10 H. Woodward — New Lias Crustacean. 



In the cases above cited the conglomerate beds are highly tilted, 

 but another kind, namely, flat-roofed caves, may be observed where 

 the beds are horizontal. A good example of this class is afforded 

 by a nearly isolated rock of Old Eed Sandstone at the village of 

 Ballochantye (Fig. 3) ; a rock, truly wave-worn, and now so far 



Fig. 3. — Cave in Old Coast-cliffs, Ballochantye, Cantyre. 

 out .of reach of the sea, that the village is built between it and the 

 shore, at a lower level. In this case the sea has acted horizontally 

 by working in a stratum softer than the others within its reach, 

 somewhat after the plan adopted by coal-miners. The upper layers 

 then give way until one is reached suiiliciently firm to form the 

 roof. In another part of the rock a hole has actually been pierced 

 right through along the line of another softer layer of sandstone. 



Though the very recent elevation of the land, the evidences of 

 which we have now been considering, has added some millions of 

 acres to the area of Western Scotland, it cannot be doubted that the 

 present action of the sea tends year by year to narrow the terrace, 

 and to obliterate the vestiges of ancient sea action. As the present 

 sea cliffs and skerries are being worn back towards the former 

 coast-line, the two have in some places become as one, and it is 

 sometimes impossible to trace the dividing line. Still, for all we 

 can say to the contrary, it is quite possible another elevation of the 

 coast may take place before all traces of "the thirty -feet" beach 

 have disappeared. 



III. — On a New Crustacean (^gek Makderi, H. W.), from the 



Lias of Lyme Eegis, Dorsetshire. 



By Henhy Woodward, F.G.S., F.Z.S. 



(PLATE I.) 



THE beautiful crustacean, forming the subject of this paper, 

 which is represented of the natural size in the accompanying 

 plate, was obtained by Mr. J, W. Harder, from the Lower Lias of 

 Lyme Regis, in Dorsetshire. 



It is the first British example of the genus Mger of Count 



Miinster,^ a well-known form in the Lithographic stone of Solen- 



hofen, in Bavaria. The specimen, which is now in the Geological 



Collection of the British Museum, is exposed on a slab of soft Blue- 



1 Miinster's Beitriige Zur Petrefacten-kuude. Bayreuth, 1839. Heft ii. p. 64. 



