1306 



NEW YORK STATE MUSEUM 



Platyceras (continued) 

 dumosum, 1205. 

 gebhardi, 1059, 1204, 1208. 



cf. magnificum, 1059. 

 cf. gibbosum, 1061. 

 lamellosum, 1204, 1208. 

 nodosum, 1204, 1208. 

 pernodosum sp. nov., 1204, 1208. 

 platystomum, 1057, 1204, 1208. 

 reflexum, 1204, 1208. 

 cf. retrorsum, 1057. 



subnodosum, 1057. 

 cf. trilobatum, 1067. 



unguiforme?, 1057. 



ventricosum, 1059. 

 Platyostoma sp., 1191. 



sp.?, 1191, 1208. 



belial, 911. 



lineata, 911. 

 Plectambonites sericea, 1181. 

 Pleurodictyum lenticulare, 1203, x206 

 Pleurotomaria?, 1140. 

 Pleurotomaria, 912-13. 



sp. 1117, 1119, 1127. 



capillaria mut. pygmaea, 912-13. 

 explanation of plate, 1246. 



itys mut. pygmaea, 913. 

 explanation of plate, 1246. 



subdepressa, 1119, 1120, 1123. 1126, 

 1127, 1128, 1133, 1134. 

 Pohlman, cited, 1103, 1108. 

 Point Gratiot shales, exposures, 1029. 

 Poleumita cf. crenulata, 1117, 1127, 



1128. 

 Pontobdellopsis, 1234. 

 Pope Hollow conglomerate, 976, 977, 



987. 

 Port Ewen (Kingston) beds, 1063-68; 



thickness, 1034; fauna, 1197; ex- 

 posures near Rondout, 1193-97, 



1221, 1222, 1223, 1225. 

 Port Ewen and Oriskany beds, limit 



between, 1200. 

 Port Ewen and New Scotland beds, 



resemblance between, 1196. 

 Portage formation, upper boundary, 



853 ; between the Genesee valley and 



Lake Erie, stratigraphy of, 1000-29; 



exposures, 1007, 1010, 1011, 1012, 



1013, 1015, 1018, 1019, 1029. 

 Portage sandstones, thickness, 1010. 



Portage shales, 853. 



Portage time, geographic provinces 



during, 866. 

 Portland shales, exposures, 1029. 

 Potsdam sandstone, sedentary impres- 

 sion of the animal whose trail is 



known as Climactichnites, 959-66. 

 Pottsville beds, 982-84, 986. 

 Prismodictya choanea, 993. 



prismatica, 993. 

 ProducteUa, 907, 1020, 1027. 



costatula, 992. 



lachrymosa, 992, 993. 



onusta, 992. 



speciosa, 992. 



spinulicosta, 907. 

 mut. pygmaea, 907. 



explanation of plate, 1242. 

 Proteus sp.- undet., 1118, 1128, 1144, 

 1151. 



sp.? ; 1191, 1208. 



conradi, 1208. 



pachyderm atus, 1173. 



protuberans, 1188, 1191, 1208. 

 Protonympha salicifolia, 1237. 



explanation of plates, 1292-94. 

 Protospongia, 938. 



sp., 937. 



fenestrata, 938, 952. 

 Pseudoniscus roosevelti, 868, 1081. 

 Pterinea sp., 1085. 



communis, 1164. 



emacerata, 1085, 1151, 1173. 



securif ormis, 1117, 1119, 1120, 1122, 

 1127, 1128. 



subplana, 1117, 1127, 1128, 1159, 

 1173. 



subplana?, 1133, 1134. 



subrecta, 1117, 1127, 1128. 



(?) (textilis), 1056. 

 Pterinopecten crenicostatus, 993. 



neptunus, 993. 



proteus, 1203, 1208. 



suborbicularisi , 994. 

 Pteronites?, 993. 



Pterygotus, 1081, 1087, 1088-90, 1102- 

 3, 1104-8. 



sp., 1104. 



explanation of plate, 1286. 



banksii, 1088, 1103. 



