CRUSTACEA OF NORTHUMBERLAND AND DURHAM 339 



Pleuroxus uncinatus Baird. 



1850. Pleuroxus uncinatus, Baird, Brit. Entom., p. 135, 



pi. xvii., fig. 4. 

 i860. Pleuroxus personahis, Leydig, Naturgesch. d. Daph- 



niden, p. 227, pi. x., fig. 70. 

 1863. Rhypophilus glaber, uncinatus, and personatus, 



Schodler, Neue Beit. z. Naturgesch. d. Cladoceren, 



PP- 55> 56, pl- iii-, figs. 54-56 {-R- glaber). 

 1867. Lynceus uncinatus, Norman and Brady, I.e., p. 393, 



pl. xviii., fig. 9, pl. xxi., fig. 13. 

 1 90 1. Pleuroxus uncinatus, Lilljeborg, I.e., p. 537, pl. Ixxv., 



figs. I-IO. 

 Greenley Lake, Hardwick Lake Sedgefield (A. M. N.); 

 East Belsay and Wallington Lakes (G. S. B.) N.D. 



Chydorus globosus Baird. 



1843. Chydorus globosus, Baird, Ann. and Mag. Nat. Hist., 



vol. xi., p. 90, pl. iii., figs. 1-4. 

 1848. Lynceus tenuirostratus, S. Fischer, Uber die in d. 



Umgeb. von St. Petersburg vorkom. Crust., p. 193, 



pl. X., fig. 3. 

 1867. Lynceus globosus, Norman and Brady, I.e., p. 398, 



pl. XX., fig. 5. 

 1901. Chydorus globosus, Lilljeborg, I.e., p. 547, pl. Ixxv., 



figs. 18-27, pl. Ixxvi., fig. I. 

 Crag Lake (A. M. N. and G. S. B.) N. 



Chydorus sph/ericus (O. F. Miiller). 



1867. Lynceus sphcericus, Norman and Brady, I.e., p. 399, 



pl. xxi., fig. 12. 

 1901. Chydorus sphcericus, Lilljeborg, I.e., p. 561, pl. Ixxvii., 

 figs. 8-25. 

 Abundant everywhere. N.D. 



Var. ccelatus Schodler. 

 • Greenley Lake; Sedgefield (A. M. N.); pond on Warden Law 

 (G. S. B.) N.D. 



