42 



NEW YORK STATE MUSEUM 



contribute to a knowledge of the zonal distribution of the species. 

 Of this condition we know little; probably variations in range 

 are so slight that the effort to ascertain them would produce a 

 result in no way commensurate with the labor involved. 



The student may expect to find in the Onondaga linfestone of 

 this district the following species : 



Fishes 



Macbaeracantbus peracutus New- 

 berry 



M. sulcatus Newberry 

 Onycbodus signioides Newberry 



Crustaceans 

 Acidaspis callicera Hall d Clarke 

 Beyrichia subquadrata Jones 

 Bollia bilobata Jones 

 Cypbaspis diaderoa Hall d Clarke 



C. bybrida Hall d Clarke 

 O. ininuscula Hall 



0. stepbanopbora Hall d Clarke 

 Dalrnanites aegeria Hall 



D. ancbiops Green 

 D. bifidus Hall 



D. calypso Hall 

 D. coronatus Hall 

 D. diurus Ch'een 

 D. lnyrniecopborus Green 

 D. pygmaeus Hall d Clarke 

 D. selenurus Conrad 

 Eurycbilina? reticulata Ulrich 

 Leperditia cayuga Hall 

 Licbas contusus Hall d Clarke 

 L. dracon Hall d Clarke 

 L. eriopis Hall 

 L. gryps Hall & Clarke 

 L. bispidus Hall & Clarke 

 Moorea kirkbyi Jones 

 Falaeocreusia devonica Clarke 

 Pbacops bombifrons Hall 

 P. cristata var. pipa Hall & Clarke 

 Tbaethonides gemruaeus Hall & 

 Clarke 



P. navicella Hall d Clarke 

 Priraitia clarkei Jones 

 Proetus clarus Hall 

 P. crassimarginatus Hall 

 P. folliceps Hall d Clarke 



P. microgernrna Hall d Clarke 

 P. ovifrons Hall d Clarke 

 P. stenopyge Hall d Clarke 

 P. verneuili Hall d Clarke 

 Turrilepas cancellatus Hall d Clarke 

 T. flexuosus Hall d Clarke 



Cephalopods 

 Cyrtoceras cituni Hall 

 Gornpboceras absens Hall 

 G. eximiuin Hall 

 Gyroceras cyclops Hall 

 G. laciniosum Hall 

 G. matberi Conrad 

 G. trivolve Conrad 



G. undulatum Vanuxem 

 Ortboceras geneva Clarke 

 O. inoptatum Hall 



O. profundum Hall 

 O. sceptrum Hall 

 O. tboas Hall 



Pteropods 

 Hyolitbus ceratopbilus Clarice 



H. ligea Hall 



Tentaculites scalariformis Hall 



Gastropods 

 Belleropbon curvilineatus Conrad 

 B. pelops Hall 

 Callonema licbas Hall 

 Diapborostoma lineatum Conrad 

 D. turbinatuiri Hall 



D. unisulcatuni Conrad 

 Euouipbalus decewi Billings 



E. laxns Hall 

 Loxonema laxura Hall 

 L. pexatum Hall 



L. robustum Hall 

 Li. sicula Hall 



Murcbisonia intercedens Hall 

 Naticopsis compacta Hull 



