DESCRIPTION OF GENERA AND SPECIES. 105 
south of Ch’ang-hia; also (C27), buff and drab shales in the lower part of the 
Man-t’o shale [Blackwelder, 1907a, p. 26, third paragraph; and fig. 6 (bed 7), p. 
25], on crest of ridge at Ch’ang-hia, Shan-tung, China. 
Collected by Eliot Blackwelder. 
Dr. H. Mansuy reports this species from southern China, near Yunnan-Fu, 
province of Yunnan. 
Redlichia ? finalis Walcott. 
Plate 7, Figures 13, 13a—). 
Redlichia finalis WaucoTtT, 1905, Proc. U. S. Nat. Mus., vol. xxrx, p. 26. (Discussed as a new species 
essentially as below.) 
This species is represented by one imperfect cephalon, several free cheeks, 
and several long spines similar to those occurring with R. chinensis [p. 104], which 
were probably attached to a segment of the thorax as in Zacanthoides typicalis 
(Walcott) [1886, plate 25, fig. 2]. The fragment of the cephalon indicates an almost 
cylindrical glabella and elongate eye-lobe; the free cheek indicates a shorter ante- 
rior fixed cheek than that of R. nobilis. The material representing this species 
is imperfect, but the fact that it occurs near the top of the Ch’ang-hia limestone, 
1,000 or more feet above R. chinensis and RK. nobilis, in a strongly marked Middle 
Cambrian fauna, makes it desirable to give the form a specific name. It appears 
to be nearer the type of the genus R. noetlingi Redlich [1901, p. 3] from India than 
the other two species from China. 
Formation and Locality—Middle Cambrian: (C58) Green shale near the 
middle of the Ch’ang-hia limestone, at top of hill 2 miles (3.2 km.) south-southeast 
of Kao-kia-p’u, Shan-tung, China. 
Collected by Eliot Blackwelder. 
Redlichia nobilis Walcott. 
Plate 7, Figures 12, 12a-e. 
Redlichia nobilis WaL.coTt, 1905, Proc. U.S. Nat. Mus., vol. xx1x, p. 26. (Discussed as a new species 
essentially as below.) 
This species is closely related to Redlichia noetlingi: Redlich [1901, p. 3]; it 
differs in the form of the posterior segment of the glabella and the somewhat less 
cylindrical form of the glabella. 
From Redlichia chinensis [p. 104] it differs in its less tapering glabella and 
shorter anterior fixed cheeks. 
As far as known, it occurs only in the lower portion of the Man-t’o formation. 
Formation and Locality—lLower Cambrian: (C3) Lower part of the Man-t’o 
shale formation [Blackwelder, 1907a, p. 28 (list of fossils at bottom of page), and 
fig. 8a (bed 20), p. 28], on the southeast slope of Hu-lu-shan, 2.5 miles (4 km.) 
southwest ur Yen-chuang, Sin-t’ai district, Shan-tung, China. 
Collecte | by Eliot Blackwelder. 
Redlichia sp. undt. (a2) Walcott, 
Plate 7, Figure 14. 
Redlichia sp. uudt V/ ALCoTT, 1905, Proc. U.S. Nat. Mus., vol. xx1x,p.26. (Species discussed as below.) 
A large free cheek and two thoracic spines, much like those found with R. 
chinensis [p. 104]. are all that is known of this species. The angle of divergence of 
the lateral spine is much greater than in other species, and the stratigraphic horizon 
is higher in the section. 
