DESCRIPTION OF GENERA AND SPECIES. 215 
eye-lobe characteristic of Anomocare leve [plate 18, fig. 1] the type of the genus 
Anomocare. I think that in all probablity, with the securing of entire specimens of 
C. (2?) limbata, the species will be found to have characters intermediate between 
Coosia and Anomocare. For the present, however, I will refer it to the genus Coosia, 
subgenus undetermined. 
Formation and Locality.—Middle Cambrian: (91) Conasauga (Coosa) shales, 
at Cedar Bluff, Cherokee County, Alabama; (16) limestones in Conasauga (Coosa) 
shales, Blountsville Valley, Blount County, Alabama; and (107) limestone in Bull 
Run, northwest of Copper Ridge [Keith, 1896, areal geology sheet], 11 miles (17.6 
km.) northwest of Knoxville, Knox County, Tennessee. 
Collected by A. M. Gibson and Cooper Curtice. 
Genus DOLICHOMETOPUS Angelin. 
Dolichometopus ANGELIN, 1854, Paleontologia Scandinavica, pt. 1 (ed. 1878), p. 72. 
Amphoton LORENZ, 1906, Zeitschr. deutsch. geol. Gesellsch., vol. Lvru, pt. 2, p. 75. 
This genus is represented in China by several species. One of them, D. deois 
[plate 21, figs. 13, 13a—d; plate 22, figs. 1, 1a-h, 2, 2a—b], is very abundant in the form 
of dismembered parts of the dorsal shield; no entire specimens are known. Doctor 
Lorenz [1906, pp. 75-76] defines a new genus and species, Amphoton steinmanni, on 
a broken cranidium of medium size and a small cranidium [Lorenz, 1906, plate rv, 
figs. 15-17]. Comparing his type specimens directly with the type specimen of 
D. deois shows them to be identical. The test in some specimens is minutely punc- 
tate and on others it appears to be smooth and without puncte. 
Dolichometopus alceste Walcott. 
Plate 22, Figures 3, 3a—b. 
Dolichometopus alceste WAt,COTT, 1905, Proc. U. S. Nat. Mus., vol. xxrx, p. 94. (Species described as 
below.) 
This species occurs at the same locality as D. deois [p. 216], but not in the same 
bed of limestone. It differs from D. deots in having a much more convex glabella 
with nearly parallel sides. Glabella marked by a posterior pair of furrows, extend- 
ing inward and backward so as nearly to cut off a small, subtriangular lobe at the 
base of the glabella, also three pairs of short, faintly impressed furrows that extend 
in at right angles to the side of the glabella; occipital furrow and ring unknown; 
dorsal furrow shallow, but well defined. 
Fixed cheeks very narrow; they slope down into the strong furrow just within 
the narrow palpebral lobe and anteriorly slope down to the frontal limb; the rim of 
the palpebral lobe crosses the narrow front cheek, forming a very short palpebral 
ridge; frontal limb short, nearly flat. 
The exterior surface, under a strong lens, shows a few fine, scattered punctules. 
The inner surface of the frontal limb, where exposed by a breaking away of a portion 
of the shell, is strongly punctate. 
The only specimen of the glabella of this species has a length of 12 mm., witha 
width at the palpebral ridges of 8 mm.; the frontal limb has a length of 1.5 mm. 
Formation and Locality —Middle Cambrian: (C4) In limestone nodules at the 
base of the lower shale member of the Kiu-lung group [Blackwelder, 1g07a, pp. 
37 and 40 (second list of fossils), and fig. ro (bed 4), p. 38], 3 miles (4.8 km.) south- 
west of Yen-chuang, Sin-t’ai district, Shan-tung, China. 
Collected by Eliot Blackwelder. 
