352 L. Richardson — PoUicipes from Inferior Oolite. 



near Blenheim, the plates of PolUcipes ooliticus, scuta, terga, and 

 carinae — particularly the scuta — are relatively quite common, and are 

 to be found in most local collections that were made from forty to 

 sixty years ago. 



The Stonesfield Slate has been worked principally at three 

 localities — Stonesfield, Eyeford, and Sevenhampton Common, near 

 Cheltenham. At Stonesfield there is now (1908) but one pit in work, 

 and only two men engaged in making the slates that were formerly in 

 such demand. At Eyeford the industry is still carried on, not so 

 actively as previously, but the industry has not decayed to the 

 same extent as at Stonesfield. At Sevenhampton Common all the 

 pits are closed down, but one — in a field at the south-eastern end of 

 the common — was open until the last two years. 



SUBCLASS EUCEUSTACEA. 



SUPER-ORDER CIRRIPEDIA. 



ORDER THORACICA. 



FAMILY LEPADID.5;. 



PoLLiciPES AAiENSis, Richardsou, sp. nov. (Figure.) 



"^^ 



Follicipes aalensis, Richardson, sp. nov. 



Type-locality, — "Well House, Haresfield Hill, near Gloucester. 



Horizon. — Lower Limestone : Aalenian. 



Hemera. — Murch isonce. 



Collection. — Miss H. M. Huttou, Harescombe, near Stroud. 



Description. — The material available is the lower portion of the 

 tergum, of which the lower carinal margin is slightly crushed. 



Plate rhomboidal, slightly convex, with a central obtuse carina 

 running the whole extent of the portion preserved. The occludent 

 and upper carinal margins would probably have been found to stand, 

 had the specimen been better preserved, at right angles to each, other, 

 and to have been shorter than the scutal and lower carinal margins. 



The surface ornamentation consists of a number of well-marked 

 lines of growth, which form an acute angle with the carina and cross 

 it, giving it a nodulous appearance. These growth -lines are traversed 

 by fine longitudinal linese, which may have been formed by the so- 

 called epidermis. 



