Batesford Limestone. 313 



Plate LIIT. 



Fi^. 1 — Spiropkcta siphoni/era, Brady, sp. Median vertical 



section passing through the megasphere, and showing 



the spiroplectoid commencement. Filter Quarry. 

 X 40. 

 2 — Rotalia ca/car, d'Orb., sp. Four examples showing the 



redundant papillose shell-growth and the calcarine 



periphery. Filter Quarry. x 18. 

 3 — Gypsina howchini^ sp. nov. Median section of test, 



showing the crowded initial series of chambers. 



Upper Quarry, near Batesford. x 40. 

 4 — G. hoivchini, sp. nov. Median section of test vertical to 



the disc, shewing megasphere. Upper Quarry, near 



Batesford. x 40. 

 5 — G. hoivchi?ii, sp. nov. Another specimen in vertical 



section, showing a tendency to develop a median line 



of chambers as in Miogypsina. Upper Quarry, near 



Batesford. x 40. 

 6 — Amphistegina lessonii^ d'Orb. Section in limestone 



parallel with the umbilical axis ; showing the 



asymmetry of the test as distinct from Niimmulites. 



Upper Quarry, near Batesford. x 40. 



Plate LIV. 



Fig. 1 — Lepidocyclina tournoueri, Lemoine and Ft. Douville. 



Lateral aspect. Filter Quarry. x 18. 

 2 — Vertical sections of Lepidocyclhia ?narti?ii, Schlumberger 



(left hand figure), and Z. toiirnoueri^ Lem. and Douv.; 



in limestone from the Upper Quarry, near Batesford. 

 X 18. 

 3 — Lepidocyclitia martini^ Schl. Lateral aspect. Filter 



Quarry. x 18. 

 4 — Z. martifii, Schl. Median transverse section of test, 



showing chamberlets of both superficial and median 



layers. Filter Quarry. x 18. 



