168 CALIFORNIA ACADEMY OF SCIENCES. 



minuscula Nov. and rhenana Nov., P. fecundis Barr., P. cf. ferdi- 

 7iandi Kayser, P. cf. zorgensis Kayser, P. sp.? Har.pes kayseri n. sp., H. 

 reticulatus Cord. Lichas (Arges) haueri Barr., L. (Arges) maureri n. sp. 

 Acidaspis pigra Barr., A. {Trajjelocera) vesiculosa Beyr. Cheirurus (Crota- 

 locephalus) cordai Barr. Bronteus speciosus Corda., B. dormitzeri Barr. var. 

 applanata. Harpes montagnei Cord., H. reticulatus Cord. Cyphaspis 

 ■scuticauda n. sp. Harpes fornicatus n. sp. Bronteus hrevifrons Barr. 

 Proetus crassirhachis A. Komer, P. crassimargo A. Rtimer, P . frechi n. sp., 

 P. orbitatus Ban . 



The author considers Phacops filicostatus of such distinctive importance 

 that he has proposed to designate the group which it reiDresents by the nevr 

 generic name of Tropidocoryphe . 



This species is remarkable for its broad tlabellate pygidium and rapidly- 

 tapering glabella. 



Oehlert (D.) Sur les fossiles devoniens du deparie- 

 ment de la Mayenne. 



In Bull. Soc. Geol. France, 3d series, vol. 5, 1877, p. 578, pi. 9. 



Cryphceiis michelini Marie Eouault, C.jonesi n. sp., C. munieri n. sp. 

 Homalonotus gervillei DeVern. Leperditia britannica Marie Koiiault. 

 Primitia fischeri n. sp. 



Description de Goldius gervillei Barrande. 



In Bull. Soc. d'Etudes Sci., Angers, 1885, 1 pi. 



Etudes sur quelques Trilobites du groupe des 



Proetidse. 



In Bull. Soc. d'Etudes Sci., Angers, 1885, 2 pis. 



The author divides the Proetidse into two divisions on the form of the 

 glabella. 



Sec. A. Glabella conic, genera Proetus, Phceton, Dechenella and Brachy- 

 metopus. 



Sec. B. Glabella pyriform, geneva, Phillipsella, PhilUpsia and Griffithides. 



Brachymetopus ouralicus De Vern, B. maccoyi Portl. Dechenella halde- 

 wicuii Hall. Proetus micropygus Cord. Dechenella verneuili Ban . Phil- 

 Upsia triincaluta'Ph.iW., P. colei McCoy. Proetus astyanax Cord., P. U7iyu- 

 loides Barr. PhilUpsia eichwaldi var. mucronata McCoy, P . gemmulifer 

 Phill. Proetus intermedius Barr., P. ryckholii Barr. Griffithides acanthi- 

 ceps Woodw., G. seminiferusFhill., G. globice2)s Thill. Proetus [Gyjihaspis) 

 depressa Barr. Phillipsella [PhilUpsia) parabola Barr. Proetus (Cyphas- 

 pis) depressa. Cyphaspis halli Barr. Arethusina konincM Barr. Harpgs 

 unc/ula. Dechenella verticalis Burm. Calymene baylei Barr. Conoceph- 

 alites emmrichi Barr., C. siriatus Emm. PhilUpsia derbyensis Martin. 

 Dalmanites attriculata Dalm. Ogygia buchii Bront., 0. desiderata Barr. 

 Asaphus cdienus Barr. Griffithides acanthiceps Wood. Phacopjs fecundus 

 var. dejener Barr. Asaphus expansus Linne. Bronteus hrongniarti Barr., 

 B. tenellus Barr. PhiUi]>t,ella (PhilUpsia) parabola Barr., P. colei McCoy. 



