40 SAN DIEGO SOCIETY OF NATURAL HISTORY 
GURICH (Georg)—Continued 
Bollia sp. 
New genus Polyzgia, type P. symmetrica. 
New genus Poloniella, type P. devonica. 
Bythocypris polaris n. sp. Bairdia devonica n, sp. 
Nachtrage zum Paleozoieum des Polnisschen Mittlegebirges. 
Neuen Jahrb. fiir Mineral Geol. and Palaeont. Beilarge, Band XIII, 1900, pp. 331- i 
388, plates 14 and 15. t 
The author describes several new species of Trilobites, which he illustrates as 
Mlaenus polonicus nov. sp., which he compares with J. parvulus Holm and Panderia 
minima Volborth. Aeglina Kontkieaiczi nov, sp. figure of the pygidium. Proetus 
margaritaceous Giir., fig. in text, P. pyriformis sp. nov., fig. of glabella, P. Michalskii 
Gir, Dechenella pusilla Gir. Beyrichia trigonata Giir. 
——— Jura und Devon Fossilien von White Cliff, Australien, 
Neuen Jahrbuch fiir Min. Geol. and Palaeont. Beilage, Band xiv, pp, 484-539, 
plates 18-20, 1901. 
The author describes a new genus of Lichas as Craspedarges including under it 
one species, (. Wilcanniae Giirich. He also gives figures of Euarges meridionalis 
Frech and EF, granulosus F. A. Roemer. ‘The author uses as subgenera to Lichas the 
following subgenera: 
Ceratages for the preoccupied term Arges Goldf., with L. armatus Goldf. for its 
type. 
Plusiages for Corydocephalus Corda, owing to the uncertainty attached to Corda’s | 
types, Type L. palmatus Barr. é 
Liparges substituted for Corda’s Dicranoymus, type L. simplex Barr. 
Trachylichas name proposed in place of Dicranopeltis Corda, type Lichasscarba 
Beyr. 
Echinolichas Gurich type L. eriopis Hall. 
Metopolichas used for preoccupied name Metopias Kichw., type L. Hubneri Bichw. 
Platopolichas Gurich, type L. avus Barr. 
Platylichas, type Lichas margaritifera Nieszk. 
Dr. Gurich takes Platymetopus Holmi Schmidt as the type of this genus, but it 
should be abandoned for the group, as it was used by Dejean in 1829 for a genus of 
insects. 
Pterolichas for Arctinurus Boltoni. 
Platynotus was used by Conrad in 1838 for the same species, 
Euages for preoccupied term Acanthopyge Corda, type L, Haureri Barr. | 
Leiolichas Schmidt, type L. i/laenoides Nieszk. | 
Homolichas Schmidt, tvpe L. depressus Ang. \ 
Hoplolichas Dames, type L. tricuspidata Beyr. 
fa 
Ceratolichas Hall and Clarke, type L. gryps Hall. 
Conolichas Dames, type L. aequiloba Steinhardt, 
Hemiarges Gurich, type L. Wesenbergensis Schmidt. 
Platymetopus Ang., type L. planifrons Ang. (Amphilichas Raymond). 
Oncholichas Schmidt, type L. ornatus Ang. 
Hall (James). Relations of the eenus Hurypterus. " 
Proc, Am. Acad. Arts and Sci., vol. 4, 1860, p. 353. ) 
——— On the genus Hurypterus. 
Trans. Albany Inst., vol. 4, 1860, p. 280. 
