Lint of Lower Silurian Fossils, Cincinnati Group. 85 



Class Gasteropoda. 



I. Older Pkosobkanchiata. 



Family MuricidcB ; Genus Fusispira. 



II. Order Rhiphidoglossa. 



Family Belter ophontidce ; Genera Bellerophon. Buoania, Carin- 



aropsis, C'yrtolite.s, Microceras. 

 Family Pleurotomariidos ; Genera Murchisonia, Pleurotomaria, 



Trochonema, Raphistoma. 

 Family Turbinidce ; Genera Cyclora, Cjiclonema.^ Holopea. 

 Class Pteropoda. 



III. Order Thecosomata. 



Family Conulariidoi ; Genus ComUaria. 

 Class Lamellibranchiata. 

 Division x\_siphonata. 



Family Ambonychiidoi ; Genera Amhonychia, Anomalodonta. 



Famil}' J. re iV/rc ; Genera 31 eg ambonia, Tellinoniya, Cyrtodonta. 



Family Trigoniidm ; Genus Lyrodesma. 

 Division Siphonata. 



Family Cyprinid(H ; Genera Gycloconcha, Cypri cardites, Ciido- 



phorus. 

 YsivciWy Anatanidoi ; Genus Cuneamya. 

 Family Fteriniidw ; Genus Pterinea. 

 Family' Mytiliida; ; Genera Anodontopsis, Modiolopsis. 

 Famil}'' Orthonot.ida' ; Genera Orthonotjt, Orthodenma, Sedg- 



vnckia. 

 Family CaritiomorpJiidrp; Genus Cardiomorpha. 



MOLLUSCOIDA. 



("lass Bkachiopoda. 



I. Order Arthropomata. 



Family Orthidm ; Genus Orthis. 

 Family BhynchonelUdo' ; Genus Bhynchonella. 

 Family Spiriferido', ; Genera Trematospira, Zygospira. 

 Family Strojjhovienidfi' : Genera Strophomena, Streptorhyn- 

 chiis, Leptnma. 



II. Order Lyopomata. 



Famil}^ Craniidcc ; Genera Crania, Schizocrania, Pholidops. 



Family Discinido' ; Genera Discina, Trematis. 



Family Lingnlidn- ; Genera Lingula, JAngrdella, Leptobvliis. 



