Eurypon lacazei ( Topsent, 1891 )

Pestana, Rosa, Ribeiro, Cláudia, Boury-Esnault, Nicole & Biscoito, Manuel, 2018, Systematic account of new Porifera (Demospongiae) records from the oceanic Island of Madeira (NE Atlantic), Zootaxa 4402 (2), pp. 395-400 : 397

Eurypon lacazei ( Topsent, 1891) ( Figure 2 )

Material examined. MMF 35057 / Location: Ponta da Cruz (PC), Madeira island / 6.5 m depth / Date: 4 jul 2001 / Collector: Rosa Pestana.

Remarks. MMF 3507 has straight and very spiny acanthostyles with irregular bases (78.9‒118.0‒181.5 x 6.6‒8.2‒10.5 µm) and all have a head, occasionally only slightly evident. Subtylostyles (1542.0‒1781.2‒1946.0 x 11.8‒13.8‒15.8 µm) and tornote (343‒343‒343 x 1.7‒1.7‒1.7 µm) are rare. The specimen collected had accumulation of detritus over the body, and some subtylostyles showed specks in their heads, which we were unsure whether they were spines or detritus.

Figures

FIGURE 2. Spicules and fibres: 1. Aplysilla sulfurea, spongin fibre; 2. Cliona celata, a: curved tylostyles, b: straight tylostyle, c: tylostyles with different types of heads; 3. Eurypon lacazei, a: tornote, b: acanthostyle, c: subtylostyle; 4. Clathria (Clathria) coralloides, a: straight and thin subtylostyle, b: principal style, c: accessory style, d: toxa, e: palmate isochela; 5. Mycale (Carmia) macilenta, a: tylostyle, b: toxa, c: large sigma, d: large palmate anisochela; 6. Tedania (Tedania) anhelans, a: curved style, b: straight tylote,c: onychaete.