DESCRIPTION OF GENERA AND SPECIES. 161 
lens, between the larger puncte. The species now referred to the genus are Pagodia 
bra Walcott, P. dolon Walcott, P. lotos Walcott, and P. macedo Walcott. I was at 
first inclined to refer these forms to Dolichometopus, but they differ from the type of 
the latter, Dolichometopus svecicus Angelin [(1854) 1878, p. 73, plate 37, fig. 9], in the 
narrowing instead of widening of the glabella in front, in the presence of small 
instead of large eye-lobes, short instead of long postero-lateral limbs, and obscure 
glabellar furrows. 
Pagodia bia Walcott. 
Plate 15, Figures 10, 10a. 
Pagodia bia WaLcort, 1905, Proc. U. S. Nat. Mus., vol. xxrx, p. 65. (Described as a new species 
essentially as below.) 
Cephalon, exclusive of free cheeks, subrhomboidal, moderately convex. Gla- 
bella slightly convex, subquadrilateral in outline, slightly narrowed along the cen- 
tral portions, and marked by two pairs of short glabellar furrows on the posterior 
half and a very slight depression indicating a furrow on each side well toward the 
front; occipital furrow narrow, very clearly defined, and arching slightly forward 
toward the center; occipital ring narrow and rounded; dorsal furrow shallow but 
distinct. 
Fixed cheeks about half as wide as the glabella and sloping gently downward 
from the dorsal furrow; palpebral lobes small, situated about midway between the 
front and back margins of the cephalon; no traces of palpebral ridges have been 
observed; postero-lateral limb short, strong, and marked by a rounded furrow within 
the posterior margin; frontal rim very narrow, rounded, and separated from the gla- 
bella and fixed cheeks by a narrow, deep furrow. 
Surface marked by a few shallow, scattered puncte, and under a very strong 
lens it appears to be minutely punctate. 
The largest specimen of the cephalon in the collection has a length of 8 mm. 
The form of the glabella of this species is not unlike that of Pagodia macedo 
[p. 163], but its anterior lobe is much broader. 
Formation and Locality—Upper Cambrian: (C56) Lower part of Ch’au-mi-tién 
limestone, 25 feet (7.5 m.) below the top of Pagoda Hill [Blackwelder, 19074, p. 42 
(part of last list of fossils)], 1 mile (1.6 km.) west of Tsi-nan, Shan-tung, China. 
Collected by Eliot Blackwelder and Li San. 
Pagodia dolon Walcott. 
Plate 15, Figure 11. 
Pagodia dolon Watcott, 1905, Proc. U. S. Nat. Mus., vol. xx1x, p. 66. (Described as a new species 
essentially as below.) 
This species is represented by two specimens of the cephalon, exclusive of 
the free cheeks. Glabella elongate, subquadrilateral, moderately convex; a very 
obscure trace of a posterior pair of short furrows is all that can be seen on the outer 
surface; occipital furrow rather narrow, clearly impressed, and arching slightly for- 
ward at the center; occipital ring narrow at the sides, increasing gradually in width 
to the center, where it is strong and moderately convex; dorsal furrow strong at the 
sides and front of the glabella. 
Fixed cheeks a little more than one-half the width of the glabella, convex, and 
sloping outward and downward from the dorsal furrow; back of the palpebral lobes 
they slope gently to the furrow within the posterior margin, and anteriorly more 
rapidly to the furrow within the frontal rim; palpebral lobes small, about one-fourth 
the length of the cephalon; postero-lateral limb short, and marked by a strong, 
