SYNOPSIS OF ANIMAL KINGDOM. 



621 



VERTEBRATA. 

 I. ICIITHYOPSIDA. 



1. PISCES. 



A. HYPICRTHYES. 



Cephalochordatafor ( . , • ,t ^ l\ ^-kt s ^^ ^ \ 



Pharyngobranchii). ( ^^P^^^^^^^ (Lancelot). (No fossil forms.) 



B. 3IYZICHTHYES. 



Marsipobranchii. Myxine (Hag-fish), Petromyzon (Lamprey), 

 Conodonts ? 



C. CRONDRICHTHYES. 



Chimgeroidei. ChimDera(Kiiigof tlie Herrings), ^CALLORHrNCHus, 



Edaphodon, Elasmodus, Ischyodus, ^'Rhyn- 

 chodus. 



Selachii. (Sharks) Cestracion, Caechaeias, Caechaeodon, 



Lamna, Axteracanthus, Uyhodus, Onchus, 

 Otodus. (Rays) ^tobatis, Myliobatis. 



D. EERPETICHTEYES. 



Dipnoi. Lepiclosiren, Ceratodus, Dipterus, Phanero- 



pleuron ? 



E. 08TEICETHYES. 



Ganoidei. Polypterus, Acipensee (Stttegeon), Lepidosteus, 



Cephulaapis, Coccosteus, Cmlacaiitlms, Holopty- 

 chius, Lepidotus, Macropoma, Megalichthys, 

 PalcBoniscus, Pholidopliorus, Pteraspis, 

 Pterichthys, Pycnodus, Bhizodus. 



Teleostei. Salmo (Salmon), Gadus (Cod-fish), Beryx, Esox, 



Ciinolicldhys, Osmeroides, llirissopater. 



Urodela. 



Anura. 



Peromela 



Labyrinthodonta. 



2. AMPHIBIA. 



(Newts and Salamanders) Amphiuma, Axolotl, 



Proteus, Siren, Teiton, '^-Pal(BOsireti'i '^'Pro- 



triton. 

 (Erogs and Toads) Rana, Bufo. 

 Caecilia, Siphonops. (No fossil forms.) 

 Anthracosaurm, '^'Archagosauriis, '^'Dendrerpeton, 



Lahyrinthodon, Loxomma, Mastodonsaurus, 



Ophiderpeton. 



