of the holotype (styles of 420 μm and tylotes of 300 μm) is slightly larger.

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Poecilosclerida

Family

Coelosphaeridae

Genus

Lissodendoryx

Loc

Lissodendoryx (Ectyodoryx) Lundbeck, 1909

Bertolino, Marco, Costa, Gabriele, Reboa, Anna, Bavestrello, Giorgio, Pansini, Maurizio, Betti, Federico, Bo, Marzia & Daneri, Giovanni 2019
2019
Loc

Lissodendoryx (Ectyodoryx) patagonica (

Ridley & Dendy 1886
1886