—- 
XIII 
Subordo 2. RaziNr = Rates Cuv. = Baripes V.d. Hoev. = Hrrorrùmes Dum. 
Familia 19. Pristidoidei rj Pristidini Bp.= Pristides J. Müll = Pristidae 
Richds, 
Gen. Pristis Lath. (p. 208), Squaloraja Riley (foss.). 
Familia 20. Rhinobatidoidei 4 Rhinobatini Bp. = Rhinobatinae Swns. = 
Rhinae MH. = Rhinobatidae Richds. 
Gen. Rhina BI. Schn. (p. 209), Rhynchobatus MH. (p. 209, Rhinobatus Bl. 
Schn. (p.209), Trygonorhina MIL, Platyrhina MH. (p. 209), Arthropterus 
Ag. (foss.), Spathobatis Thioll. (foss.). 
Familia 21. Torpedinoidei= Torpedinini Bp.= Torpedines MH.= Torpe- 
dinae Richds. 
Gen. Torpedo Dum., Narcine Henl. (p. 210), Astrape MIT. (p. 210), Temera 
Gr. (p. 210, Discopyge Heck, Hypnos Dum., Cyclobatis Egert. (foss. 
an huj. loci?) 
Familia 22. Trygonoidei = Trygonini Bp.= Trygones MH.= Trygonidae 
Richds. 
Gen. Rhachinotus Cant., (p.212), Trygon Adans. (p.210), Pteroplatea MH. 
(p. 212), Taeniura MH, (p. 212), ‘Frygonobatis Bly. Trygonoptera MH, 
Aëtoplatea Val. (p. 212), Byzenos Münst. (foss.). 
Familia 23. Rajoidei= Rajini Bp.= Rajae J. Müll.= Raïidae Richds. 
Gen. Raja Cuv. (p. 210), Sympterygia MH., Uraptera MH., Astrodermus Ag., 
(foss.), Euryarthra Ag. (foss.), Cyclarthrus Ag. (foss.), an hujus loci.? 
Familia 24. Myliobatidoidei= Myliobatini Bp. = Myliobatidae Richds. 
Gen. Myliobatis Cuv. (p. 212), Aetobatis MH. (p. 213, Rhinoptera Kuhl 
(p. 213), Zygobatis Ag. (foss., Janassa Münst. (foss.). 
Familia25. Cephalopteroidei = Cephalopterini Bp.= Cephalopteridae Richds. 
Gen. Cephaloptera Risso (p. 214), Ceratoptera MH. 
Append. Ichthyodorulithes (foss.). 
a. Spinae plus minusve compressae, edentulae. 
Gen. Onchus Ag, Oracanthus Ag., Gyracanthus Ag. Dimeracanthus Keyserl, 
Nemacanthus Ag., Leiacanthus Ag. Haplacanthus Ag, Narcodes Ag. Naula Ag., 
Byssacanthus Ag., Cosmacanthus Ag. 
b. Spinae plus minusve compressi, postice dentatae. 
Gen. Leptacanthus Az. Homacanthus Az, Asteracanthus Ag. Priscacanthus Ag. 
Myriacanthus Ag., Ctenacanthus Ag. Lristychius Ag, Asteroptychius Ag. Phy- 
sonemus Ag 
g., Ptychacanthus Ag, Sphenacanthus Ag, Platycanthus M'Coy, 
Dipriacanthus M'Coy, Erismacanthus M'Coy, Climatius Ag, Parexus Ag. 
Odontacanthus Ag. 
c. Spinae plus minusve depressi lateribus dentatae. 
Gen. Pleuracanthus Ag., Aulacanthus Ag., Orthacanthus Ag. 
d. Spinae characteribus . . .? 
Gen. Cladacanthus Ag., Cricacanthus Ag., Lepracanthus Egert.,Gyropristis Ag. 
