SYSTEMATIC INDEX 
OF 
GENERA AND SPECIES 
DESCKIBED IN PAllT I. 
Page 
Subclass ELASMOBRANCHII 1 
Order ICHTHYOTOMI 1 
FamUy PLEURACANTHIDiE 1 
Pleuracanthus 2 
decheni 3 
laevissimus 5 
robustus 7 
arcuatus 8 
cylindricus 8 
Diplodus gibbosus 10 
tenuis 11 
parvulus 12 
latus 12 
compressus 12 
gracilis 13 
acinaces 13 
bohemicus 14 
Chondrenchelys 15 
problematica 16 
