Maryland Geological Survey 



131 





SPECIES 



Maryland 



New Jersey 



New York 





, 



Helderberg 



1 



1 



1 



1 



1 



1 



1 



1 

 1 



1 



1 



1 



1 



1 



6 



1 



1 



6 



1 



1 



< 





Keyser 



1 



1 



1 



1 



■8 

 .5 

 1 



1 

 1 



c 



s 





1 

 1 



1 



1 



i 

 •§ 



1 



1 

 1 



1 



1 



1 



1 



1 



1 



1 



.1 



1 



i 



1 



1 



2 



1 



a 



1 







1 





ARTHROPODA—TRILOBITA. -Continued. 



i 















t 



t 



t 



t 



V 



V 





:: 

 :: 



V 



V 



■• 



■• 

 :: 





:; 









:: 



; 



* 



* 



•*• 









* 



342 



Homalonotus vanuxemi Hall .... 

































* 









344 





1 









345 

 346 



Dalmanites aspinosiis W.-l ler 



Dalmanites keyserensis S\v:uiz 





t 

















348 





















r\9 



















350 

 351 

 352 

 353 

 Si4 



Dalmanites (Synphoria) stemmatus Clarke 



Dalmanites (Oorycephalus) dentatus Barrett 1. 



Dalmanites (Ohasmops) anchiops (Greene) 



Dalmanites (Hausmannia) pleuroptyx (Greene) 



•• 



'.'■ 



■■ 





V 



V 



::!:: 

 ..1. . 





:: 





355 



ARTHROPODA-OSTRACODA. 







« 













v 

 v 



t 

 t 



V 

 t 



V 









3^7 



Leperditia gi<'antea Weller . . 



* 1 



■^^H 







t 



















361 



Primitia ? cumborlandica Ulrich & Rissler. . .. . . 



Primitia ? concentrica Ulrich & Basslor 





..i 1 1.. 







.. 











364 



StrppuH irrpffiilaris Jones & Holl 



* 







365 



Halliella ? soniinula vnr. long-a Ulrich & Bassler: : 

 Halliella triplic i( 1 1 Irirh & Bassler. . ..1.. 







t 





V 



367 



^ohmim oiis|,i.l il 1 loiirs' & Holl 













t 



t 



•• 

 :: 



•• 



369 

 370 



Mesomphalus submareinata Ulrich & Bassler. . . ' . . 

 Kloedenia ncarpassi (Weller) ' ; 



*• 



372 



Kloedenia sussexensis (Weller) ; 



* •■ 









* 



375 



Kloedenia flmbriata Ulrich & Bassler 1 . . . . 



? '.'J'.'. 













1 











379 



Bollia curta Ulrich & Bassler 



















380 



BoUia irreffularig Ulrich & Bassler 













' 









':: 





















■■ 









j 







383 



Kloedenella clarkei (Jones) 



V 



* 



• 



V 

 t 



.. .. 

















+ 





386 



Kloedenella tiirfficii var ventrosa U &B '" 







t 





t 



388 



Thlipsiira multipimct,it.T Ulrich & Bassler : . . 



..I t .. 



390 



Octonaria ina;qualis Ulrich & Bassler .. 



Vi:: ::!:: 



.... 









= restricted to Mar3land. 



related species. 



