SUPPLEMENTARY APPENDIX.

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1 Notice Preliminaire sur le Systeme Silurien et les Trilobites de Boheme.’ In this paper avery great number of new species of Trilobites are briefly described, but not figured, andseveral new genera noticed. With a view to prevent over-multiplication of synonyms, and torender this enumeration as complete as possible, we extract the new names given inM. Barrande’s treatise, and refer the reader to the work itself for the descriptions. In thefollowing list the names of the new genera are printed in small capitals.

Aretiiusa Koninckii

Arion ceticephalus

Asaphus ingensnobilis

(Nileus) Bouchardi

Battus bibullatusgranulatusOrionaffinisrex

cuneifer

tardus

Bronteus BrongniartiporosuspustulatusformosusangusticepsZippeiPartschiiHaidingeriambiguus

Caphyra radians

Calymene pulchraparvulaincertadiademataBayleiiBeaumonti

Cheirurus BeyrichiiQuenstedticorda

Conocephalus Emmerichiicoronatus

Cyphaspis Burmeisteridepressacerberus

Dione formosa

Egle rediviva

Ellipsocephalus nanustumidus

Harpes tenuipunctatus

Hydrocephalus Saturnoidescarens

Lichas propinquapalmatasimplexHaueriparvus

Monadina distinctamicron

Odontopleura Prevosti

Dufrenoyi %

mira

Verneuili

Leonhardi

minuta

tricornis

direlicta

Hornesii

lacerata

Buchii

primordialis

Proetus RyckholtiiintermediusdecorusvenustuslepidustuberculatusMyops

inaequicostatus

sculptus

gracilis

Lovenii

Phaeton membranaceusstriatusArchiaci

Paradoxides Linnei

rotundatus

pusillus

Phacops fecundusbullicepstrapeziceps