52 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxix. 



The surface of the g-hibella is marked by shallow pits varying- greatly 

 in size and form; the pits are so closely crowded that the lines of 

 demarcation between them in places form an irregular network; on 

 the posterior portions of the glabella, also on the frontal limb, the 

 shallow pits ai"e more or less scattered, giving a somewhat coarsely 

 punctate appearance; the fixed cheeks and free cheeks are marked by 

 strong, but not large, pits or puncta?, scattered somewhat thickly over 

 the surface; the surface of the associated pygidium is much like that 

 of the cheeks. 



The associated pj^gidium has a width of 26 mm. and a length of 

 12 mm.; it is moderately convex with a prominent axial lobe and a 

 broad, slightly concave border that merges above the slightly convex 

 pleural lobes. Axial lobe convex with the elevated portion about five- 

 sixths of the length of the glabella; it slopes abruptly downward and 

 backward from the elevated portion to a low slightl}^ convex termina- 

 tion near the posterior margin; divided by five well-marked transverse 

 furrows that separate it into five segments and an obtuse terminal 

 segment which has two rather large, rounded nodes, outlined by a 

 slight depression at the center; the pleural lobes are grooved by the 

 extension of the furrows crossing the axis; also by pleural grooves, 

 both of which extend outward across the pleural lobe and curve back- 

 ward across the broad, planulate border of the margin. 



Formation and locality .—M\^()\q Cambrian. Lower portion of 

 Chang Hsia limestone, in green nodular shales of the horizon of the 

 oolitic limestone at the base of the Chang Hsia formation; 2 miles 

 south of Yen Chuang, Hsin Tai, Shangtung, China. 



Collected by Eliot Blackwelder, of the Carnegie Institution of 

 Washington Expedition to China. 



ANOMOCARE DECELUS, new species. 



Of this species only the anterior central portions of the head are 

 known. It is characterized b}'^ a broad, nearly flat, frontal rim that, 

 with the frontal limb in front of the glabella, has a slightly convex 

 slope interrupted only by a shallow, narrow groove; the frontal limb 

 is ornamented with raised, narrow, irregular, more or less inosculat- 

 ing lines that radiate from the front of the glabella and ocular ridges 

 down to the narrow groove separating the limb from the frontal 

 margin. 



The fixed cheeks are about half the width of the glabella. They are 

 nearly flat and interrupted by a rather strong ocular ridge. The 

 glabella is large, broadly rounded in front, with the sides sub-parallel 

 from opposite the center of the palpebral lobes to the broadly rounded 

 front. The palpebral lobes and posterior portions of the head are 

 broken away in the only specimen known. 



