SUPPLEMENT— KILIANIA. 



lxv 



but there is less compression and a more tabulate 

 periphery. The radial curve differs. 



Geological Position. — The Pea-grit series of Glouces- 

 tershire, and lower part of the so-called Inferior 

 Oolite Limestone of Dorset- Somerset. 



Fig. 22 a.— Radial line of Kiliania 

 laeiniosa. Substitute for Fig. 22, 

 which is radial line of Ludwigia 

 inserted by mistake. 



a. Periphery tabulate. 

 1. Kiliania armipotens, 8. BucJcman. Fig. 23 in text. 



Description. — Platy-subpachygyral, subangustumbilicate, bullate changing to 

 costate. 



Fig. 23. — Kiliania armipotens. Chideock. 



Note. — The tnberculate stage is very strongly developed ; some of the tubercles 

 are almost spines. 



Remarhs. — This species, with its strongly tuberculate umbilicus, has the 

 appearance of a Sonninia, or a Hammatoceras ; but the radial curve is a good 

 distinction. 



Localities and Strata. — Dorset: Chideock Quarry Hill, in the "Wild Bed;" 

 Gloucestershire : Birdlip, in the Pea-grit, two rather small, inferior specimens 

 (one from Mr. J. F. Walker, F.G.S.). 



Date of Existence. — Murchisonge hemera. 



2. Kiliania laciniosa, S. Buchnan. Suppl., Plate XV, figs. 4 — 6. 

 Description. — Platy-subpachygyral, gradumbilicate ; costate. 

 Note. — Instead of bullae there are stout costoe on the inner whorls. The stout 



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