. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 1 Fig. 1, 2. Pentremites conoideus Hall. A crushed specimen from the Madison limestone at Old Baldy, Mont. 1. crum. X 10. The specimen. X 2. Detail of ambula- ambulacral area. Side-plates narrow, with minute pits for the inser- tion of the brachioles. The base is badly fractured, and the sutures of the basal plates are obscured. The fork-plates are large, deeply depressed along the sutures, and ornamented by fine striae which are to some extent parallel to the median suture of the interambulacral area. There are thirt
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 1 Fig. 1, 2. Pentremites conoideus Hall. A crushed specimen from the Madison limestone at Old Baldy, Mont. 1. crum. X 10. The specimen. X 2. Detail of ambula- ambulacral area. Side-plates narrow, with minute pits for the inser- tion of the brachioles. The base is badly fractured, and the sutures of the basal plates are obscured. The fork-plates are large, deeply depressed along the sutures, and ornamented by fine striae which are to some extent parallel to the median suture of the interambulacral area. There are thirteen side-plates in five millimeters. The speci- men is in the Carnegie Museum, Pittsburgh, Penn; Pentremites godoni Defrance. Pentremites godoni? Defrance. Meek^ Rept. U. S. geol. survey, Montana, Idaho, Wyoming, and Utah, 1873, p. 469, 470. This species, or a closely related form, was noted by Meek in Car- boniferous rocks at two localities in Montana, Old Baldy near Vir- ginia City, and the Divide between Ross Fork and Lincoln Valley. Pentremites subconoideus Meek. Pentremites s^ibconoideus Meek, Rept. U. S. geol. survey, Montana, Idaho, Wyoming, and Utah, 1873, p. 471. Hambach, Trans. Acad. sci. St. Louis, 1903, 13, p. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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