230 CALIFORNIA ACADEMY OF SCIENCES. 



Palaeozoic notes: New genus of Canibrian 



Trilobites, Mesonacis. 



In Am. Jour. Sci., 3d series, vol. 29, 1885, p. 328, tigs. 



Describes a new genus, McHOiiacix, and substitutes the generic name 

 BailieUa of Matthew for the subgenus SdUeria, proposed by him (Bull. U. 

 S. Geol. Survey, No. 10, 1884). 



Menonaris vermontana Hall, also probably Olenellun hon-elli. 



Second contribution to the studies on the 



Canibrian fauna of North America. 



In Bull. U. S. Geol. Survey, No. 30, 188Q. 



OryclocephaluH n. g. ProtypHu u. g. Lcjurditia troi/ciisis Ford, L. ( 

 argeiita n. sp. Protocaris mamhi Wal. Afjuoslns inter><tricu8 "^hiie, A. 

 nohilis Ford. Microdl-icuK speciosus Ford, J/, mecki Ford, M. lohatus Hall., 

 M. parkerl u. sp. Mcsonac'm vermontana Hall. OhneUus thompsoni Hall, 

 O. amphoides Emmons, O. tddhifjsi Wal., O. r/ilherli Meek. Olenokles nera- 

 dennisMeek, 0. ti/piraUn n. sp., 0. spinoms Wal., 0.'! flagrlcaudus White, 

 0.? marcoui Whitf., O. bevisn. sp., 0. quadricepsK. & W., 0. wahsatchen- 

 slu H. & W. Bathynotm holopyga Hall. Ptychoparla kinrji Meek, P. 

 adamsi Bill., P. teucer Bill., P. viikanns Bill., P. miser Bill., P. quadrann 

 H. & W., P. housensis n. sp., P. piochciisis n. s\)., P.t profipecte7isk Wal., 

 P. trilhieata Emmons, P. .mbcorannta H. & W. Crepicephalus liliana n. 

 sp., C. angusta n. sp. Anoinocarc '! parvum Wal. Oryctocephalus primuK 

 n. sp. Protypus hichcocki Whit., P. senectus Bill. Solenopleura naiia 

 Ford. Bathyuriscua howelli n. sp., B. prodnctiif^ H. A: W. Asaphtxrus 

 wheelcrl Meek. Dopypyge. 



Fauna of tlie upper Taconic of Emmons, in 



Washington County, New York, with one plate. 



In Am. Jour. Sci., 3d aeries, vol. 34, 1887, p. 187. 



LeperdUia dematoides n. sy). Aristozoe troyensis Ford, A. rotunduta n. 

 sp. Microdiscus coniiexus u. sp. Olenoides fordi n. sp. Solenopleiirat 

 ill mid a n. h^)., S.l nana Ford. Conocoryphe trilineata Emmons. Pty- 

 chopariajitchi n. sp., P, ? (siibgeuus?) rlavata n. sp. 



Cambrian fossils from Mount Stephens, Nortli 



West Territory of Canada. 



Am. Jour. Sci., 3d series, vol. 36, 1888, p. 161. 



The author classes the following species under Olenoides: O. nevaden-yi-i, 

 O. marcoui, O. quadriceps, O. wa>ia(chensi<. 



Under the genns Zacanthoides he arranges Olenoidex- tyjiicniix, 0. spino- 

 siis, C. ?ccr?.s- and O. flngricandaius. 



