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6 results for “Megaciella”
FIGURE 5. Megaciella incrustans n in New sciophilous sponges from the Caribbean (Porifera: Demospongiae)
FIGURE 5. Megaciella incrustans n. sp., SEM images of spicules (Holotype ZMA Por. 21063). A–B. Ectosomal microspined tylote, and details of apices; C. Large and small acanthostyles; D. Detail of small acanthostyle; E. Palmate isochela.
FIGURE 5. Megaciella triangulata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 5. Megaciella triangulata n. sp. A. Holotype (lower specimen) and paratype (upper specimen). Grid marks are 1 cm. B. Choanosomal reticulation of styles. Scale bar is 500 µm. C. Large and small toxa in between choanosomal reticulation. Scale bar is 500 µm. D. Bundle of ectosomal tylotes. Scale bar is 200 µm. E. Ectosomal tylote with microspined ends and scattered small toxas and isochelas. Scale bar is 20 µm. F. Choanosomal thick and thin styles. Scale bar is 20 µm.
FIGURE 6. Megaciella triangulata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 6. Megaciella triangulata n. sp. A. Acanthostyle with scattered microscleres. Scale bar is 20 µm. B. Large toxon with microspined ends surrounded by small toxas and isochelas. Scale bar is 20 µm. C. Small category of toxon, spined all over and isochelas. Scale bar is 20 µm. D. Larger category of palmate isochela with pointed ends. Scale bar is 3 µm. E. Smaller category of isochela without pointed ends. Scale bar is 2 µm. F. Small anisochela. Scale bar is 1 µm.
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.
FIGURE 3. Megaciella lobata n in New species of sponges (Porifera, Demospongiae) from the Aleutian Islands and Gulf of Alaska
FIGURE 3. Megaciella lobata n. sp. A. Holotype. Grid marks are 1cm. B. Spicule tracts of coring styles and echinating acanthostyles. Scale bar is 500 µm. C. Ectosomal membrane with tylotes and microscleres. Scale bar is 200 µm. D. Choanosomal thick style. Scale bar is 100 µm. E. Choanosomal thin style (from lower left to upper right) with scattered acanthostyles, other spicules, and some fragments of spicules. Scale bar is 100 µm. F. Ectosomal anisotylote (from upper left to lower right). Scale bar on lower left is 100 µm. Insets at upper right corner show unequal microspined ends of tylote. Scale bars are 2 µm.
FIGURE 12. Megaciella sanctuarium. A in The Sponges of the Carmel Pinnacles Marine Protected Area
FIGURE 12. Megaciella sanctuarium. A: field photo. B–C: cross sections showing choanosomal skeleton, with ectosomal skeleton visible in B. D: Large acanthostyle and acanthostrongyle. E. small acanthostyle. F: ectosomal strongyle. G: chela. H: Toxa. All images of holotype.
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