122 GENERAL INDEX. 



Orthis mac-farlanei Meek HI, 423* 



musculosa Hall 111,410 



oblata Hall 111,371 



' ' perelegans Hall Ill, 374 



' ' planoconvexa Hall Ill, 374 



' ' resupinata Martin VIII, 106 



resupinoides Cox VIII, 106* 



( " richmondi M. Ch.) V.570 



( " rugosa Buch.) 111,426 



striatula d'Orb Ill, 425 



subcarinata Hall Ill, 373* 



testudinaria Dalman Ill, 373 



sp. indet Ill, 410* 



(Orthisina crassa M. & Hayd.) V, i>70 



Orthoceras Breynius 11,286,304; 111,298,318; V.612; VI, 503, 512; VII, 323; VIII, 148 



anellus Conr 111,318* 



angulatum Wahl VI, 504* 



( ' ' annulato-costatum M. & W.) see 0. randolphense. . . , II, 304* 



(Ormoceras) backi Stokes? 111,298* 



crebescens Hall VI, 504 



crebristriatum M. & W VI, 503* 



dilatatum Kon 11,287 



expansum M. & W 11,286* 



jolietense M. & W VI, 505* 



illinoiense Worthen Vn,323; VIII.148* 



laphami M. Ch VI, 504 



lasallense Worthen Vn,324; VIII.149* 



maro Bill 111,320 



medullare Hall? VI.504* 



munsterianum? V.P1. xxiii.flg. 5* 



' ' occidentale Winch VI, 513 



okavense Worthen VII.324; VIII, 149* 



pauciseptum Hall VI, 505 



" randolphense Worthen; this name should replace O. annulato-costatum 

 M. & W., the latter name being pre-occupied. (Bulletin No. 1, page 38.) 



rectum Worthen VI, 504* 



rushense M. Ch V.612*: VIII.149 



striilineatum M. Ch VI.504* 



tenuifllum Hall Ill, 298 



unionense Worthen VI, 505* 



winchelli M. & W VI.512 



sp. indet V, PI. xxx, fig. 5* 



" VI1I.151 



Orthonema Meek and Worthen 11,380; V.590; VIII.145 



' ' carbonarium Worthen VIII, 145* 



conicum M. & W V.590* 



salteri M. & W 11,381* 



Orthonychia Hall 111,385,387 



( " ) pyramidata Hall 111,389 



( " )subplicata (M. & W.) 111,385,457* 



( " )subrecta Hall 111,385,387 



Orthopleurodus St. John and Worthen VII,61,85,190 



carbonarius (N. & W.) VII,177,192* 



convexus St. J. & W VII, 193* 



novimexicanus St. J. & W VII, 195* 



(Orthopora Hall) VHI, 402, 647, 662 



