XI 
Subclassis I. Dipnoi J. Miill. 
Ordo 1. Proroprrert = LEPIDOSIRENIDAE Bp. 
Familia 1. Sirenoidei J. Müll. = Lepidosirenini Bp. = Pneumoichthyi 
V.d. Hoev. = Sirenidae Richds. 
Gen. Lepidosiren Natt., Protopterus Owen. 
Subclassis Il. Monopnoi. 
Divisio I. Drrurnicutuyss. 
Legio 1. Cephalaspides (fossil.). 
Ordo 2. Coccosrer. 
Familia 2. Cephalaspidoidei = Cephalaspides Ag. 
Gen. Cephalaspis Ag., Coccosteus Ag., Pterichthyodes Blkr (Pterichthys Ag.), 
Pamphraetus Ag., Homothorax Ag., Chelyophorus Ag., Menaspis Ewald, 
Maeropetaliehthys Norw. Ow., Placothorax Ag., Polyphractus Ag. 
Legio 2. Sturiones Bp. = Micrognathi Bp. 
Ordo 3. Cuoxprosrer J. Müll. 
Familia 3. Acipenseroidei = Sturionidi Raf.= Acipenseridae Bp. 
Gen. Acipenser L., Scaphirhynchus Heck., Chondrosteus Ag. (foss.). 
Familia 4. Polyodontoidei = Polyodontidae Bp= Prionidae Swns.= Spa- 
tulariae J. Müll. 
Gen. Polyodon Lac. 
Legio 3. Elasmobranchii Bp. = Selaciens Cuv. = Selacha Bp. 
Ordo 4. Pracrosromr Dum. = PracrosrowAvA Goldf.= Trimaropnts Dum. 
= DesmiograxcHir V.d. Hoev. 
Subordo 1. SQuaAzINI = Sauazes Cuv. = Prevrorriurs Dum. = SELACHIL 
s. SQUALI V. d. Hoev. 
Sectio 1. PROKTOPTERIDES. 
Tribus 1. DINOTOPTERINI. 
Familia 5. Seyllioidei = Seyllini Bp.= Seyllia MH. 
Gen. Seyllium MH. (p. 204), Thyellina Münst. (foss.), Pristiurus Bp., Chi- 
loseyllium MH. (p. 204), Crossorhinus MH., Ginglymostoma MH. 
(p. 205), Stegostoma MH. (p. 205); Scylliodus Ag. (foss.), an huj. loc.? 
Familia 6. Carcharioidei 4 Carehariae MH. = Carcharidae Richds. 
Gen. Carcharias MH (p. 205), Leptocarias Smith, Glyphis Ag. (foss.), 
Triaenodon MH. 
Familia 7. Zygaenoidei = Zyganinae Swns.= Zygaenidae Richds. 
Gen. Zygaena Cuv.= Sphyrna Raf. (p. 207). 
