. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOID RESPIRATORY PODIA 325 A A r. B FIGURE 1. Respiratory podium of Encidaris tritniloidcs; (A.) edge view; (B.) side view; (C.) cross section; (a.) marginal tube; (b.) test; (c.) thin, rippled area; (d.) distal tube; (e.) strands of connective tissue. The actual sizes of podia and ampullae vary considerably with the size of the animal, location of podia on animal, and state of contraction of podium. RESULTS Order Echinothuroida Two species in this order were examined: Sperosonia giganteum and Plior- iiiosoma plascentei.


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ECHINOID RESPIRATORY PODIA 325 A A r. B FIGURE 1. Respiratory podium of Encidaris tritniloidcs; (A.) edge view; (B.) side view; (C.) cross section; (a.) marginal tube; (b.) test; (c.) thin, rippled area; (d.) distal tube; (e.) strands of connective tissue. The actual sizes of podia and ampullae vary considerably with the size of the animal, location of podia on animal, and state of contraction of podium. RESULTS Order Echinothuroida Two species in this order were examined: Sperosonia giganteum and Plior- iiiosoma plascentei. There are two pores in the hody wall for each podium, and both podia and ampullae are hollow. Podia on the oral surface, which terminate in suckers, fit the classical description of tube feet (Bather, 1900; Chadwick, 1900; Ludwig. 1904; MacBride, 1909, Cuenot, 1948; Hyman, 1955). Podia on the aboral surface, while shaped like tube feet, terminate bluntly without a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology