FIGURE 8. Pinulasma fistulosum n. gen., n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>

FIGURE 8. Pinulasma fistulosum n. gen., n. sp., cleaned skeletal framework. A. Longitudinal section of body wall framework (LM). B. Longitudinal section through body wall and fistule; arrowhead shows location of Figure A (LM). C. Longitudinal section of body wall showing septa (SEM). D. Surface view of body wall and fistules (LM). E. Closer view of part of D showing septa (LM). F. Dermal surface of body wall, with slight dermal cortex and one shallow epirhysis; growth direction upward (SEM). G. Similar view of atrial surface (SEM). H. Close view of framework spurs and beams showing ornamentation (SEM).