12 



INDEX. 



mm, Hall, 



I , N'eieil., Hall, 



is, Hall, 

 5te Hall, 



.. Hall, 

 llioi 1 1 in s Eichviald, 



it Hnuilis, Barrett, 



II centcnninli Barrel] Hall, 

 ii Hull, 



\ At uits, Breynius, 



N bucinum, 



\ Ifyiitti, Hall, 



V. EfyaHt, Hall, 



N liratus, 



\ oricns, HoK, 



V oriens, Hall, 

 N pnrallelus, J7oU, 



V parallelus, Hall, 

 N. (Discites) Ammonis, 7/</W 

 \ 7> ) Ammonis, Hall 

 N. t [). i Marcellensis, i Pawn " "' 

 _\' /» flfarceMensis, (Vanuxem) 

 Olfl RAS, l:r,;iniux, 



it ca'lamcn, 



0. cingulum, 



it consnrtale, /7««, 



i >. consortale, Hall, 



<> crotalum, 



Dcedalus, Hall, 



u Dagon, HaH, 



0. 7w..m. Hall, . 



1 1 directum, Hall, 



n directum, Hall, 



0. duramen, 77«//, 



0. duramen, Hall, 



' i exposltnm, Hall, . 



0. expositum, Hall, 



n learns, HffiK, 



" Teams, Hall, 



Indianensis, flaH, 



hulianrn.fis, Hall, 



nuntium, 



O. Ohioonso, 



' ' Pelops. 



0. rudens,^J7a?2, 



0. i ■»•/, n;, Hall.l] 



Hall, 

 Hall 



17, 

 37, 



PAGE. 



36 

 36 



36 

 36 



36 

 6, SI 



6 

 6 



7 

 88 

 38 



37 

 37 

 38 



37 

 37 



38 

 38 



38 

 hs 



39 

 39 

 2a 



•:<t 



29 

 28 



30 



38 



•_'s 

 ■i~ 

 '27 



•;.-. 

 25 

 39 



29 

 31 



31 

 31 

 30 

 2S 

 ■27 

 •.'II 

 38 

 2S 



30, 



t MiiiDi'ii.'i - sceptrum, Hall, . 



0. sceptrum, Hall, 



Ortonia, Nicholson, 



O- conica, Nicholson, 



0. intermedia, Nicholson, 



0. minor, Nicholson, 



I'll UtETUELLA, Hall, . 



V. tencbrosa, Hall, 



Platyostomn Niag.irense, 



Porcellia, 



Sci pula, .... 



Spikorbis, Lamarck, 



Spirorbis, Hall, 



Spirorbis, Miller and Dyer, 



S. Cincinatensis, Miller and Dy 



Strophomena alternata, 



Sri i.ioi.a, Lesueur, 



S. fissurella, Hall, 



S. spii a, Hall, 



Temnociieilus, Meek, 



Tl'.M ai i l.l ll.s. Schlotheim, . 



Tenlaculilea?, Hall, 



T. acula, Hall, 



T. Dexilhca, Hall, 



T. distans, Hall. . 



T. elnngatus, Hall, . 



T clowgatus, Hall, 



T 1 flexuosus. Hall, 



T. gyracanthus, (Eaton) Hall, 



T. gyracanthus, (Eaton) Hall, 



T. incurvus, Shuniard, 



T. irrcgnlaris, Castelnau, 



T. irreyirfaris, Hall, 



T. minutus, //««, 



T minutus, Hall. . 



T. Niagarcnsis, 27aZ2, . 



T. Niagarcnsis. Hall,, var. (Jim 



T. Oswegoensis, Meek ami Wor 



T. reguiarie, Castelnau, . 



T Mchmondensis, Miller, 



T. scalariformis, Hall, . 



T. scalariformis, Hall. 



T. Sterlingensis, Meek anil Wor 



T. tenuistriatus, Meek and ffoi 



Trochoceras? (Gonioceras ?) pamlu 



r. 



(67. 



then, 

 then, 



l, Hall. 

 l)pandxim. Hall, 



Page 

 . 36 



26 



9, 22 



17,23, 24 



17, 23, 



■"'. 8, 9, 



19, 12, 



lierlandia 

 then, . 



. 10, 12, 

 10, 12, 18. 



24 

 7 

 7 

 14 

 37 

 21 

 17 

 :i 

 9 

 17 



7 



38 



27 

 8 

 6 

 6 



19 

 6 

 « 



18 

 5 

 5 



18 

 5 

 5 

 6 

 5 

 5 

 5 



12 

 5 



18 

 6 

 6 



17 



23 

 37 



37 



