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| Keywords: The Quarterly journal of the Geological Society of London (13889274410).jpg 564 <br> PItOF p MARTIN DTJ 'CAN OX MICEABACIA COROXFLA <br> the other the interyening space forming a canal when the septa <br> are placed in normal apposition and the fractured surfaces of the <br> synapticula are united The synapticula are rarely continuous up <br> an intermediate loculus but are usually in continuous series and <br> the direction is well preserved fig 1 But this discontinuity inter- <br> feres with the perfectness of the canals and permits them to com- <br> municate <br> Pigs 1-3 ” Structure o/ Micrahacia coronula <br> 1 <br> 3 <br> Fig 1 A section of Micrahacia coronula magnified showing basal and septal <br> synapticula <br> Pig 2 Synapticula ending close above the basal synapticula much magnified <br> Pig 3 Side or marginal ricTr showing bifuicating costte terminating aboTe <br> in septa much magnified <br> Sometimes the synapticula when looked at from above are <br> slightly constricted ; but their length can never be appreciated from <br> such a view for only their tops are then seen <br> On tracing the synapticula in fractured specimens downwards <br> in the lower parts of the interseptal loculi they will be found <br> usually to cease above the base tig 2 and to be succeeded in <br> order by others which are short and variable in shape Those at <br> the base are the bars seen between the costae at the base of the <br> corallum The spaces between these bars pass upwards into the <br> more or less continuous canals just mentioned and the bars are <br> evidently synapticula <br> The synapticula are often large rather high up in the loculi and <br> they cover much of the surface of the septa but there is much <br> variation in their development in different individuals 36941397 113697 51125 Page 564 Text 40 http //www biodiversitylibrary org/page/36941397 1884 Geological Society of London NameFound Micrahacia coronula NameConfirmed Micrabacia coronula Goldfuss 1827 EOLID 4685614 NameFound Synapticula Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 40 1884 Geology Periodicals Smithsonian Libraries bhl page 36941397 dc identifier http //biodiversitylibrary org/page/36941397 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-30 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13889274410 2015-08-26 05 52 15 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1884 Photos uploaded from Flickr by Fæ using a script | ||||
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