PORTAGE AND CHEMUNG FORMATIONS OF MARYLAND 335 



Productella lachrymosa Conrad 



Spirifer mesacostalis Hall 



5. marcyi Hall var. 



Tropidoleptus carinaius (Conrad) 



Goniophora sp. 



Cypricardella bellislriata (Conrad) 



C. gregaria (Hall) 



NucuUtes oUongatus Conrad 



Leptodesma sp. 



Bellerophon maera Conrad 



Bellerophon sp. 



Bellerophon n. sp. 



Cyclonema concinnum Hall 



C. hamiltoniae 



Coleolus tenuicinctus Hall 



Euomphalus laxus Hall 



Murchisonia sp. 



Pleurotomaria itys Hall 



Pleurotomaria n. sp. resembles P. rotalia Hall 



Phacops rana Green 



Bryozoa 



Little Orleans. — This section is exposed in the cut of the Western 

 Maryland Railroad. A conglomeratic sandstone occurs just west of 

 the tunnel, bearing the following species: 



Spirifer mesacostalis Hall, abundant 



Camarotoechia congregata (Conrad), abundant 



Nticulites oUongatus Conrad 



Goniophora sp. 



Bellerophon maera Conrad, abundant 



Bellerophon n. sp., approaches B. acutilira Hall 



Murchisonia n. sp., abundant 



The following species were found somewhat below the above hori- 

 zon, by the wagon road above the railroad : 



Cyrtina hamiltonensis Hall 



Pugnax pugnus (Martin) 



Spirifer pennatus var. posterus Hall and Clarke 



Leiorhynchus globuliforme Vanuxem 



Tropidoleptus carinatus (Conrad) 



Productella speciosa Hall . 



Schizophoria striatula (Schloth) 



Stropheodonta demissa Conrad 



Ectenodesma birostratum Hall ' 



