DESCRIPTION OF GENERA AND SPECIES. 187 
Genus ANOMOCARE Angelin. 
Anomocare ANGELIN, 1854 (edition 1878), Pal. Scandinavica, pt. 1,p.24. (Described as a new genus.) 
Anomocare (Angelin) WaLcort, 1911, Smithsonian Misc. Coll., vol. 57, No. 4, p. 87. (Discussed 
essentially as below.) 
For the purpose of comparison a cranidium, free cheek, and pygidium of 
Anomocare leve are illustrated by figures 1, 1a—b, plate 18; also an entire dorsal 
shield of Anomocare convexa Walcott [figs. 3, 3a—-c, plate 18] from the Middle Cam- 
brian strata of Alabama. 
Genotype.—Anomocare leve Angelin [1854, edition of 1878, p. 25]. 
Anomocare alcinoe Walcott. 
Plate 18, Figures 6, 6a—0. 
Anomocare alcinoe WALCOTT, 1905, Proc. U. S. Nat. Mus., vol. xxrx, p. 47. (Described as a new 
species essentially as below.) 
This species is represented by a single specimen, preserving the anterior portions 
of the central part of the cephalon, exclusive of the free cheeks. These parts indi- 
cate that the cephalon was large, moderately convex, and longitudinally quadri- 
lateral, exclusive of the free cheeks. Glabella slightly convex, rising gently from 
the dorsal furrow toward the center; faint indications of three pairs of glabellar 
furrows are shown by reflected light over the smooth surface; sides subparallel to 
the rather broadly rounded front; occipital furrow and ring unknown. 
Fixed cheeks about one-half the width of the glabella, nearly flat opposite the 
palpebral lobes, and sloping gently to the frontal limb, into which they merge in 
front of the palpebral lobes; the palpebral ridge, starting just back of the antero- 
lateral angle of the glabella, extends obliquely out to the narrow palpebral lobe; 
frontal limb nearly flat; it slopes gently from the glabella and palpebral lobes to a 
raised line which separates it from the broad, slightly concave frontal rim. 
The surface appears to be smooth under a strong lens. 
An associated pygidium has a broad, planulate margin and convex axis, with 
slight indications of about six segments. 
The most nearly related form from China is Coosia decelus [plate 21, figs. 8, 8’]. 
In the latter form the frontal rim is slightly convex, while in A. alcinoe it is slightly 
concave. 
Formation and Locality —Middle Cambrian: (C57) In limestone nodules in the 
lower shale member of the Kiu-lung group [Blackwelder, 1907a, pp. 37 and 40 (first 
list of fossils)], 3 miles (4.8 km.) south of Kao-kia-p’u, and 4 miles (6.4 km.) north of 
Sin-t’ai-hién, Sin-t’ai district, Shan-tung, China. 
Anomocare convexa Walcott. 
Plate 18, Figures 3, 3a-c. 
Anomocare convexa WALCOTT, 1911, Smithsonian Misc. Coll., vol. 57, No. 4, pp. 87-90, plate 17, 
figs. 2, 2a-d. (Described and discussed as a new species essentially as below.) 
Dorsal shield large, elliptical in outline; axial lobe narrow and convex; cephalon 
semicircular in outline with the genal angles produced into spines. The facial 
sutures cut the posterior margin a short distance within the genal angles and extend 
inward with a slight curvature and forward to the base of the palpebral lobe; 
arching around the palpebral lobe, they extend downward and slightly forward a 
short distance and then with a broad sweep curve inward, cutting the anterior 
margin on a line with the outer edge of the palpebral lobe. Cranidium with a large 
glabella, concave frontal limb, relatively narrow fixed cheeks, and elongate, narrow 
postero-lateral limbs. Glabella moderately convex, with the sides gradually con- 
