THE CRUSTACEA OF NEW JERSEY. 469 



Genus CHYDORUS Leach. 

 Chydorus sphaericus (Miiller). 

 Chydorus bicornutus Doolittle. 



Family LEPTODORID^. 



Genus LEPTODORA Lilljeborg. 



Leptodora Lilljeborg, Of vers. Vet. Ak. Forhandl, XVII, i860, p. 265. Type 

 Leptodora liyalina Lilljeborg, monotypic. 



Leptodora hyalina Lilljeborg. 



Leptodora hyalina Lilljeborg, 1. c, PI. 7, figs. 1-22. Ostergothland and 

 Rings jon, Sweden. 



Fellows, Proc. Amer. Soc. Micros., IX, 1886, p. 176. Lake Chautau- 

 qua, N. Y. 



Fellows, 1. c., X, 1887, p. 248 (same record). 



New York (Lake Chautauqua). 



Family DAPHNID^. 



Genus DAPHNE Miiller. 

 Daphne pulex (Linnaeus). 



Daphnia. 



Daphne kerusses (Cox). 



Daphnia kerusses Cox, Amer. Month. Micros. Journ.. IV, 1883, p. 88, fig. 17. 

 Fox River, Appleton, Wisconsin. 



Kellicott, Proc. Amer. Soc. Micros., 1884, p. 129. Creek at Hamburg, 



New York. 



Underwood, Bull. 111. Lab. N. Hist, 11, October, 1886, p. 342. New 



York. 



Nkvv York (Hamburg). 



Daphne kahlbergiensis (Schoedler). 



Hyalodaplmia kahlbergiensis Schoedler, Arch. Naturg., XXII, I, 1866, p. 18, 



PI. I, figs. 1-3. Ostseebade Kahlberg. 

 Daphnia ccderstromii Fellows, Proc. Amer. Soc. Micros., IX, 1886, p. 176. 



Lake Chautauqua, N. Y. 

 Fellows, 1. c, X, 1887, p. 249 (same record). 



New York (Lake Chautauqua). 



Genus SIMOSA Norman. 



Simosa Norman, Ann. Mag. N. Hist. London, (7) II, 1903, p. 367. Type 

 Daphne vettila Miiller, virtually, as name proposed to replace .'^imoce- 

 phalus. 



