FIGURE 7. Pinulasma fistulosum n. gen., n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>

FIGURE 7. Pinulasma fistulosum n. gen., n. sp., specimens and surfaces. A. Frame grab from video footage of the holotype in situ before collection. B. Frame grab from video tape of the paratype in situ before collection. C-D. Both sides of the main parts of the dried holotype (C) and wet paratype (D) after collection. E. Closer view of the external fistules showing branching and fusion. F. Wet dermal surface of the holotype with transparent spicule lattice supported above inhalant canals. G. Closer view of atrial surface showing entrances to lumena of fistules. H. Atrial surface of wet holotype fragment showing uncovered apertures of exhalant canals.