XIII 
Subordo 2. Eajini =: Raies Cuv. ^ Batides V. d. Hoev. Hypotrèmes Dum. 
Familia 19. Pristidoidei ^ Pristidini Bp. rï Pristides J. Müll. r! Pristidae 
Riclids. 
Gen. Pristis Lath. (p. 208), Squaloraja Riley (foss.). 
Familia 20. RMnobatidoidei ji! Rhinobatini Bp. s Rhinobatinae Swns. z; 
Rhinae MII. ö Rhinobatidae Richels. 
Gen. Rhina BI. Schn. (p. 209), Rhyncbobatus MII. (p. 209), Rhinobatus BI. 
Schn. (p. 209\ Trygonorhina MII., Platyrhina MII. (p. 209), Arthropterus 
Ag. (foss.), Spathobatis Thioll. (foss.). 
Familia 21. Torpedinoidei Torpedinini Bp. z; Torpedines ]\tll. z: Torpe- 
dinae RIchds. 
Gen. Torpedo Dum., Nareine Henl. (p. 210), Astrape MII. (p. 210), Temera 
' Gr. (p. 210), Discopyge Pleck., Hypnos Dum., Cyclobatis Egert. (foss. 
an huj. loei?). 
Familia 22. Trygonoidei Trygonini Bp. zJ Trygones MII. zi Trygonidae 
Richds. 
Gen. RbaeMnotns Cant.. (p. 212), Trygpn Adans. (p. 210), Pteroplatea DIII. 
(p. 212), Taeniura hlll., (p. 212), Tiygonobatis Blv. Trygonoptera MII., 
Aëtoplatea Tal. (p. 212), Byzenos Münst. (foss.). 
Familia 23. Rajoideizl Rapni Bp. z; Rajae J. Müll.z) Raiidae Richds. 
Gen. Raja Cuv. (p. 210), Sympterygia MII., Uraptera MH., Astrodermus Ag., 
(foss.), Euryarthra Ag. (foss.), Cyclarthrus Ag. (foss.), an hujus loci.? 
Familia 24. Myliobatidoidei z^ Myliobatini Bp. zl Myliobatidae Richds. 
Gen. Myliobatis Cuv. (p. 212), Aëtobatis hlH. (p. 213), Rbinoptera Kuhl 
(p. 213), Zygobatis Ag. (foss.). Janassa Jlünst. (foss.). 
Familia 25. Ceplialopteroidei z Cepbalopterini Bp. z Cephalopteridae Richds. 
Gen. Cepbaloptera Risso (p. 214), Ceratoptera MII. 
Append. Iclithyodorulithes (foss.). 
a. Spinae plus minusve compressae , edentulae. 
Gen. Onchus Ag., Oracanthus, Ag., Gyracanthus Ag.. Dlmeracanthus Keyserl, 
Nemacanthus Ag., Leiacanthus Ag., Ilaplacanthus Ag., Xarcodes Ag., Naula Ag., 
Byssacanthus Ag., Cosmacanthus Ag. 
b. Spinae minusve compressi, postice dentatae. 
Gen. Leptacanthus Ag., Homacanthus Ag., Asteracanthus Ag., Priscacanthns Ag., 
Myriacanthus Ag., Ctenacanthus Ag., Tristychius Ag., Asteroptychius Ag., Phy- 
sonemus Ag., Ptychacanthus Ag., Sphenacanthus Ag.. Platycantbus M’Coy, 
Diprlacanthus M’Coy, Erismacanthus M’Coy, Climatius Ag, Paresus A^., 
Odontacanthus Ag. 
c. Spinae plus minusve depressi lateribus dentatae. 
Gen. Pleuracanthus Ag., Aulacanthus Ag., Orthacanthus Ag. 
d. Spinae characteribus,^. . .? 
Gen. Cladacantlius Ag., Cricacanthus Ag., Lepracanthus Egert., Gyroprislis Ag. 
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