156 PROCEEDINGS OF THE AMERICAN ACADEMY 



— Spec. Insect., I. 509. 1781. — Mantissa Insect., I. 331. 

 1787. — Entomol. Syst. em. et aucta, II. 478. 1793. — Supplem. 

 Entomol. Syst., p. 406. 1798. 



Astacus Jluviatilis, De Geer, Mem. Hist. Ins., VII., PI. XX- 

 XXII. 1778. 



Cancer astacus, Herbst, op. cit., II. 38, PI. XXIII. fig. 9. 

 i 1796 (in part: Edle Krebse, p. 41). 



Astacus Jluviatilis, Latreille, Hist. Nat. Crust, et Ins., I. 367, 

 PI. III. 1801 ; III. 33, 1801 ; V. 235, 1802. 



Astacus Jluviatilis, Bosc, Hist. Nat. Crust., II. 62, PI. XI. 

 fig. 2. 1802. 



Cancer nobilis (Edelkrebs), Schrank, op. cit., p. 246. 1803. 



Edelkrebs, Wolf, op. cit., PI. I. fig. 3. 1806. 



Astacus Jluviatilis, Brandt and Ratzeburg, Med. Zool., II. 58, 

 PI. X., XL 1833. 



Astacus Jluviatilis (in part), Milne Edwards, op. cit., II. 330. 

 1837 (second " variety " noted on p. 331). 



Astacus Jluviatilis, Koch, op. cit., Heft 36 (186), No. 23, with 

 fig. 1841. 



Astacus Jluviatilis, Erichson, op. cit., p. 90. 1846. 



Astacus Jluviatilis, Lereboullet, op. cit., V., PI. III. figs. l-l d . 

 1858. 



Astacus Jluviatilis communis, Gerstfeldt, op. cit., pp. 554, 584. 

 1859. 



Astacus Jluviatilis, Heller, op. cit., p. 214, PI. VII. figs. 3, 4. 

 1863. 



Astacus Jluviatilis (l'ecrevisse a pieds rouges), Carbonnier, op. 

 cit., p. 8. 1869. 



Astacus Jluviatilis, Kessler, op. cit., p. 257. 1874. 



Astacus nobilis,* Huxley, op. cit, pp. 295, 296, fig. 61, B, E, 

 H, fig. 62, B, E. 1880. 



Astacus Jluviatilis (Edelkrebs), Klunzinger, op. cit., XXXVIII. 

 342. 1882. 



Hab. Russia (Baltic water-shed and small streams of the 

 upper part of the basin of the Dnieper), Austria, Germany, France, 

 Italy? It is also found in Denmark according to Huxley, and 

 in the Scandinavian peninsula. It appears to have been artifi- 

 cially introduced into the latter. It was scarcely known in Swe- 

 den before the time of John III. (1568-1 592).| From Sweden 



* See first foot-note on preceding page, t Linne, Fauna Suecica, p. 358, 1746. 



