cxliv 



THE PALEONTOLOGY OF MINNESOTA. 



modesta, 1081. 



mundula, 999, 994, 1002. 



numeria, 1000, 994,999. 



obtusa, 997. 



persimilis, 998, 994, 997, 999. 



progne, 996, 995-998, 1002. 



rugata, 999, 994. 



subconcava, 999, 994, 998, 1002. 



vitruvia, 995, 996, 997. 

 Lithodomus, 485. 

 lAthophaga, 485. 

 Litorinidse, 1064. 

 Lituites, 764, 811. 



lituus, 764*, 811. 



undatus var. occidentals, 811. 

 Lobes, frontal, 697; lateral, 697; palpebral, 697. 

 Loligo, 761. 

 Longicone, 763. 



Lophospira, 960, 847, 925, 933, 938, 945, 947, 949, 950, 

 951, 952, 953, 961, 962, 964, 965, 967, 970, 971, 975, 

 977, 984, 987, 989-991, 1005, 1010, 1013, 1014, 1030, 

 1046, 1051, 1053, 1054. 



abnormis, 974, 962, 975. 



acuminata, 973. 1030. 



ampla, 981, 951, 962, 974, 976, 979, 981, 983. 



aspera, 963. 



augustina, 987, 963, 988, 1018, 1019. 

 var. minnesotensis, 988. 



bicincta, 964, 950, 961. 



bicincta section, 963, 948, 952, 953, 961, 977. 



bicincta subsection, 963. 



bowdeni, 986, 951. 962, 963, 976, 987, 988, 1014. 



bowdenl subsection, 5K53. 



cassina, 991. 



centralis, 979, 962, 977, 981. 



cicella, 963. 



cicelia subsection, 9O3. 



concinnula, 966, 961, 963, 967. 



conoidea, 976, 988. 



conradana, 979, 963, 980. 



decursa, 975, 962, 976. 



elevata, 977, 962, 976, 978. 



estella, 963. 



extenuata, 963. 



flllmorensis, 967, 961, 963, 985. 



gothlandica, 963. 



hellcteres, 970, 963, 972. 



var. wisconsioensis, 971. 



helicteres subsection, 963. 



hoi mi subsection, 9t$3. 



humilis, 968, 961, 963, 989. 



imbricata, 950. 



imbricata subsection, !>(>.'{. 



knoxvillensis, 989, 9:>2, 953, 962, 964, 990, 991, 

 1047. 



labrosa, !)">2. 



laqueata, !;:!. 



lirata, 988, 989. 

 var. robusta, 989. 



inacrospira, 963. 



major, 963. 



medialis, 973, 962, 974, 975, 981, 982, 984. 

 var. burgitH'n-iis, 974. 

 !62. 



multigruma, 978, 962, 977, 979, 981, 1081. 



notabilis, 99O, 950, 951, 962-968, 970, 980, 982, 

 984, 985, 1005, 1008. 



obliqua, 965, 963, 966, 980. 



oweni, 98O. 962, 974, 976, 979-984, 987. 



peracuta, 976. 962, 978. 



perangulata, 972, 952, 962, 973-977, 979, 981, 

 982, 985. 



perangulata section, 962, 980. 



perangulata subsection, 962. 



perforata, 9X4, 963, 965, 985. 



perlamellosa, 985, 963. 



procera, 968,961. 



producta, 975, 963, 976. 



pulchella, 982, 962, 966, 973, 974, 983-985. 



pulchra, 982. 



quadrisulcata, 967, 963. 



robusta, 989. 



robusta section, 9<>3. 



saffordi, 982, 962. 



serrulata, 968, 950, 960, 963. 970-972. 



serrulata subsection, 963. 



sororcula, 962, 974. 



spironema, 983, 963, 966, 982. 984. 



sumnerensis, 978, 962, 965, 976. 



tenuistriata, 983, 963, 966, 982, 984. 



trochonemoides, 99O, 952, 962, 964, 991, 1047 



trochonemoides section, 964, 962, 990. 



tropidophora, 1081, 962. 



tubulosa, 950, 963. 



tubulosa subsection, 963. 



ventricosa, 980. 



Lower Silurian Cephalopoda of Minn., 760-812; 

 Gastropoda of Minn., 813-1081; Lamellibranchi- 

 ataof Minn., 475-628; Ostracoda of Minn., 629- 

 693; trilobites of Minn., 694-759. 

 Loxonema, 1079. 

 Loxonematidse, 1079, 1069. 

 Loxop'ocus, 963. 

 Lucinidae, 487. 

 Lunule, 478. 

 Lunulicardium, 486. 

 Lutraria elliptica, 479*. 

 Lyriopecten, 485. 

 Lyrodesma, 6O8, 486, 578, 579, 612. 



acuminatum, 6O9, 610, 612. 

 var. intermedium, 610, 611*. 



cannonense, 61O, 612. 



cincinnatiense, 610. 



major, 611*, 479*, (112. 



planum, 609. 



poststriatum, 010. 



subplanum, 610. 

 Lyrodesmida;, 608, 486, 628. 



Maclurea, 1O38, 815, 810, 1031, 1037, 1041. 

 bigsbyi, 1039, 1038, 1040. 



var. dixononsis, 1O39. 

 crassa, 1O4O. 



var. macra, 1O41. 

 crenulata, 1038. 

 cuneata, lots, 1041. 

 depressa, 1O4O. 



