166 THE CAMBRIAN AND ORDOVICIAN DEPOSITS OF MARYLAND 



FAUNA OF THE SINUITES BED 



Chambers- 

 burg, Pa. 



5 m. SSW. 

 Chamberb- 

 burg, Pa. 



2 m. S. St. 

 Thomas, Pa. 



3 m. SE. 

 Mercers- 

 burg, Pa. 



Hindia parva Ulrich 



Lingula riciniformis Hall i * 



Leptobolus ovalis n. sp j * 



Gonotreta rusti Walcott 



Dalmanella tcstudinaria (Dalman) var * 



Dalmanella edsoni n. sp ;#. 



Christiania lamellosa n. sp 



Strophomena sculpturata n. sp # 



Leptaena tenuistriata Sowerby var j 



Triplecia (Cliftonia) simulatrix n. sp 



Scenidium ? merope (Billings) 



Cyrtolitina nitidula (Ulrich) \, 



Microceras inornatum (Hall) 



Sinuites cancellatus (Hall) 



Sinuites granistriatus (Ulrich) i # 



Strophostylus textilis Ulrich and Scofield. . 



Cyclora minuta Hall 



Cyclora parvula (Hall) 



Cyclora hoffmanni Miller 



Eccyliomphalus trentonensis (Conrad) 



Coleolus iowensis James 



Conularia trentonensis Hall 



Orthoceras junceum Hall * 



Spyroceras bilineatum (Hall) 



Trocholites ammonius Conrad * 



Eoharpes ottawaensis (Billings) 



Cryptolithus tesselatus Green * 



Triarthrus fischeri Billings 



Triarthrus becki Green . 



Illaenus americanus Billings 



Bumastus trentonensis Emmons * 



Proetus latimarginatus Weller * 



Cyphaspis matutina Ruedemann 



Amphilichas trentonensis (Conrad) 



Calymenc senarii Conrad 



