. Bulletin - United States National Museum. Science. FiG. 204.—Hallopoea goodhuensis. a, tangential section, X20, of a small but well developed RussL^N specimen; 6, vertical section of the same specimen, X20. Wassalem beds (P3), Uxnokm, ESTHONIA. ters. He fails to illustrate the tabulation, a most important char- acter in the discrimination of such species, but I have no doubt that the common Hallopora of the Wesenberg limestone, whose internal characters are shown in figure 205 is Dybowski's Monticulipora wesen- Fig. 205.—Hallopoea wesenbeegiana. a, tangential region, X20, of tee o
. Bulletin - United States National Museum. Science. FiG. 204.—Hallopoea goodhuensis. a, tangential section, X20, of a small but well developed RussL^N specimen; 6, vertical section of the same specimen, X20. Wassalem beds (P3), Uxnokm, ESTHONIA. ters. He fails to illustrate the tabulation, a most important char- acter in the discrimination of such species, but I have no doubt that the common Hallopora of the Wesenberg limestone, whose internal characters are shown in figure 205 is Dybowski's Monticulipora wesen- Fig. 205.—Hallopoea wesenbeegiana. a, tangential region, X20, of tee outermost part of the MATURE zone; 6, TANGENTLVL SECTION, X20, CUTTING THE EARLY PORTION OF THE MATURE REGION "WHERE MESOPOEES ARE BEST DEVELOPED; C, VERTICAL SECTION, X20, SHO"VnNG CHARACTERISTIC TABU- LATION. AVesenbeeg limestone, Wesenberg, Esthonia. As shown in Dybowski's figure, the branches frequently and irregu- larly divide and average 5 mm. in diameter. Their surface is smooth, but maculae of larger zooecia and more numerous mesopores are fre-. 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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