FIGURE 1 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species

FIGURE 1. Characella pachastrelloides (Carter, 1876). A. ZMBN 80248 collected in Norway. Scale: 1 cm; B. ZMBN 25629 from the Ibero-Moroccan Gulf (Arnesen, 1932). Scale: 1 cm; C. ZMAPOR 20375 from Mingulay Reef, Scotland. Scale: 3 cm; D. Thick section showing the skeletal architecture of cortex and choanosome. Scale: 1 mm [ZMBN 80248]; E. Cross-section of main atrium. Notice the tough contractile membrane surrounding the oscule. Scale: 1 cm [ZMAPOR 20375]; F. Close-up of thick section D showing the arrangement of microxeas, oxeas and triaenes in the cortex. Scale: 500 µm [ZMBN 80248]; G. Thick section of the membrane surrounding the oscule. scc: sub-cortical canals. Scale: 1 mm [ZMAPOR 20375]; H. Crosssection showing the arrangement of microxeas, oxeas and triaenes in the cortex. Scale: 500 µm [ZMBN 25629]; I. Anatriaenes in situ. Scale: 200 µm [ZMBN 85225].