Turner, Nervous System of Cypris. 21 



2. Ueber die Organization von die Cypridinen. Zeit. f. 



wiss. Zool., Bd. XV, 1865, pp. 144-153, Taf. X. 



3. Abs. do. in An::etg. kais. Akad. wiss. IVzen, Vol. VII, 



1890, pp. 55-60. 



4. Trans, do. in Ann. Nat. Hist., Vol. 6, July, p. 108. 



5. Neue Beobachtungen iiber Cypridinen. Zeit. f. iviss. 



Zool., Bd. XXIII, pp. 211-277, pi. X-XI, 1873. 



6. Das Medien-auge der Crustaceen. Arb. Inst. Wien, 



Bd. IX, pp. 225-266, 4 Taf., 1891. 



7. Ueber den feineren Ban des Medien auges der Crusta- 



ceen. Anz. Akad. Wien, p. 124-127, 1891. 

 Lang. 



8. Text- Book of Comparative Anatomy. Trans, by 



Bernard, p. 344. 



Rehberg, Hermann. 



9. Beitrage zur Naturgeschichte niederer Crustaceen. Bre- 



men, 1884, p.. 11-13, Taf. II. 

 Turner, C. H. 



10. Preliminary Note on the Nervous System of the Genus 



Cypris. four, of Comp. Neur., Vol. Ill, 1893, pp. 35- 

 40, pi. Ill and IV. 

 Vavra, Wenzel. 



11. Monographic der Ostracoden Bohmens. Prag, 1891, 

 pp. 16-19. Fig- 4- 



HISTORICAL resume. 



Among the legions of histological monographs that recent 

 instruments and improved technique have called forth, those on 

 the neurology of the Ostraeoda form an all but insignificant part. 

 To the best of my knowledge the first to write on this subject 

 was Leydig. He described the peculiar seta found on the sec- 

 ond joint of the antenna and called it a sensory seta. 



Then followed Dr. Carl Claus, who, in i860 (i) discussed 

 these same setae and called them " blasse Kolbemuid Cylinder" 

 or " Leydische organe. " In 1865 (2) the same author discussed the 

 eyes of Cypridina, laying special stress upon a simple eye 



