46 LOWER CAMBRIAN FOSSILS — WALCOTT. 



from the glabella by a deep furrow; a small node occurs at the 

 center; the glabella rises rather abruptly from the broad, slightly con- 

 vex fixed cheeks and narrow, frontal limb, a shallow, dorsal furrow serv- 

 ing to give it more prominence. The broad, fixed cheeks are crossed 

 by a narrow, ocular ridge that passes obliquely outward and backward 

 from a point on the dorsal furrow opposite the anterior margin of the 

 eye lobe, where it unites with the outer rim of the rather large, promi- 

 nent eye lobe. .Anterior rim of the head of medium width, rounded 

 and separated from the frontal lobe by a narrow, distinct furrow. The 

 posterior rim or margin is more rounded than the anterior, and the fur- 

 row defining it is deeper. The short, posterolateral limb of the fixed 

 cheek slopes abruptly down to its half-truncated margin. 



Surface strongly granular or pustulose. 



Formation and locality. — Associated with Solenopleura f harveyi. 



The specific name is given in honor of Mr. James P. Howdey, geolo- 

 gist of Newfoundland. 



Nat, Mus. Cat. Invt, Foss., No. 18336. 



Smithsonian Institution, June 1, 1889. 



