NO. 4 CAMBRIAN FAUNAS OF CHINA 8l 



shield of the various species are available for comparison other dif- 

 ferences will be found to exist between Inouyia and Agraulos. 



In grouping- the Chinese species under Inouyia some are found to 

 be close to Agraulos, notably I. obaris (Walcott), /. acalle (Wal- 

 cott), and /. regularis (Walcott), and it is probable that with more 

 complete specimens of the species they will be referred to a subgenus 

 intermediate between Inouyia and Agraulos. 



The wide fixed cheeks of Inouyia capax are confined to this species, 

 as all other species referred to Inouyia have relatively narrow fixed 

 cheeks. The large eye of /. ? inflata (Walcott) and relatively narrow 

 frontal limb Serve to place it apart from the other species. 



I am not at all satisfied with the arrangement of species under 

 Inouyia but in dealing with such fragmentary specimens much must 

 be left to future discovery and closer work. 



Attention is also called to EUipsocephalus hoffi Barrande' as in 

 that species the frontal limb is convex and the glabella subrec- 

 tangular. 



The generic name is given in recognition of Dr. Kinos Ka Inouye, 

 Director of the Imperial Geological Survey of Japan. 



INOUYIA ? THISBE, new species 



Plate 14, fig. 14 



This species is represented by two broken specimens of the cran- 

 idium. These show that the glabella is much like that of Ino^iyia 

 fitiana (Walcott), also the fixed cheeks and palpebral lobes. It dif- 

 fers in the transverse swelling of the frontal limb. In /. f thishe 

 the frontal limb rises with a slight slope in front of the glabella, and 

 curves gently downward to the margin without a trace of a frontal 

 border as in Inouyia inflata (Walcott). In /. titiana the frontal limb 

 is abruptly convex and there is an almost flattened border. 



The surface of /. f thishe is distinctly punctate and in this respect 

 resembles Agraulos dryas. 



The type specimen of the craniflium has a length of 5.5 mm. 



Formation and locality. — Middle Cambrian: (C28) thin bedded 

 oolitic limestone at the base of the Ch'ang-hia limestone, just above 

 the shales in the face of the cliff one mile (1.6 km..) east-southeast 

 of Ch'ang-hia, Shan-tung, China. 



Collected bv Eliot Blackwelder. 



' Barrandc, 1852, Systeme Silurien du Centre de la Boheme, Vol. I, pi. 10, 

 figs. 26, 27. 



