. Bulletin - United States National Museum. Science. 254 BULLETIN 11, UNITED STATES NATIONAL MUSEUM. central opening or lumen of the acanthopores and the wall structure of adjoinmg zooecia are likewise well marked. This structure of the. Fig. 146.—Oebipoea distincta. a, tangential section, X2D, illustrating the usual structures noted; b, vertical section, X8, through a portion of a zoarium; c, small portion of the same section, X20, showing structure of walls and acanthopores. Jewe limestone (D1), Baron Toll's estate, Esthonia. acanthopores and of the zooecial walls is essentially the same as
. Bulletin - United States National Museum. Science. 254 BULLETIN 11, UNITED STATES NATIONAL MUSEUM. central opening or lumen of the acanthopores and the wall structure of adjoinmg zooecia are likewise well marked. This structure of the. Fig. 146.—Oebipoea distincta. a, tangential section, X2D, illustrating the usual structures noted; b, vertical section, X8, through a portion of a zoarium; c, small portion of the same section, X20, showing structure of walls and acanthopores. Jewe limestone (D1), Baron Toll's estate, Esthonia. acanthopores and of the zooecial walls is essentially the same as in other Batostomellidse, although the uniform diameter of the zocecia and absence of macu- lae are conspicuous points of difference. The same characters, in addition to the ab- sence of diapliragms, are also well shown in vertical sections. The discoid zoarium, exceptionally large zooecia, numerous large acanthopores, and the absence of maculae and dia- phragms, are charac- ters which will cause the present species to be recognized without 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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