48 



NEW YORK STATE MUSEUM 



Orthothetes arctostriatus Hall. . c 

 Siropheodonta concava Hall 



S. demissa Conrad c 



S. inequistriata Conrad c 



Fholidostrophia nacrea Hall c 



Leptostrophia perplana Conrad 



Chonetes coronatus Conrad c 



C, deflectus Hall 

 Productella navicella ZfaW 

 P. spinulicosta Hall 



Spirifer angustus Hall r 



S. divaricatus Hall 



S. fiinbriatus Conrad c 



S. andaculus Conrad c 



S. mucTonatus Conrad 

 S. consobrinus d'Orhi^ny 

 Ambocoelia umbonata Conrad... c 



Nucleospira concinna Hall cc 



Trematospira hirsuta Hall 



Meristella haskinsi Hall cc 



Atrypa reticularis Linn6 

 Camarotoecliia dotis Hall 



C. horsfordi Hall c 



(J. prolifica Hall 



C. sappho Hall 



Pentamerella pavilionensis Hall 



Cryptonella planirostris Hall 



C. rectirostris Hall c 



Crinoids 



Platycrimis eboraceus Hall r 



Megistocrinus Ontario Hall r 



Corals 



Zaphrentis halli Edwards d 

 Haiyne c 



Z, simplex Hall 



Cystiphyllum varians Hall 



C. conifollis Hall 



C. americanum Edwards & 

 Haime cc 



Cyathophyllum robustum Hall. . . c 



C. nanum Hall 



C. conatum Hall c 



Amplexiis hamiltoniae Hall 



Heliophyllum halli Edwards d 

 Haime cc 



II. halli var. irregulare Hall c 



H. halli var. reflexum Hall 



n. obconicum Hall 



H. confluens Hall r 



Favosites placenta Rominger .... cc 



F. arbusculus Hall 



F. argus Hall c 



Alveolites goldfussi Billings c 



Pleurodictyum stylopora Eaton 



Striatopora limbata Eaton c 



Canandaig^ua shales proper 

 The beds above the " basal limestones " as they were originally 

 termed by the writer, carry a less profuse fauna. The species 

 assembled in the following list are from more numerous outcrops 

 than the foregoing but, save at the very top of the formation just 

 beneath the Tichenor limestone, they are seldom if ever as abund- 

 ant in any single locality. There are some noteworthy differ- 

 ences in the composition of the faunas of these two parts of the 

 Canandaigua beds, which are below singled out in special lists. 

 The fossils herein are: 



Crustaceans 



Phacops rana Green 



Dalmanites boothi Oreen 



Proetus macrocephalus Hall 



Ostracodes of the genera 



Beyrichia, Eiitomis, Primitia 

 and P>ollia in the lower shales, cc 



Estheria pulex Clarke r 



Worms 

 Spirorbis angulatus Hall 

 Cephalopods 

 Orthoceras exile Hall 



O. nuntium Hall 



O. crotalus Hall 



Gyroceras liratum Hall 

 Tornoceras uniangulare Conrad 

 Bactrites tenuicinctus Hall 



