Keywords: The Quarterly journal of the Geological Society of London (12711512653).jpg WOODWARD HIPPURITID E <br> 51 <br> the margin ; not branching or communicating with the outer surface <br> as in Hippurites but opening round the inner edge of the valve <br> Figs 19 20 ” External views o/ Bi-radiolites and Monopleura <br> Fig 19 Fig 20 <br> Fig 19 <br> I posi- <br> Upper valve of Biradiolites canaliculatus D'Orb f nat size <br> tion of ligamental line ; a a areas bordering ligamental groove <br> Fig 20 Upper and lower valves of Monopleura imbricata Math nat size <br> / ligamental groove ; p point of attachment <br> The genus Monopleura Matheron merged in Caprotina by M D'Orbigny ap- <br> pears to want the essential features of the latter genus and at present we have no <br> means of determining whether it belongs even to the same family The following <br> species may be referred to this provisional genus M trilobata and lamellosa <br> D'Orb M gryphoides varians sulcata imbricata and Marticensis Matheron <br> M Texana and triquetra Roemer <br> Figs 21 22 ” Interior and Exterior o/Caprina <br> Fig 21 Fig 22 <br> I <br> Fig 21 Caprina Aguilloni D'Orb Interior of left valve a a' position of ad- <br> ductors ; I ligamental groove ; u umbonal cavity ; t tooth of fixed <br> valve broken off and remaining in its socket <br> Fig 22 C adversa after D'Orb c point of attachment <br> The single tooth of the lower valve is sometimes enormously de- <br> veloped fig 21 t The upper valve is convex or spiral The <br> cartilage is lodged in a shallow groove or in numerous deep pits <br> E 2 35614611 110213 51125 Page 51 Text v 11 http //www biodiversitylibrary org/page/35614611 1855 Geological Society of London NameFound Biradiolites canaliculatus NameConfirmed Biradiolites canaliculatus NameFound Caprina NameConfirmed Caprina NameBankID 112500 NameFound Caprina adversa NameConfirmed Caprina adversa NameFound Caprotina NameConfirmed Caprotina NameBankID 4103255 NameFound Hippurites NameConfirmed Hippurites EOLID 4773611 NameBankID 4195877 NameFound Monopleura NameConfirmed Monopleura NameBankID 4244474 NameFound Monopleura gryphoides NameConfirmed Monopleura NameBankID 4244474 NameFound Monopleura imbricata NameConfirmed Moniera imbricata NameFound Monopleura trilobata Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 11 1855 Geology Periodicals Smithsonian Libraries bhl page 35614611 dc identifier http //biodiversitylibrary org/page/35614611 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-23 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12711512653 2015-08-26 20 59 20 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1855 Photos uploaded from Flickr by Fæ using a script |