202 RESEARCH IN CHINA. 



the occipital furrow ; dorsal furrow clearly defined on the sides and slightly marked 

 in front of the glabella. 



Fixed cheeks narrow, not over one-fourth the width of the glabella; palpebral 

 lobes about one-third the length of the cephalon, somewhat nearer the posterior 

 than the frontal margin of the cephalon; palpebral ridge short, and not prominent; 

 it terminates a little back of the antero-lateral angle of the glabella; frontal limb 

 narrow, very slightly convex, and sloping downward, with a well-defined furrow 

 separating it from the strong, rounded, thickened frontal rim; four small, shallow 

 pits occur in the furrow, one strong one on each side of the center, and one faint one 

 opposite the outer edges of the glabella. 



Surface finely granulose under a strong lens. The largest cephalon has a 

 length of 5 mm. 



This species is distinguished from other species of the Chinese Cambrian by its 

 rounded, strong frontal rim, and very slightly tapering glabella, in the latter respect 

 recalling such forms of Anomocarc as A. alcinoc [plate 18, fig. 6], A. minus Dames 

 [plate 19, fig. i], and Anomocarella butes (Walcott) [plate 19, fig. 7] from the Cambrian 

 of China. 



Formation and Locality. Middle Cambrian: (C71) Massive cliff-making lime- 

 stone in the central portion of the Ki-chou formation [Willis and Blackwelder, 1907, 

 pp. 139 and 145 (second list of fossils)], 4 miles (6.4 km.) southwest of Tung-yii, 

 Shan-si, China. 



Collected by Bailey Willis and Eliot Blackwelder. 



Anomocarella hermias Walcott. 

 Plate 20, Figures 5, 50. 



Anomocarella hermias WALCOTT, 191 1, Smithsonian Misc. Coll., vol. 57, No. 4, p. 92, plate 15, fig. 10. 

 (Described and discussed as a new species essentially as below.) 



This species is represented by specimens of the cranidium having an unusually 

 large and long palpebral lobe. This character is sufficient to distinguish it from 

 other described species. The surface appears to be minutely punctate or marked 

 by minute, shallow pits. 



Formation and Locality. Middle Cambrian: (35 n) Fu-chou series, limestones 

 near the base of the series just above the white quartzite [see Blackwelder, 19076, p. 

 92, for general section showing stratigraphic relations], collected in a low bluff on the 

 shore of Tschang-hsing-tau Island, east of Niang-niang-kung, Liau-tung, Manchuria, 

 China. 



Collected by J. P. Iddings and Li .San. 



Anomocarella irma Walcott. 

 Plate 19, Figures 8, 8a. 



Anomocarella irma WALCOTT, 1906, Proc. U. S. Nat. Mus., vol. xxx, p. 584. (Described as a new 

 species.) 



This species is represented by two specimens of the central portions of the 

 cephalon. These indicate that the cephalon was semicircular in outline, and mod- 

 erately convex. Glabella prominent, convex, sides straight and converging gently 

 tov/ard the front, which is broadly rounded; the only traces of glabellar furrows are 

 two faint scars near the front, which extend from the outer margin nearly to the 

 median line of the cephalon; occipital furrow well defined, separating a rounded, 

 rather strong occipital ring; dorsal furrow distinctly defined at the sides and less 

 clearly marked in front of the glabella. 



