PHYSIOPHILOSOPHICAL SYSTEMS. 341 



II. Circulus. PHTSIOZOA. 



Evolutio systematis generationis. 

 CL. 4. VERMES. CL. 5. RADIATA. CL. 6. ANNULATA. 



B. Gradus evolutionis systematuin physiologicorum aniinalium. 



III. Circulus. DERMATOZOA. 



Evolutio systematis sensibilitatis. 

 CL. 7. ACEPHALA. CL. 8. CEPHALOPODA. CL. 9. MOLLUSCA. 



IV. Circulus. ARTHROZOA. 



Evolutio systematis motus. 

 CL. 10. CRUSTACEA. CL. 11. ARACHNOIDEA. CL. 12. INSECXA. 



II. Provincia. VERTEBRATA. 



Animalia systematuin anatoraicorum aniinalium gradum evolutiouis 

 exhibeutia. 



A. Gradus evolutionis systeinatum physiologicorum vegetativoruni. 



a. Evolutio systematis nutritiouis, simul- 



que ossium .... CL. 13. PISCES. 



b. Evolutio systematis generationis, simul- 



que musculoruui . . . CL. 14. REPTILIA. 



B. Gradus evolutionis systematum physiologicorum animalium. 



c. Evolutio systematis sensibilitatis, simul- 



que nervorum . . . CL. 15. AVES. 



d. Evolutio systematis motus, simulque 



sensuum .... CL. 16. MAMMALIA. 



The fundamental idea of the classification of Fitzinger 

 is the same as that upon which Oken has based his sys- 

 tem. The higher divisions, called by him provinces, 

 grades, and cycles, as well as the classes and orders, are 

 considered as representing either some combination of 

 different systems of organs, or some particular system of 

 organs, or some special organ. His two highest groups 

 (provinces) are the Evertebrata and Vertebrata. The 

 Evertebrata represent the systems of the vegetative organs, 

 and the Vertebrata those of the animal organs, as the Gut- 

 animals and the Flesh -animals of Oken. Instead, how- 

 ever, of adopting, like Oken, anatomical names for his 



