Vol. 55.] BEDDED EOCKS OF COUNTY WATEEFOKD. 753 



the neighbourhood of Newtown Cove. It differs from any with 

 which I am acquainted, and is not too imperfect for a partial specific 

 diagnosis. 



The glabella is strongly convex and club-shaped, the anterior 

 third forming the frontal lobe expanding suddenly to about double 

 the width of the neck. There are three pairs of equidistant small 

 deep pits indenting the sides of the narrow neck-hke part of the 

 glabella, and the faint occipital furrow likewise ends in a pair of 

 similar pits. The anterior pair is situated just behind the point 

 where the glabella widens into the frontal lobe. There are also 

 three pairs of conspicuous equidistant large tubercles along the 

 length of the glabella, the front pair being on the frontal lobe. 

 Along the front edge of the glabella are four or five similar large 

 conical tubercles projecting forward. No other tubercles exist on 

 the glabella, but the surface is finely granulated. The axial furrows 

 are wide and deep. 



The fixed cheek is imperfectly preserved, but is seen to be more 

 than twice as wide as the glabella at its base, and strongly convex, 

 bending downward and backward towards the genal angle. A 

 distinct ridge runs outward close to the anterior edge of the fixed 

 cheek, from the base of the frontal lobe of the glabella to the eye. 

 Two large tubercles are seen in front of this ridge, and two similar 

 tubercles lie in a line behind it parallel with the axial furrow. 

 Another smaller one lies nearer the genal angle. No other tubercles 

 are visible on the fixed cheek, but a fine granulation is present as 

 on the glabella. 



The neck-furrow is broad though shallow, and the neck-segment 

 is narrow, rounded, and tuberculated. 



Measurements. 



mm. 



Length of head-shield 5-0 



Width (approximately) of the same 10"0 



,, of glabella at the base 2-5 



,, ,, „ across the frontal lobe 5*0 



Affinities. — The club-shaped glabella and short pit-like furrows 

 resemble Gylele hrevicauda, Ang. but the eye-ridge and sparse 

 tubercles on the glabella with the large anterior marginal tubercles 

 recall C. coronata and C. rex. 



Enckinueiis fallax, sp. nov. (PI. XLIX, figs. 9-12.) 



There is an abundant small species of Encrinurus occurring in 

 Stage 3 of the Tramore Limestone Series, and also with much less 

 frequency in Stage 2. This form was attributed to E. sexcostatus 

 by Baily, but Salter ^ had declared previously that this species was 

 not found in Ireland. So far as the Waterford area is concerned, 

 Salter appears to be right, for this Encrinurus belongs to another 

 species, as will be seen from the following description. 



1 Mem. Geol. Surv. dec. vii (1853) No. 4, p. 5. 



