d. j. scourfield on ephippia of lynceid entomostraca. 243 



« Literature Referred to. 



1. Baird, W. "Natural History of the British Entomostraca." 



Ray Society, 1850. 



2. JuRiNE, L. " Histoire des Monocles." Geneva, 1820. 



3. KuRZ, W. " Dodekas neuer Cladoceren." Sitzungsherichte 



der Kaiserlichen Akad., vol. Ixx., Wien, 1874. 



4. Lilljeborg, W. " Cladocera Sueciae." I^ova Acta Regiae 



Societatis Scientiarum Ujysaliensis, vol xix., Ser. III., 

 Upsala, 1900. 



5. Sars, G. 0. " Additional Notes on Australian Cladocera 



raised from dried mud." Christiania Videnskabs-Selskabs 

 Forhandlinger, 1888, No. 7. 



6. Sars, G. 0. " Contributions to the knowledge of the 



Freshwater Entomostraca of South America." Archiv 

 f. Mathem. og Xaturvidenskah, Christiania, 1901. 



7. Schodler, J. E. " Ueber Acanthocercus rigidus^ ArcJiiv 



filr Naturgeschichte, Berlin, 1846, pp. 301-374. 



8. Schodler, J. E. ''Neue Beitrage zur Naturgeschichte der 



Cladoceren," Berlin, 1863. 



9. ScouRFiELD, D. J. " A very common Water- Flea {Chydorus 



sphaeriGus)y Illustrated Annual of Microscoj^y, London, 

 1898, pp. 62-67. 



10. ScouRFiELD, D. J. " The Winter Egg of a rare Water-Flea 



{Leydigia acanthocercoides Fischer)." Journ. Quekett 

 MicrQSGojncal Club, Ser. II., vol. vii., 1899, pp. 171-79. 



11. ScouRFiELD, D. J. "The Ephippium of Bosniina." Journ. 



Quekett Microscopical Club, Ser. II., vol. viii., 1901, pp. 

 51-56. 



12. Weismann, a. " Beitrage zur Naturgeschichte der Daph- 



noiden." Zeitschrift filr Wiss. Zoologie, vol. xxviii., 1877. 



Explanation of Plates 10, 11, and 12. 



(Note, — The ephippia have not been shaded, in order to show the shell 

 sculpture and inner membranes more clearly.) 



Plate 10. 



Eurycercus lamellatus, ephippial ? . x 18. 



,, ,, ephippium. After Weismann. 



Camptocercus rectirostris, ephippium. x 60. 

 „ „ ephippial ? . x 50. 



„ ,, anterior end of line of weakness 



between ephippium and ventral portion of shell. 

 x 250. 



