. Bulletin - United States National Museum. Science. Fig. 61.—DUQKAM ILLUSTRATING THE HOMOLOGOUS ARMS IN TEN, TWENri", AND THIRTY ARMED COMATCUDS; (o) THE POST- RADIAL SERIES OF A TEN-ARMED COMATULID; (6) THE POST-RADUL SERIES OF A TWENTY-ARMED COMATULID; THE CORRESPONDING TO THOSE SHOWN IN THE PRECEDING FIGURE, NOW INTERNAL, ARE INDICATED BY A HEA^'Y OUTUNE; (C) THE POST^RADLAL SERIES OF A THIRTY-ARMED COMATWUD; THE OSSICLES CORRESPONDDJO TO THOSE IN FIGURE 0 ARE SHOWN BORDERED WITH HEAVY LINES. Infrabasals (IBB).—Small plates forming a circlet below or within the basals and al
. Bulletin - United States National Museum. Science. Fig. 61.—DUQKAM ILLUSTRATING THE HOMOLOGOUS ARMS IN TEN, TWENri", AND THIRTY ARMED COMATCUDS; (o) THE POST- RADIAL SERIES OF A TEN-ARMED COMATULID; (6) THE POST-RADUL SERIES OF A TWENTY-ARMED COMATULID; THE CORRESPONDING TO THOSE SHOWN IN THE PRECEDING FIGURE, NOW INTERNAL, ARE INDICATED BY A HEA^'Y OUTUNE; (C) THE POST^RADLAL SERIES OF A THIRTY-ARMED COMATWUD; THE OSSICLES CORRESPONDDJO TO THOSE IN FIGURE 0 ARE SHOWN BORDERED WITH HEAVY LINES. Infrabasals (IBB).—Small plates forming a circlet below or within the basals and alternating in position with them; in the comatulids they arc not always devel- oped, and if present fuse with the centrodorsal in early life. The infrabasals are the equivalent of the oculars in the echinoids (see figs. 565-572, pi. 7, and pp. 313-316). Infrarwdal.—The columnal immediately below a nodal. Infraradials.—See Suhradials. Interambulacral.—Situated %vithin the areas delimited by the ambulacral furrows on the 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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