SYSTEMATIC INDEX. 
XXXV 
Kiiraily PETALODOXTID.;E (continued). 
Page 
Janassa imbricata 38 
Fissodus 40 
PetaloThynchus 40 
psittacinus 40 
psittacinus, var. minor 41 
Petalodus 42 
acuminatus 42 
hastingsiae 44 
grandis 45 
flabellula 45 
linearis 45 
davisii 46 
alleghaniensis 46 
Ctenoptycbius 49 
apicalis 50 
dentatus 51 
lobatus 51 
serratus 52 
Callopristodus 54 
pectinatus 55 
Polyrhizodus 56 
maguus . 57 
colei 57 
sinuosus 58 
elongatus 58 
attenuatns 68 
concavus 69 
Glossodus 60 
lingua-bovis 60 
Mesolophodus 61 
problematicus 61 
Family PEISTODONTID /E 62 
Pristodus 62 
falcatus 63 
c2 
