168 CALIFORNIA ACADEMY OF SCIENCES. 



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

 nandi Kayser, P. cf. zorgensis Kayser, P. sp.? Harpes kayseri n. sp., H. 

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

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

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

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

 scutlcauda n. sp. Harpes foriucatus n. sp. Bronteus brevifrons Barr. 

 Proetus crassirhachis A. Eomer, P. crasslmargo A. Komer, P.frechi n. sp., 

 P. orbitatus'Barr. 



The author considers Phacops fiUcostatus of such distinctive importance 

 that he has proposed to designate the groniJ which it represents by the new 

 generic name of Tropklocoryphe. 



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

 tapering glabella. 



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

 ment de la Mayenne. 



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



Cryphceus mkhellni M&Tie Kouault, C.jonesi n. sp., C . mutueri ix. sp. 

 Homalonotus gervillei DeVern. Leperditia britannka Marie Kouault. 

 Prlmttia Jischeri 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., Augers, 1885, 2 pis. 



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

 glabella. 



Sec. A. Glabella conic, genera Proetus, Phfeton, DecheneUa and Br achy - 

 ■)netopus. 



Sec. B. Glabella pyriform, genera Phillipsella, PhHlipsia and Griffithides. 



Br achy me to pus ouralkiis De Vern, B. maccoyi Portl. DecheneUa halde- 

 manl Hall. Proetus mkropygus Cord. DecheneUa verneuili Barr. Phil- 

 Upsia truncaluta VYiWl., P. colei McCoy. Proetus astyanax Cord., P. ungu- 

 lokles Barr. PhiUipsia ekhwaldi var. mucronata McCoy, P. gemmuUfer 

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

 ce^w Woodw., G. seminiferusVhiW., G. globkepsVhiW. Proetus (Cyphaspis) 

 depressa Barr. PhiUipseUa (PhiUipsia) p}arabola Barr. Proetus (Cyphas- 

 pis) depressa. Cyphaspis haUi Barr. Arethusina konincki Barr. Harpes 

 ungula. DecheneUa verticaUs Burm. Calymene baylei Barr. Conoceph- 

 aUtes emmrichi Barr., C. striatus Emm. PhiUipsia derbyensis Martin. 

 Dalmanites auriculata Dalm. Ogygia buchii Bront., O. desiderata Barr. 

 Asaphus aUenus Barr. Griffithides acanthiceps Wood. Phacops fecundus 

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

 B. teneUus Barr. PhiUipseUa (PhiUipsia) parabola Barr., P. colei McCoy. 



