EMARGINULA. 451 
hitherto referred to Fisswrella belong to another genus, possibly to Punctwrella. 
I have never seen either in the Inferior Oolite or the Great Oolite a true keyhole 
Limpet.' 
I have not seen any members of this family in the Dorset-Somerset district, 
nor in the Yorkshire Dogger. Inferior Oolite specimens are from the Cotteswolds 
and the Lincolnshire Limestone, but in all cases somewhat rare. 
Genus—Emarainuta, Lamarck, 1801. 
Shell oval, conical, elevated, with the apex recurved ; surface cancellated ; anterior 
margin notched ; nucleus spiral ; slit variable in extent. 
392. Emarcinuta scataris, Sowerby, 1826. Plate XLI, figs. 120,12). N.B.—In 
the figured specimen the intercostal lamelle have 
perished. 
1826. EmanrGinuna scatanis, Sowerby. Min. Conch., pl. dxix, figs. 3 and 7 4. 
1851. = = — Morris and Lycett, Gt. Ool. Mboll., 
pt. i, p. 88, pl. vin, fig. 4. 
1854. _— — — Morris, Cat., p. 246, as from the Great 
Oolite and Inferior Oolite. 
1885. Emarernuta scatarts, Sowerby. Cossmann, Etage Bathonien, p. 346, 
pl. xii, figs. 839 and 40. 
? Non - — Deslongehamps, Mém. Soc. Linn. 
Norm., vol. vii, p. 125; and P pl. vii, 
figs. 30—32. 
Bibliography, §e—The Ancliff fossils differ somewhat from those now figured ; 
but the differences are probably due to mineralisation to some extent. 
Deslongchamps’ identification is held by Cossmann to be incorrect, and he has 
named the species so identified H. Deslongchampst. 
Description (based on specimens from the Lincolnshire Limestone) : 
4 mm. 
Length | 
Width | Approximate | : ‘ , PPTs) weateaty 
Height 2°75 mm 
Shell elevated, apex posterior, periphery ovate, with slight expansion of the 
anterior area. The ribs, about seventeen in number, are nearly equal and 
1 PJ. viii, fig. 5, of Morris and Lycett’s work must, I fear, be regarded as the result of artistic 
treatment. 
