March, 1908.] Devonian Section on Ten Mile Creek. 275 



Species Columbus Delaware 



Strombodcs alpi}icnsis Rom x 



Zaphrentis cornicnla (Les.) x 



Zaphrentis simplex H x 



Dolatocriniis sp ' x 



Geunacocrinus {'^) sp x 



JMcgistocriniis spinulosis (?) Lyon x 



Cystodictya gilbcrti (Meek) x 



Fcncstclla emaciata (?) H x 



Fistulipora sp x 



Lichcnalia sp x 



Orthopora bipiiuilata (?) (H.) x 



Rcteporina striata (?) H x 



Stictoporina plumea (H. and S.) x 



Ambococlia umbonata Con x 



Atrypa reticularis (Linn.) x x 



Atrypa spinosa H x x 



Camarotoechia horsfordi H x 



Centronella ovata H x 



Chonetcs arcuatus (?) H x 



Chonetcs coronatus (?) (Con.) x 



■CJionetes heiuispliericus H x 



Chonetcs lepidus H x 



Chonetes ■mucronata (?) H x 



Chonetcs scitula H x 



Chonetcs vicinus (Cast.) x 



Cryptonella planirostris H x 



Cyrtina hamiltonensis H x x 



Dalmanclla lepida (?) H x 



Ennclla lincklacni H x 



Gypidula sp x 



Leiorhynchus laura (Bill.) x 



Xucleospira concinna H x x 



PJwlidostrophia iowaensis (Ow.) x x 



Productella spintdicosta H x 



RhipidomcUa vannxemi H x x 



SchizopJioria striatula Schl x 



Spirifer acuminatus (Con.) x 



Spirifer audaculus (Con.) • . x 



Spirifer gregarius (CI.) x 



Spirifer macrus H ? x 



Spirifer maiiui H x 



Spirifer pennatus (Atw.) x 



Spirifer varicosus H x 



Spirifer sp x 



Stropheodonta concava H x 



Stropheodonta deinissa (Con.) x x 



Stropheodonta liouisphcrica H x 



Stroplicodoiita per plana (Con.) x x 



Strophonella ampla H x 



Tropidoleptus carinatus (?) (Con.) x 



Actinopteria boydii H x 



Actinopteria descussata H x 



Aviculopecten sp x x 



Conocardium cuneus (Con.) x 



Lcioptera dekayi (?) H x 



Limoptera macroptera Con x 



Limoptera pauperata H x 



