Batesford Lhnestone 297 



of L. mmitelli, to whicli it bears some external resemblance, 

 by the longer sides and cuspid, not broadly arched, ends. 

 Both niegalospheric and microspheric forms (forms A and B) 

 occur at Batesford, the former being common, the latter very 

 rare. A megasphere in a Batesford specimen measures 



.319mm. in diameter. The equatorial chambers of L. viarginata 

 are spatuliform; and as R. Douville has pointed out,i this type 

 is charactei'istic of the E. Indian race of Leptocyclines, as distinct 

 from the Aniei'ican race with the hexagonal outline, includ- 

 ing forms like L'. dilatata and L. raneUei. 



H. Douville,2 in " Les Foraminiferes dans le Tertiaire de Bor- 

 neo," places the beds H (sand and clay), containing Lepidocy- 

 clina tournoutri, L. sumatrensis, Miogypsina, and Operculina 

 niasi, in the Burdigalian stage (Middle Miocene) 



E. W. VredenburgS remarks that the Lepidocyclines found in 

 the Gaj beds of India are often of large dimensions, and belong 

 exclusively to the group of L. maryiiiata, with large pillars and 

 a megasphere only partly enveloped by the second chamber. 

 The Gaj beds contain no large Nummulites, and Vredenburg 

 refers to them as probably Uppermost Aquitanian (Lower Mio- 

 cene). 



Found in both Quarries. 



Lepidocyclina martini, Schlumberger. PI. IV., Figs. 2 (part), 



3 and 4. 



Orhitoides stellata, Howchin (non d'Archiac), 1889, Trans. R. 

 Soc. S. Aust., vol. XII., p. 17; id. ibib, 1891, vol. XIV., 

 p. 356. Lei'jidocyclina mar-tini, Schlumberger, 19(K), 

 Samml. Geol. Reichs-Mus. Leiden, ser. L, vol. VI., pt. 3, 

 p. 131, pi. VI., Figs. 5, 8. L. martini, Schl., Chapman, 

 1905, Journ. Linn. Soc. N.S.W., vol. XXX., p. 272, pL 

 v.. Fig. 2. 



This form out of the Batesford limestone is a true Lepidocy- 

 clina. and is clearly referable to Schlumberger's Z. martini, 

 which that author described from the Miocene beds of Java, 



1 Bull. Soc. Geol. France, 1907, ser. iv., vol. vii., p. 57 



2 Ibid, 1905, ser. iv., vol. v., p. ini. 



3 Records Geol. Siirv. India, vol. x.xxv., 1907, p. 67. 



