452 GASTEROPODA OF THE INFERIOR OOLITE. 
prominent, but considerably narrower than the intercostal spaces. The latter are 
traversed by a system of cross-lines or lamelle, giving the shell a scaly appearance 
(scarcely seen in the figured specimen). The two ribs which enclose the fissure 
approximate, but of the length of the fissure it is not easy to speak with certainty. 
The margin was probably crenulate. 
Relations and Distribution —This form, which most nearly approaches 
E. scalaris of the Great Oolite, is fairly abundant in what is believed to be the 
upper part of the Lincolnshire Limestone at Spittlegate Quarries. The species is 
quoted by Lycett from the Inferior Oolite of Leckhampton, but I have not seen any 
satisfactory specimens from that quarter. 
393. Emarcrnuta Leckaampronensis, Dycett, 1850. Plate XII, figs. lla, 11. 
1850. Emaremnuna Lecknampronensis, Lycett. Ann. Mag. Nat. Hist., 2nd 
ser., vol. vi, p. 415. 
1853. — — — Proc. Cotteswold Nat. Club, 
vol. i, p. 76. 
Description —* Oval, depressed; apex posterior; coste large, rounded and 
tuberculated, where crossed by encircling lines; coste twenty-six in number.” 
The figured specimen answers in many respects to Lycett’s brief diagnosis, 
especially as to its oval shape and depressed character, but the coste are no more 
than twenty in number. The following are the dimensions of the figured specimen, 
which is from Leckhampton. 
Length | ( : : . 26 mm. 
Width ; Approximate : 5 . 2mm. 
Height | | 1:25 mm. 
394, EmarcinuLa Linponensis, sp. nov. Plate XI, figs. 14a, 14b; and P lda, 
13 b. 
Description : 
Length 4 mm 
Width 3mm 
Height : 2°75 mm. 
Shell elevated, apex very posterior, periphery ovate and rather expanded 
anteriorly. Number of ribs twenty-five to twenty-six, prominent and wide. ‘The 
intercostal spaces have closely-set lamelle which infringe upon the coste and 
produce a granular appearance ; very fine intermediate costa may also be noticed. 
There is but slight approximation of the pair of ribs which contain the fissure. 
