BIBLIOGRAPHY OF PALAWOZOIC CRUSTACEA 125 
WALCOTT (Charles D.)—Continued 
Genus Solenopleura Angelin, 1854. 
Walcott figures pl. 17, figs. 12, Salenopleura holometopa Angelin for comparison, and 
describes as new the following species: 
Solenopleura agno Walc., S. beroe Walc., 8. chalcon Wale., S. intermedia Walc., S. 
pauperata Walc., S. sp. undt. 
Genus Chuangia Walcott, 1911. Genotype Ptychoparia batia Walc. 
The genus proposed for a group of Upper Cambrian Trilobites in which the cephalon 
has a truncato-conical or subquadrangular glabella; a narrow concave frontal limb 
and smooth test. 
Three species are described: Chuangia nitida, C. mais and C. framenta. 
Genus Menocephalus Owen, 1852. 
Doctor Owen proposed this genus for Trilobites having a highly convex hemispherical 
glabella, with a narrow border and broadly rounded front cheeks, tumid surface pus- 
tulate. 
The genotype of Menocephalus was destroyed by fire many years ago. 
Dr. Walcott does not include in the genus the species described by Billings under 
the names of Menocephalus sedgwicki and M. glabosus, which he refers to Soleno- 
pleura, and remarks that M. salteri Devine, is the tvpe of an undescribed genus. 
The author describes Menocephalus abderus, the Solenopleura abderus Walc., 1905, 
M. acanthus Wale. (Solenopleura acantha Wale. 1905), M. acerius Walc., M. acidalia 
(Solenopleura acidalia Walc., 1905), M. acis Walc. and M. admeta Walc., M. agave 
Walc., M. depressus Wale., M. sp. undt. 
Genus Levisia Walcott. Genotype 1 graulos agenor Wale. 
In this genus the cranidium is strongly convex, glabella truncato-conical, tumid and 
with only a trace of glabella furrows; occipital ring narrow, at the sides broadening 
rapidly toward the center, convex and extending backward into an obtuse spine; 
frontal limb narrow; fixed cheeks tumid, one-half as wide as the glabella and with 
small palpebral lobes midway of their length; postero-lateral limbs rather short and 
marked by deep, narrow intermarginal posterior furrow, that separates a narrow, 
rounded margin. The author describes Levisia adrastia Wale. (under the genus of 
Menocephalus Walc., 1905), Levisia agenor Wale. under the genus Agraulos Walec., 
1905) and Levisia nasuta Walc., Lewvisia richardsoni Wale. The last two species are 
from the Upper Cambrian at Point Levis, Canada. 
Genus Ptychaspis Hall, 1863. Genotype Dikelocephalus miniscoensis Owen. 
The author describes from China, Ptychaspis baubo Walc., P. bella Walc., P. brizo 
Walc., P. causu Walc., P. cadmus Walc., P. calchas Walc., P. callisto Walc., P. calyce 
Walc., P. campo, P. ceto Walc. and P. sp. undt. Walc. 
Genus Anomocare Angelin, 1854. Genotype 4. laeve Ang. 
The author describes fourteen species under this genus, all new except three species, 
which he refers to Dames. 
Anomocare alcinoe, A. convexa, A. daulis, A. ephori, A. flava, A. latelimbatum 
Dames, 4. lisani, A. megalurus Dames, described under the genus Liostracus; 4omo- 
care minus Dames, A. nereis Walc., described in 1906 under the genus Ptychoparia, 
A. subquadratum Dames (Concephalus subquadratus Dames), and Anomocare sp. undt. 
several forms. 
Genus Anomocarella Walcott, 1905. Genotype 4. chinensis Walcott. 
This genus differs from Anomocare in the absence of glabella furrows and the 
presence of a relatively narrow flattened frontal rim, etc. 
The author places twenty-two species under this genus. 
Anomocarella alhion, A. baucis, A. bergioni, A. bigsbyi, A. biston, A. butes, A. 
chinensis, A. comus (Ptychoparia comus Walc., 1906), 4. hermias, A. irma, A. macar, 
