194 Contributions to Palaeontology. 



AMPHION? MATUTINA. 



Glabella gibbous, longer than wide, subovate, rounded 

 and a little wider in front. Occipital ring narrow and 

 straight; occipital furrow narrow. Posterior lobe a 

 little oblique, the furrow deeply impressed and a little 

 expanded at its inner extremity : median lobe with the 

 sides nearly parallel, separated from the anterior lobe by 

 a narrow distinct furrow ; anterior lobe broad, the length 

 somewhat less than half the entire length of the glabella, 

 a scarcely denned depression extending obliquely from 

 near the middle of its length to the front. 



A part of one of the fixed cheeks remaining is semielliptical, a 

 little wider behind than in front. 



The specimen is too imperfect to admit of tracing the facial 

 suture. 



CONOCEPHALITES ? (ARIONELLUS ?) DORSALIS ( n. s.). 



Several small specimens have been observed, preserving the gla- 

 bella and fixed cheek. 



Glabella moderately gibbous, minute, truncate-conical, 

 a little wider at base than the length from the occipital 

 furrow, with two distinct slightly oblique furrows, the 

 posterior ones most oblique, and reaching about one- 



