CANANDAIGUA AND NAPLES QUADRANGLES 



49 



Ptcropods 



Styliolina fissurella Hall c 



Hyolithus aclis Hall r 



Gastropods 



Bellerophon leda Hall c 



B. iyra Hall r 



B. acutilira Hall r 



Cyrtolites mitella Hall r 



Tlatyceras syinnietricum Hall... c 

 P. erectum Hall 

 P. conicuni H all 

 P. attenuatuin Hall 

 P. thetis Hall 



P. bucculentuin Hall c 



P. carinatum Hall c 



P. ecbinatmn Hall 



Pleurotomaria capillaria Conrad, c 



P. itys Hall c 



P. trilix Hall 



Loxonema delpbieola Hall 



Diapborostoina lineatum Conrad, cc 

 Cycloneuia bamiltouiae Hall 

 G. multilira Hall 

 Euonipbalus rudis Hall 



Murcbisonia turricula Hall r 



Macrocbeilus hebe Hall 



Lamcllibranchs 

 Mytilarca oviformis Conrad 

 Macrodon bainiltoniae Hall 

 Microdon bellistriatus Conrad 

 Bucbiola balli Clarke 

 Cypricardinia indenta Conrad 

 C. pygmaea Hall 

 Grammysia arcuata Hall 

 Goniopbora acuta Hall 

 Modiomorpba coroplanata Hall 

 M. concentrica Conrad 

 M. macilenta Hall 

 Nuculites oblongatns Conrad 

 Aviculopecten princeps Conrad 

 Palaeoueilo constricta Conrad 

 P. eniarginata Conrad 

 P. fecunda Hall 

 P. plana Hall 

 P. tenuistriata Hall 



Brachiopods 

 Craniella bamiltoniae Hall 



Rhipidomella penelope Hall c 



R vanuxemi Hall cc 



Ortbotbetes pandora Billings 

 Stropbeodonta concava Hall 



S. inequistriata Conrad cc 



S. junia Hall c 



Pbolidostropbia nacrea Hall 

 Leptostropbia perplana Conrad., cc 



Chonetes coronatus Conrad c 



C. lepidus Hall 

 C. deflectns Hall 

 C. scitulus Hall 

 Productella navicella Hall 

 P. tnllia Hall 

 Spirifer angustus Hall 



S. fimbriatus Conrad c 



fc. granulosus Conrad c 



S. audaculus Conrad 

 S. marcyi Hall 



S. inucronatus Conrad c 



S. consobrinus d'Orbigny 

 Ambocoelia umbonata Conrad... cc 



A. praemnbona Hall 

 Gyrtina bainiltonensis Hall 



Nucleospira concinna Hall cc 



Trematospira birsuta Hall c 



T. nobilis Hall 

 Trigeria lepida Hall 

 Meristella baskinsi Hall 



Atbyris spiriferoides Eaton c 



Gainarotoecbia congregata Con- 

 rad 



G. sappbo Hall 



Liorbyncbus multicosta Hall. .. . r 

 L. quadricostatus Yanuxem r 



Tentanierella pavilionensis Hall., c 

 Gryptonella rectirostris Hail 

 Terebratula li'ncklaeni Hall 

 Tropidoleptus carinatus Conrad. . cc 



Crinoids 



Xucleocrinus lucina Hall 

 Dolatocrinus glyptus Hall 

 D. liratus Hall 



On comparing these lists of species we find that while they are 

 essentially homogeneous there are certain characteristic 

 differences. 



