MORPHOLOGY OF THE NERVOUS SYSTEM OF 



CYPRIS. 



C. H. Turner. 



With Plates I/I— VIZ I. 

 Introduction. 



About three years ago, on publishing a " Prehminary 

 Note on the Nervous System of the Genus Cypris,'' I promised 

 to pubHsh, in the near future, a histological monograph on the 

 Ostracoda. This paper is intended as the first installment of 

 such a monograph. In this communication it is intended to 

 give a detailed discussion of the central and peripheral nervous 

 systems of the CypridcE. 



Owing to its large size, Cypris herricki Turner has been 

 selected as the type to study. To eliminate all mere size-vari- 

 ations, Cyprmotiis incongmcns Ramdohr has been used as a 

 check. For the study of the central nervous system, these 

 two species have been considered representative types of the 

 CypridcE ; but, in studying the peripheral sense organs, use has 

 been made of all accessible genera. These genera are : Can- 

 dona, Cyclocypris, Cypria, Cypris, Cyprinotus, and Cypiidopsds. 



This paper being the embodiment of neurological investi- 

 gations, any prolonged discussion of extra-neural systems 

 would be out of place ; yet, in order to facilitate a comprehen- 

 sive discussion of the nervous system, a few terse histological 

 statements upon the associated .systems have been made. 



bibliography. 



Claus, C. 



I. Ueber die blassen Kolben und Cylinder an den An- 

 tennen der Copepoden und Ostracoden. WTtrzbnrg 

 naturw. Zeit. i Bd., i86o, Taf. VH, Fig. i, 2,5. 



