FIGURE 4. Megaciella lobata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska

FIGURE 4. Megaciella lobata n. sp. A. Acanthostyle among thick styles and with thick category of sigma on top. Note weak spination of blunt end of thick style and isochela on top of it near upper middle of photo. Scale bar is 20 µm. B. Close up of middle part of A. Toxon of smaller, thicker category and isochela on surface of acanthostyle. Scale bar is 10 µm. C. Long, thin toxon from upper left corner to lower right. Scale bar is 20 µm. D. Isochela. Scale bar is 2 µm.