FIGURE 4. Farrea aleutiana n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>

FIGURE 4. Farrea aleutiana n. sp., spicules (all SEM). A. Surface pentactin, whole, with enlarged tangential and proximal ray ends. B. Pileate clavule, whole, side and end view of the upper end. C. Uncinate, whole and enlarged middle segment. D. Oxyhexaster. E. Hemioxyhexaster. F. Oxyhexactin. G. Discohexaster. H. Hemidiscohexaster. I. Discohexactin. J. Magnified side and end views of terminal ray ends of disc-tipped microscleres.