INDEX. 



483 



Cyrtoceras? abruptum, B., 



C. absent, H., . 



C. Eemulum, 11 , 



C. Alethos, BUI , 



C. altematum, II., 



C. aniplicorno, //. , 



C. anaulatum, Gold/., 



C. annulatum, II , 



C. arcti^ameratum, H., 



C. arcuatum, II , 



C. arcaatum, Stein., 



C. Aristides, Bill., 



C. Billing*!, Salt ,  



C. Bondi, Saff , 



C. br«vicorn«, 3., 



C. camuruin, //. , . 



C. cunceUatum, H, 



C. cancellatum, Bam., 



C. Carrollenso, Worth., 



C. citam, II.,' . 



C. clavatum, II., . 



C. Clilus, Bill , 



C. conlcuin, Owen, 



C. Conradi, H., 



C. con»trictoslriatum, B. 



C- corniculum, Barr., 



C. corniculum. EL, 



C. Corydon, iW2., 



C. curium, it -W., 



C. Pardanus, B., 



C. densum, B , 



C. I>icly-, Hill., 



C dictyuni, White, 



C. dilitatuiii, M.-W., . 



C. dorsatum. Stroll., 



C. eagonium. // ., 354, 356 



C. eugiuin, // , 



C. •xiguiuii, /.'M. , 



C. falx, flitf , 



C. fllusuin, Emm , 



C. I'>t n<"Miin, //., . 



C. Fosteri , // , 



C. fragile. Bill., . 



C. gibbosum, II , 



C. giganteum, McChasn. 



C. Hallauuin, d Orb., 



C. Hector, H , 



C. Herculea (W.-JT), 



C. Hciucri, H.-W., 



C. Huronense, Bill., . 



C. bodoraa, iliU , 



C. Jaion, ff, . 356 



C. Juvenalia, Bill., 



C. lamcllosum, d'A.-de 



C. lamellosum. II., 



C laterals, // . 



C. Ligarius, IHU., 



C. liratuin, If , 



C. loculDsum, B., . 



C. Lucillua, II , 



C. I.vhMii.tcr, Hill., 



C. Mnccoyi, Bill., 



C. macrrmtomiini, B., 



C. magistcr, Mill., 



m 



M8, ITS 



HO, M 



3-24, 

 371, 373, 



378, 374, 

 (18, 323, 



PAGE. 



. '220 

 357 

 389 

 356 

 357, 360, 365 

 357 

 S55 

 355 

 355 

 355 

 355 

 356 

 356 

 357 

 357 

 355 

 S55 

 355 

 S57 

 375 

 357 

 357 

 355 

 Ml 

 355 

 356 

 356 

 357 

 356 

 356 

 354, 363, 361 

 366 

 357 

 356 

 355 

 373 

 356 

 S5fi 

 355 

 355 

 354 

 356 

 357 

 357 

 405 

 355 

 368, 364 

 356 



. 357 

 356 



. 356 

 383 

 IM 

 W 

 M 



m 



357 



354, 356, 364 

 356 



m 

 na 

 w 

 mi 

 in 



3-0 



I, 372 



318, 344, 346 

 356 



381, 



Cyrtoceras marginale, Conr., 



C. marginale, Phill., 



C. Massiense, Saff. , 



C. MatheH, Conr., 



C. maximum, Coar., 



C. Metellus, BUI., 



C. metula, B., 



C. Missisquoi, Bill., . 



C. morsutu, B., 



C. mutticameratum, 3., 



C. Myrice, H.-W., 



C. Keleus, B., 



C. Ohicnse, Meek, 



C. Orcas, B., . 



C. Orestea, Bill , . 



C. Orion, II 



C. Or.des, BUI., . 



C. Postumiue, BUI., . 



C. pusillum, B., . 



C. regulars, BUI., 



C. rigid um, 3., 



C. Rockfordense, Winch., . 



C. sacculus, M.-W., 



C. simplex, BUI., 



C. siuuatuin, Bill , 



C. Stoaease, Saff , 



C. suhannuialuni, d'Orb., 



C. subarcuatum, d Orb., 



C. subcancellalum, H., . 



C. Bubrectum, H., 



C. eubuu-liiiiatum, Bill., . 



C. 6urgcas, Barr., 



C. Syphax, BUI., . 



C. teuuistriatum, H. , 



C. transversum, II., 



C. Trentonense {Emm.), 



C. trivolvis, Conr., 



C. undttlatum, H., 



C. undulatum, Vanux., . 



C. unicorne, Winch., 



C. Vallandighami, Mill., 



C. ventricosum, Mill., 



C. Wbitneyi, B., . 



C. (Gomphoceras?) formosum 



C. (GomphoceraB) metula, B., 



C. (Gyroceras) cugenium, B., 



Ctbtolites, Conrad, . 



C. ? mitella, B., 



C. pilcolus, B., 



C. (Cyrtonella) mitella, B„ 



C. (Cj'rtonella) pileolus, B., 

 Cyrtonella, Ball, 

 Cysth-hyllum, Lonsdale, 

 Dalinanites A'.^aviit, II., . 



D. anchiopi, B, . 

 D. Boothi \Qreen), 

 D. Calypso, a'., . 

 D. Helena, B., 



D. myrmecophorus (Green), 



D. Pleione, H., 



D. selenurus (Eaton), 



DEMTALIUM, Linnaus, 



D. aciculatum, B., 



D. anaulatiim, Sandb., 



