PATELLA. 463 
408. Parecta Rouert, Morris and Lycett, 1851. Plate XLII, figs. 8a, 8 db. 
1851. Parenca Rémert, Morris and Lycett. Gt. Ool. Moll., pt. 1, p. 91, pl. xii, 
figs. 6, Ga, 6. 
A single specimen from the lowest bed of Tinkler’s quarry at Stamford (Lincoln- 
shire Limestone) greatly resembles the typical forms from Minchinhampton and 
Bussage. The Inferior Oolite specimen is somewhat more depressed and orbicular, 
whilst the interstitial radials are less conspicuous. 
409. PATELLA FENESTR#, sp. noy. Plate XLII, figs. 9a, 9b. 
Description : 
Length : : : : . 41 mm. 
Width : : ¢ ‘ 5 ol iomian, 
Height , ; _ 21 mmr 
Shell elliptical, conical, elevated ; apex nearly central, corroded and obtuse. 
Base oval, sides compressed. Ornamented by rugose radiating coste, which are 
wide apart and decussated at wide intervals by concentric lines; tuberculations 
occur at the points of intersection. Margin thickened. 
Relations and Distribution—This form seems to stand alone amongst the 
Patellids of the Lower Oolites. The nearest described species of Jurassic age 
appears to be P. sulcata, Deslongchamps (‘ Mém. Soc. Linn. Norm.,’ vol. vii, p. 115, 
pl. vu, figs. 9 and 10), from the Inferior Oolite of Port-en-Bessin. But even this 
species differs widely. On the other hand, its resemblance to the more elevated 
varieties of the existing Patella vulgata are quite startling. 
A single specimen has been found by Mr. Windoes in the Chipping Norton 
Limestone, which overlies the Clypeus-grit in the neighbourhood of that town. 
This may be regarded as the highest horizon of the Inferior Oolite. 
410. Parecta retirera, Lycett, 1850. Not figured. 
1850. Parenta Retirera, Lycett. Ann. Mag. Nat. Hist., 2nd ser., vol. vi, 
p- 415. 
1853. = — = Proce. Cotteswold Nat. Club, vol. i, p. 76. 
Syn. Fissurerna Bropier, Lycetét. Ann. Mag. Nat. Hist., vol. cit., p. 415; 
and Proce. Cotteswold Nat. Club, vol. cit., 
p- 76. 
