(iv) So Palxontolof/ia Sinica Ser. B. 



This species resembles both Pt. calyce Walcott and Pt. ceto Walcott in the 

 transverse form of the anterior lobe, but differs greatly from both in having a very large 

 palpebral lobe, narrow fixed cheeks and also in the presence of the frontal limb. 



The large palpebral lobe and the pustulose character of this species suggest Pt, 

 campe from Chaumitien limestone of Chau-Mi-Tien, but the distinct, continuous 

 arching transverse furrow and the concave frontal limb serve to distinguish it. 



This species is characterized by the tj-ansverse form of the anterior lobe, large 

 palpebral lobe, concave frontal limb and pustulose and ridged character of the surfaces. 

 It is named after Mr. H: C. T'an, (WM^) geologist of the Survey, in recognition of 

 the geological work done by him in Shantung. 



Measurements : — 



Length of glabella 3.9 mm. 



Width of Anterior lobe (longitudinal) 2.3 mm. 



Width of second lobe 1.0 mm. 



Width of third lobe 1.0 mm. 



Width of frontal limb and rim combined ].0 mm. 



Horizon and Locality: — Upper Cambrian: from the Upper Cambrian 

 limestone of Chau-Mi-Tien. Collected by University Excursion. 



Genus AnOMOCARE Angelin 

 AnOMOCARE FLAVA Walcott 

 Plate V, Figs. 8a-d. 

 191,6 Anomocare llava Walcott, Proc U. S. Nat. Mus., Vol. XXX, p. 583. 

 1913 Anomocare flava Walcott, Research in China. Vol. Ill, pp. 190-191, pi. 18; tigs. 8; 8a-c. 



This species was found by Willis and Blackwelder in the Kichou formation of 

 Shansi and very fully described by Walcott. In the collection from the Kaiping Basin it 

 is represented by more than 50 individuals and certainly is one of the most common 

 species in the Changhia formation of Nortli China. It is associated with Dorypyge 

 richthofeni, Solenopleura nodosa, and two species of lAsania. 



It is characterized by its quadrilateral cranidium, short and moderately convex 

 glabella with slight indications of glabellar furrows, shallow occipital furrow, low and 

 broad palpebral ridge, sHghtly convex, broad frontal rim, presence of the occipital node; 

 and by a pygidium with a broad, planulate margin and with a narrow convex axis, 

 slightly segmented. 



