132 



INDEX 



Hngula, 82 



pennsylvanica, 84 

 Burnetidae, 79 



butleri, Ellipsocephaloides, 66 

 buttsi, Cheilocephalus, 36 

 Bynumia, 50, 52, 57, 58, 60 



arguta, 53 



elegans, 52 



eunius, 52 



(?) modesta, 55 



mollis, 56 



(?) producta, 56 



rangerensis, 55 



robsonensis, 54 



sawbackensis, 55 



sulcata, 54 



venusta, 54 



walcotti, S3 

 Bynumiella, 57 



briscoensis, 57 



(?) oklahomensis, 58 



typicalis, 57 

 Bynumina, 58 



caelata, 58 



missouriensis, 59 



caelata, Bynumina, 58 



Talbotina, 107 

 Calyptomma, 37 



typicale, 38 

 Camaraspis, 42 

 canadensis, Coosia, T}) 

 Candida, Talbotina, 107 

 carus, Ellipsocephaloides, 65 

 castlensis, Taenicephalus, 106 

 cava, Burnetia, 83 

 Chariocephalus, 2, 3, 4 



affinis, 8 



agrarius, 8 



angustatus, 9 



badgerensis, 12 



bellus, 6 



bulla, 7 



burlingi, 12 



gracilens, 9 



magnus, 11 



mentis, 10 



peloris, 5 



tenerus, 5 



teres, 7 



tumifrons, 3, 25 



ulrichi, 11 



wichitaensis, 10 

 Cheilocephalus, 35 



buttsi, 2)(^ 



stcroixensis, 35 



texanus, 35 



wichitaensis, 35 

 Cholopilus, 36 



(?) albertensis, 37 



nevadensis, 36 

 clara, Drumaspis, 2>2) 

 comes, Berkeia, 90 

 Coosella, "jz, 75 



brevis, 76 



texana, 75 

 Coosia, TZ 



albertensis, T2> 



canadensis, ']2> 



dakotensis, 74 



tridentensis, 74 



wyomingensis, 67 

 cordillerensis, Taenicephalus, loi 

 crassimarginata, Iddingsia, 87 

 curta, Burnetia, 83 

 curtus, Kliipsoceplialoides, 62 



dakotensis, Coosia, 74 

 Dartonaspis, 2, 4 

 davisensis, Irvingella, 16 

 deckeri, Drumaspis, 31 



Irvingella, 19 

 declivis, Ellipsocephaloides, 67 

 Dicellocephalus bilobatus, "]"] 

 Dikellocephalus (Pterocephalus) bilo- 

 batus, T] 

 disparilis, Blountia (?), 61 

 Dokimocephalus, 79 

 Drumaspis, 3, 4, 28 



alberta, 29 



briscoensis, 30 



clara, zz 



deckeri, 31 



goodsirensis, 30 



idahoensis, 29 



maxwelli, 31 



nitida, 34 



osella, z~ 



sabinensis, 31 



texana, 32 



