. Bulletin - United States National Museum. Science. REVISION OF PALEOZOIC STELLEROIDEA. 223 Genus BOHEMURA Jaekel. Text fig. 21. Bohemura Jaekel, Zeits. geol. GeselL, vol. 55, 1903, Protokol, p. ]8 (111), fig. 6. This genus, like tlie foregoing, is not defined in the regulation way. Jaekel's fine drawing shows that it is closely related to EopMura, differing mainly in that the rays do not end hluntly, but have slowly tapermg whip-like terminations. These ends are of coui-se ontoge- netically young and reveal the progressive ray development. Here. FiQ. 20.—Oral skeleton of Eophiura bohemica, a
. Bulletin - United States National Museum. Science. REVISION OF PALEOZOIC STELLEROIDEA. 223 Genus BOHEMURA Jaekel. Text fig. 21. Bohemura Jaekel, Zeits. geol. GeselL, vol. 55, 1903, Protokol, p. ]8 (111), fig. 6. This genus, like tlie foregoing, is not defined in the regulation way. Jaekel's fine drawing shows that it is closely related to EopMura, differing mainly in that the rays do not end hluntly, but have slowly tapermg whip-like terminations. These ends are of coui-se ontoge- netically young and reveal the progressive ray development. Here. FiQ. 20.—Oral skeleton of Eophiura bohemica, after Jaekel. a, ambitlacralia; ad, adambu- lacralia; Ma, madreporite among the scale plates. the rays are made up of overlapping and alternating adambulacrals that distally have no ambulacral grooves. Gradually an ambulacral groove is developed and it becomes rapidly wider as one examines the rays more and more proximally, and the adambulacrals turn over and flatten out, finally making the great open ambulacral furrows. The illustration here reproduced, figure 21 on page 224, will show the generic characters as drawn by Jaekel. GenoJiolotype and only species.—B. jalini Jaekel. Ordovicic (D4) at Zahorzan, Bohemia. Genus PAL^^URA Jaekel. Text fig. 22. PaZajwra Jaekel, Zeits. geol. Gesell., ,1903,Protokol,(109)-17(110),fig. 5. Genoholotype.—Palxura, species not named. No species is again mentioned, nor is it stated that the generic name is new. To give the name standing, the form figured is here named P. neglecta, new genus, new species. It occurs in the Ordovicic (DJ of Bohemia; the exact locality is not given, but may be Osek. 50601°—Bull. 88—15 15. 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.
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