CRUSTACEA OF NORTHUMBERLAND AND DURHAM 



Rhynchotalona falcata (G. O. Sars). 



1862. Harporhynchus falcatus, G. O. Sars, Om de i 

 Omengen af. Christiania forekommende Cladocerer, 

 Forhand. Videns-Selsk. Christiania, 1861, p, 41 

 (separate copy). 



1867. Lyncais falcatus, Norman and Brady, I.e., p. 3S7, 



pi. xviii., fig. 4, pi. X.X., fig. I. 

 1884. LeptorhyncJnis falcatus, C. L. Herrick, Final Report 



on the Crustacea of Minnesota, p. 114, pi. i., fig. 17. 

 1 90 1. Leptorhynchus falcatus, Lilljeborg, I.e., p. 488, 



pi. Ixix., figs. 22-26, pi. Ixx., figs. 1-5. 

 1903. Rhynchotalona falcata, Xorinan, New generic names 



for some Entomostraca and Cirripedia. Ann. and Mag. 



Nat. Hist., ser. 7, vol. xi., p. 367. 



Sars' generic name Harporhynchus being pre-occupied, 

 Herrick substituted Leptorhynchus, an unfortunate choice, as 

 the name had been more than once previously used, and 

 therefore Dr. Norman has re-named the genus Rhynchotalona. 



Greenley Lake, Northumberland (A. M. N.), and Sweethope 

 (G. S. B.) N. 



Levdigia Levdigii (Schcidler). 



i860. Lynceus quadrangularis, Leydig (nee Miiller), 

 Naturgesch. der Daphniden, p. 221, pi. viii., fig. 50. 



1863. Alona Ley digit, Schodler, Neue Beitrage zur Natur- 

 gesch. d. Cladoceren, p. 27. 



1874. Leydigia quadrangularis, Kurz, Dodekas neuer 

 Cladoceren (separate copy), p. 52, pi. ii., fig. 2. 



1901. Leydigia quadrangularis, Lilljeborg, I.e., p. 494, 

 pi. Ixx., figs. 6-17, pi. Ixxi., figs. 1-3. 



Schodler was undoubtedly right in re-naming this species, 

 because the specific name quadrangularis, as used by Leydig, 

 was that of another species deseribeil by Miiller, and mis- 

 applied by Leydig to the present form. 



The specimen assigned to L.ynceus acanthocercoides by Brady 

 and Norman (I.e., p. 385, pi. xix., fig. 5, pi. xxi., fig. 7), was 

 really the present form, and not that described by Fischer. 



