in mat an 
gh rer eae 
BIBLIOGRAPHY OF PALAOZOIC CRUSTACEA t 
LINDSTROM (G,)—Continued 
Nileus, Symphysurus,? Ogygia. c—Calymmene, Homalonotus. d—Cheirurus pro 
parte. 
Group 2—The whole maculae is of a spongious or irregularly polyhedric structure 
showing prisms in vertical sections. Asaphus, Isotelus, Megalaspis, Ptychopyge, Niobe? 
Megalaspides? Barrandia, Illaenus Lichas, Trochurus? Platymetopus Encrinurus also 
probably belongs to this group. 
Group 3—Maculae with well-developed globular lens on the interior third of the 
maculae; the blank part of the maculae without any structure. In such species as 
Cheirurus spinulosus the whole maculae covered with lenses. Bronteus, Cheirurus 
Spinulosus, 
Group 4—The maculae form sunk pits, with smooth bottom. Structure unknown. 
Dalmanites. 
Group 5—The elongate, straight maculae, carrying on their innermost point from 
3 to 5 diminutive segregate ocelli, situated on a clear, white patch. Proetus. ‘These 
ocelli have not been observed on the, related genera Cyphaspis, Phaetonides, Phillipsia 
and Griffithides, but they may be preliminarly ranked here in consequence of their 
close conformity. 
Group 6—The maculae have in this group been reduced to a pair of tiny ocelli, 
situated high up on the hypostoma, near its anterior margin. Phacops, Acaste. 
Loomis (I. B.) The dwarf fauna of the pyrite layer at the horizon 
of the Tully limestone in Western New York, 
Bull. New York Mus., No. 69, pp. 892-920, plates iv, 1903. 
Cryphacus Boothi var. calliteles Greene, Beyrichia dagon Clarke. Entomis prosenhina 
n. sp. ; 
Lorenz (Th.) Beitriige zur Geologie und Palwontologie von Ostasien 
unter besonderer Berticksischtigung der Provinz Schantung, in China. 
2 Palaeontologischer Teil. 
Zeitschrift der Deutsch, Geol. Ges., 1906, pp. 67-122, with 3 plates and 55 figures 
in text. 
The author attaches classificatory importance to the minute structure and super- 
ficial ornamentation of the test, which has led him to change the generic allocation of 
many well known species, and to institute many new genera. 
Lorenz, on account of the different structure or ornamentation of the test, divides 
the group Conocephalites into two genera: Conocephalina and Concephalites, but the 
type C. Emmrichi Barr. of the latter he puts into the former, thereby making needless 
confusion. Conocephalina Brégger has as its type C. ormata Brogger, and the author 
has referred to it several English species placed by Salter in Conocephalites, such as 
C. invita. 
The author illustrates Pfychoparia striata Em, and places the genus Solenopleura as 
a synonym to Ptychoparia, figuring Solenopleura brachymetopus Angelin. 
The author remarks in regard to the new genus Lioparia, that it has medium-sized 
eyes, in common with both Ptychoparia and Liostracus; likewise the deep dorsal fur- 
row of Ptychoparia. In, relation to the shell structure and the flat selvage, it is on 
the side of Liostracus. On careful consideration one must admit that Liostracus is in 
closer relation to the species Lioparia, than that of the genus Ptychoparia, 
He refers Conocephalites minutus Hall to the genus, and uses Lioparia latelimbatum 
Dames, with one new species, L. blautoeides,,as the type of the genus. 
Trachyostracus new genus: Is distinguished by medium-sized wide-apart eyes, flat 
selvage and little or no dorsal furrows. In its outer form it is not to be distinguished 
from Liostracus. ‘The difference in the genera lies alone in the different shell struc- 
