Chelonaplysilla violacea ( Von Lendenfeld, 1883 )

Sim-Smith, Carina, Hickman, Cleveland & Kelly, Michelle, 2021, New shallow-water sponges (Porifera) from the Galápagos Islands, Zootaxa 5012 (1), pp. 1-71 : 8-9

publication ID

https://doi.org/10.11646/zootaxa.5012.1.1

publication LSID

lsid:zoobank.org:pub:56C6852D-AAE0-4B6B-AB57-919CD62DAEC1

persistent identifier

https://treatment.plazi.org/id/D3075148-FFDC-FFF3-FF67-8FBDB34EC9CE

treatment provided by

Plazi

scientific name

Chelonaplysilla violacea ( Von Lendenfeld, 1883 )
status

 

Chelonaplysilla violacea ( Von Lendenfeld, 1883)

( Fig. 3 View FIGURE 3 )

Aplysilla violacea Von Lendenfeld, 1883: 237–269 .

Aplysilla violacea Von Lendenfeld 1889: 704–706 , pl. 46, fig. 13–15.— Bergquist 1967: 162; Bergquist et al. 1971: 100, 103– 104.

Chelonalpysilla violacea Bergquist 1996: 21–22 , pl. 3e, 4e, 7c. — Kelly, 2018: 92; Kelly & Colin, 2016; 59; Lizarazo Rodríguez et al. 2020: 109–110, fig. 19; pl. 2, fig. 6.

Material examined. MCCDRS9431, Beagle Rocks, 0.601° S, 90.633° W, 9 m, 20 Jan 2003; MCCDRS9432, Beagle Rocks, 0.601° S, 90.633° W, 11 m, Jan 2003; MCCDRS9433, Beagle Rocks, 0.601° S, 90.633° W, 8 m, 5 Aug 2003.

Type locality. Port Phillip Heads , Australia .

Habitat and distribution. Australia, New Zealand, Fiji, Solomon Islands, American Samoa, Northern Papua New Guinea, Hawai’i, Palau, Guam, Colombian Pacific, Galápagos Islands (Beagle Rocks). Found growing in shallow waters on hard coral and rock substrates.

Description. Thinly encrusting sponge, up to 10 mm thick, occasionally with lobes, covered in low conules ( Fig. 3A, B View FIGURE 3 ). Fibres often protrude through the surface of the sponge at the apex of the conules. Conspicuous oscules are scattered over the surface of the sponge, flush or surrounded by a slightly raised, membranous rim. Close examination of the surface reveals a characteristic reticulation of embedded sand grains and broken spicules, resulting in the appearance of a whitish surface lace. Texture is soft, compressible. Colour in life is dark purple with a whitish surface sheen.

Skeleton. The surface of the sponge contains a layer of sand and foreign broken spicules ( Fig. 3C View FIGURE 3 ). Large pockets of sand grains are also present within the choanosome. Fibres smooth, erect and sparse, arising from a spongin basal plate, often protruding visibly through the surface. The fibres are strongly concentrically laminated with a central diffuse pith, and free of detritus ( Fig. 3D View FIGURE 3 ); fibres are thin, diameter varying from 36–100 µm.

Remarks. Chelonaplysilla violacea is widely distributed throughout the Pacific Ocean from Papua New Guinea in the west to Hawai’i, the Galápagos Islands and the Colombian Pacific in the east. Specimens from the Galápagos Islands conform to the morphological characteristics of this species.

Order Dictyoceratida Minchin

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Dendroceratida

Family

Darwinellidae

Genus

Chelonaplysilla

Loc

Chelonaplysilla violacea ( Von Lendenfeld, 1883 )

Sim-Smith, Carina, Hickman, Cleveland & Kelly, Michelle 2021
2021
Loc

Chelonalpysilla violacea

Lizarazo Rodriguez, N. & Zea, S. & Chasqui Velasco, L. & Rincon Diaz, N. 2020: 109
Kelly, M. 2018: 92
Bergquist, P. R. 1996: 22
1996
Loc

Aplysilla violacea

Bergquist, P. R. & Morton, J. E. & Tizard, C. A. 1971: 100
Bergquist, P. R. 1967: 162
Von Lendenfeld, R. 1889: 706
1889
Loc

Aplysilla violacea

Von Lendenfeld, R. 1883: 269
1883