. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 256 C. J. BtNTIS ET Figure 2. Conical defense structures. (A. B) MuHii/ioni cl \iinli-ri. Cluster ot cones am.] a large Military Oni Sample was collected in Ma\ I')'IS .il Johnston Atoll, all-dried, and sputter coated with gold-paladium. (C) I'm ilhi/inrit ru/i'Ht; Skeletal spine with UNO elongated, nonpei loiaied cones protruding from corallum surface near base of spike. Cone like stiiicliires at lop of spike were ohsei\ed regularlx and cannot he continued as dclcnse structures from this preparation. ||)| /' ,-\,l<n
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 256 C. J. BtNTIS ET Figure 2. Conical defense structures. (A. B) MuHii/ioni cl \iinli-ri. Cluster ot cones am.] a large Military Oni Sample was collected in Ma\ I')'IS .il Johnston Atoll, all-dried, and sputter coated with gold-paladium. (C) I'm ilhi/inrit ru/i'Ht; Skeletal spine with UNO elongated, nonpei loiaied cones protruding from corallum surface near base of spike. Cone like stiiicliires at lop of spike were ohsei\ed regularlx and cannot he continued as dclcnse structures from this preparation. ||)| /' ,-\,l<ni\i. lop view ol cone on wall of superficial corallile perforated by endolnhic fungal Inpha. Bore hole clearlx \ isiblc at apex ol cone Note neighboring nonperforated cone (below riglni .Specimen treated with .v^s', sodium hypochloritc (Cloroxl to remove organic matter, then sputter coaled with ^old |i, Scanning election miciographs: scale bars = 10 jnm. tributed (in tlic surface nt the coiallum: thes occunxxl either singly (Figs. I A, B. D; 2B) or in clusters of several neigh- boring cones (Figs. 1C; 2A. C. D). Cones observed in this study were similar in both shape and size (Table 1) to those described for P. lohata (</. 7). Each cone was penetrated by an axially positioned, tinbranched luiiL'.il lixpha (Fig. IA- D). As the polyp responded by producing the cone, the hypha continued to penetrate along the axis of the defense structure (Fig. 1 ) The pohp combated the continued pen etration of the hypha by accreting subsequent layers of repair aragonite. In superficial regions of the colonies ex- amined, where live coral tissue had been actively accreting skeletal carbonate immediately prior to collection, nearly every cone remained sealed (Fig. 2C). Only four of the cones observed in superlicial corallites were perforated at their vertices (Fig. 21)). marking a possible successful breach of a corallite during the residence of its polyp. At present, the effect of th
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
