206 RESEARCH IN CHINA. 



Surface with prominent, fine granulations over the glabella and fixed cheeks, 

 with the exception of the smooth places indicating the glabellar furrows. A ceph- 

 alon 10.5 mm. in length has a width of 14 mm. at the palpebral lobes. 



In form this species is closely related to Anomocarella thraso [plate 19, figs. 14, 

 i4cj]. It differs in having a more convex fixed cheek and frontal rim, and in having 

 a granulated instead of a smooth surf ace. From Ptyclioparia '? tolns [platei2,fig. 13] 

 it differs in having a proportionately more conical glabella, stronger frontal rim, and 

 finer granulose surface. 



Formation and Locality. Middle Cambrian: (C7) Lower limestone member of 

 the Kiu-lung group [Blackwelder, 19070, pp. 37 and 39 (last list of fossils), and fig. 

 8a (bed 33), p. 29], 2.2 miles (3.5 km.) southwest of Yen-chuang, Sin-t'ai district, 

 Shan-tung, China. 



Collected by Eliot Blackwelder. 



Anomocarella tatian (Walcott). 



Plate 21, Figures i, la-b. 

 Anomocare tatian WALCOTT, 1905, Proc. U. S. Nat. Mus., vol. xxix, p. 53. (Species characterized 



essentially as below.) 



This species is most closely related to Anomocarella temenus. It differs from it 

 in having a proportionately more convex and broader glabella and stronger dorsal 

 furrows. The associated pygidium is also longer in proportion to its width and it 

 has eight or nine segments in its axis. 



The largest cephalon has a length of 13 mm., exclusive of the frontal rim, which 

 is somewhat broken. This probably had a width of about 2 mm. A glabella 10 

 mm. in length has a width of 8.5 mm. at the base and 7 mm. at the broadly rounded 

 front. 



Formation and Locality. Middle Cambrian: (023) Upper part of thin-bedded 

 gray oolitic limestone at the base of the Ch'ang-hia formation [Blackwelder, 19070, 

 p. 32 (second list of fossils), and fig. 6 (bed 20), p. 25], 50 feet (15 m ) below the base 

 of the cliffs, i mile (1.6 km.) east-southeast of Ch'ang-hia, Shan-tung, China. 



Collected by Eliot Blackwelder. 



Anomocarella temenus (Walcott). 

 Plate 20, Figures 7, ja-d. 



Anomocare temenus WALCOTT, 1905, Proc. U. S. Nat. Mus , vol. xxix, p. 53. (Described as a new- 

 species.) 



Anomocare ovatum LORENZ, 1906, Zeitschr. deutsch. geol. Gesellsch., vol. LVIII, p. 77, plate 4, fig. 12. 

 (Described and illustrated as a new species.) 



Cephalon large, moderately convex, and transversely quadrilateral, exclusive 

 of the free cheeks. Glabella slightly convex, rising gently from the dorsal furrow to 

 the center, which is marked by a narrow, longitudinal ridge. A glabella 14 mm. in 

 length has a width of 10.5 mm. at the base and 8 mm. at the rounded frontal margin ; 

 indications of three pairs of glabellar furrows are shown by reflected light over the 

 smooth surface; occipital furrow very shallow, scarcely more than indicating the line 

 of demarcation between the glabella and the rather narrow occipital ring; dorsal 

 furrow shallow. 



Fixed cheeks narrow and nearly flat ; they merge laterally into the large palpebral 

 lobe and posteriorly slope down rapidly to the posterior margin; palpebral ridges 

 low, rather broad, and clearly marking the division between the central portion of 

 the free cheeks and the rapid slope to the frontal rim; frontal limb in front of the 

 glabella narrower than the frontal rim; it is slightly convex and merges into the 



