cxlii 



THE PALEONTOLOGY OF MINNESOTA. 



radiata, 827. 



striata, 827. 



subcarinata, 827. 



Helicotoma, 1O32, 934-936, 938, 994, 1025-1030, 

 1033, 1035. 



declivis, 1O36, 1033. 



eucharis, 1033. 



gorgonia, 1033. 



granosa, 1O35, 1033. 



larvata, 994, 999, 1000, 1033. 



marginata, 1O36, 1029, 1033. 



misera, 1033. 



muricata, 1033. 



maresi, 1033. 



perstriata, 1033. 



planulata, 1O33, 1026, 1029, 1034. 

 var. robusta, 1O33. 



planulatoides, 1O34, 1033, 1035. 



proserpina, 1033. 



serotina, 1033. 



spinosa, 1033. 



subquadrata, 1O34, 1029. 



tennesseensis, 1O34, 1033-1036. 



tritonia, 1033. 



umbilicata, 1O34, 1033, 1035. 



verticalls, 1O35, 1033. 

 Hercyoella, 822, 1069. 

 Heteromyaria, 485, 480. 

 Heteropoda, 819, 813, 817, 844, 845. 

 Hippa, 632. 

 Hipponicharion, 632. 

 Hisingeria, 1028, 1029. 



planorbis, 1028, 1029. 

 Holomeris, 726. 



Holopea, 1OG4, 847, 1008, 1009, 1024, 1043, 1044, 

 1057. 



ampla, 1O65. 1066. 



appressa, 1065, 1067. 



cusstna, 958. 



concinnula, 1O66, 1067. 



excelsa, 1O67, 1066. 



insignis, 1O5, 1068. 



limata, 1O63. 

 nashvillensis, 1OO8. 



obliqua, 831, 1066, 1067. 



oxfordensis, 1O68. 



paludlniformis, 1OO7, 1066. 



parvula, 1O7. 



perundosa, 1067. 



pyrene, 1O7, 1068. 



rotunda, 1O66, 1067. 



similis, lOttO, 1065. 



supraplana, 1OO8, 933. 

 Homalonotus, 704. 



dekayi, 704. 



major, 704. 



vanuxeml, 704. 

 Homolichas, 754. 

 Homomyaria, 486. 

 Hoplolichas, 747, 748, 753, 764. 



bicornit, 148. 



hylaeus, 754. 



proboscidea, 747, 748. 



robbinsi, 747, 498. 



trlcuspidata, 747, 748. 



Horinoceras tenuifllum, 781. 



Hormotoma, 1012, 949, 959, 987, 1008, 1013, 1014, 

 1018, 1019, 1021. 



bellicincta, 1O17, 944, 987, 988, 1014, 1018, 1019. 

 clavicula, 1014. 



gracilis, 1O14, 959, 1015, 1016, 1020. 

 var. angustata, 1O15, 1016. 



goodbuensis, 1O15, 1014, 1016. 

 multivolvis, 1O15, 1016. 

 sublaxa, 1O15, 1016. 

 lebesconteia, 1014. 

 major, 1O18, 1019. 

 salteri 1O16, 959. 



var. canadensis, 1O16. 

 nitida, 1O1G. 

 tennesseensis, 1O16. 

 subangulata, 1O16, 1015, 1020. 

 teretiformis, 1014. 



trentonensis, 1O17, 1014, 1018, 1019. 

 Hypostotna, 698. 



lanthimidse, 934. 

 llionia, 487. 

 Illsenus, 714, 718, 719. 



americanus, 714*, 715, 716. 



arcturus, 718. 



crassicauda, 714-716, 718, 719*. 



herricki, 716, 718. 



indeterminatus, 716*. 



milteri, 718, 720, 721. 



minnesotensis, 71S. 



orbicaudatus, 732. 



ovatus, 716, 718. 



pterocepbalus, 718. 



taunts, 714. 



trentonensis, 718, 719. 

 Inachus planorbis, 10S8. 



sulcutus, 10S8. 



Introduction, to chapter on Cephalopoda, 761; to 

 chapter on Gastropoda, 813; to chapter on tril- 

 obites, 695. 

 Ischyrina, 613, 486, 608, 629. 



plicata, 613. 



winchelli, 613. 

 Ischyrodonta, 521, 486, 523, 564. 



ovalis, 477*. 

 Isoarca, 584. 



lognni, 584. 

 Isochilina, 632, 643, 683. 



cylindrica, 687. 



fabacea, 647. 



labellosa, 637. 



minutissima, 646. 



rectangularis, 683. 

 Isotelus, 700, 705, 706, 710, 713. 



canalis, 7O7*, 705. 



gigaa, 7O1. 702-704, 706, 708. 



gigas-maximus, 7O1, 704, 705*. 



iowensis, 704. 



jacobus, 706. 



maxiraus, 7O1, 702, 703*, 704, 706-708. 



megistos, 701, 706. 



sus;c, 708. 

 Isoxys, 632. 



