Description. Shape (Figs 7 A – C). Fan to cup-shaped, with irregular margins, on narrow peduncle, 3 cm long by 2 cm diameter. Specimens are up to 10 cm long by 11 cm in maximum diameter with walls 2 – 10 mm thick, but becoming thicker towards the peduncle. Colour. Orange live. Beige in alcohol. Consistency. Rough to touch, spiculose, flexible and compressible. Oscula. External face with minute pores less than 1 mm; inner face with larger pores up to 3 mm diameter regularly distributed. Surface. External face covered irregularly with conulose and hispid-thin projections up to 1 cm long, single or joined laterally, forming meandroid valleys up to 1 cm high and giving surface a clathrous appearance; membranous transparent skin pierced by minute pores. Inner face, irregularly conulose and with fewer or without long projections. Both inner and outer surface marked by choanosomal longitudinal fibres, especially near the margins. Surface at peduncle area is free of projections; micro-hispid. Skeleton (Fig. 7 D). Ectosomal skeleton not specialised. Choanosomal skeleton vaguely plumose to halichondroid; compressed in cross section in some regions of the specimen; without spongin fibres but thick multispicular tracts, up to 1 mm in diameter, loosely packed with interwoven spicules and ‘ plumo-echinated’ with single spicules, ascending toward surface, dividing, anastomosing and forming an irregular reticulation. Secondary tracts vague or ill-defined, diverging from main axes, multispicular and slightly plumose. Specimen Locality Strongyles Styles Toxiform oxeas RMNH POR. Bali 1065.7 – 2001.8 µm 783.3 – 1255.4 µm 2900 (1586.6 ± 254.6) (1068.2 ± 114.5) x 7.1 – 14.4 µm (10.8 ± 2) x 7.1 – 16.8 µm (10.8 ± 2.5) RMNH POR. Bali 472.2 – 1348.8 µm 596 – 1046.8 µm 226.1 – 284.6 µm 3053 (1095.1 ± 194.5) (837.3 ± 111.9) (249.8 ± 30.8) [3] x 8 – 16.8 µm (13 ± 2.5) x 8.9 – 23.5 µm (14.5 ± 3.5) x 5.4 – 6.5 µm (5.8 ± 0.6) [3] ZMA Por. Maluku, 837.4 – 1810.6 µm 619.6 – 1233.5 µm 211.9 – 377.1 µm 10822 Indonesia (1326.8 ± 291.6) (943.7 ± 135.5) (306.6 ± 46.5) [17] x 8 – 24.9 µm (15.6 ± 4.1) x 7.6 – 23.2 µm (15 ± 4.4) x 2.6 – 6 µm (4.5 ± 1) [17] ZMA Por. Sunda Islands 965 – 1839 µm (1444.9 ± 255.5) 946.3 – 1272.4 µm 12332 (1116.5 ± 98.1) x 8.9 – 20.9 µm (16.4 ± 2.9) x 9.1 – 23.3 µm (17.1 ± 3.2) RMNH POR. North Sulawesi 1072.3 – 1807.3 µm (1504.1) 844 – 1198.7 µm (991.4) 224.8 – 371.3 µm (272.4) 6561 x 6.3 – 25.4 (14.6) [10] x 4 – 20.4 µm (12.3) [18] x 3.5 – 7.0 (5) [6] RMNH North Sulawesi 1053.2 – 1169.1 (1110.6) 802 – 1097 µm (978.3) 284.8 – 362 µm (322.8) POR. 6628 x 3.6 – 7.3 µm (6) [3] x 8.3 – 25.3 µm (16.8) x 2.9 – 7 µm (5.5) [4] Philippines * 1700 – 2000 µm 1200 – 1550 µm x 16 – 30 µm 200 – 600 µm x 4 – 15 µm (holotype) * Data from Lévi (1961) Spicules (Fig. 7 E, Table 6). Strongyles, sinuous, or irregularly bent; often in horseshoe shape, 1065.7 – 2001.8 µmx 7.1 – 14.4 µm. Styles, thin, long, slightly curved, 596 – 1272 µm x 7.1 – 23.5 µm. Toxiform oxeas, rare, or absent (not found in all specimens), 211.9 – 377.1 µm.
Sumber: Sponges of the family Axinellidae (Porifera: Demospongiae) in Indonesia