14 XXXVU. J. v. Rohou: 



Cl. Pisces. 

 Subcl. Protocephali, mihi. 



(Incertae sedis.) 

 Ordo I. Aspidorhini, mihi. 



(Heterostraci, Ray Lankester.) 



Familie. Pteraspidae. 



Genus Pteraspis, Kner et Huxley. 

 rostrata (Agassiz). 

 Crouchi, Lankester. 

 angustata, Alth. 

 podolica. Alth. 

 Mitchelli, Powrie. 

 rhenana, Sohluter. 

 Cyafhaspis, Lankester. 

 Banksi (Huxley et Salter), 

 integer, Kunth. 

 Schmidti, Geinitz. 



» 

 » 



» 



55 

 5J 

 55 

 5> 

 55 

 55 



„ Sturi, Alth. 



„ acadica (Matthew). 



55 



Maccullought^ A. S. Woodward. 



Subgenus Tolypaspis, F, Schmidt. 



„ tmdulata (Panděr). 



Genus Palaeaspis, Claypole. 



sericea (Lankester). 

 americana, Claypole. 



55 



55 



Ordo n. Aspidocephali (Brandt). 



(C e p h a 1 a s p i d a e, Huxley.) 

 (O s t e o s t r a c i, Lankester.) 



1. Familie Thyestidae, mihi. 



Genus Thyestes, Eichwald. 



verruúosus, Eichwald. 



