34 
CATALOGUE OF BRITISH CRUSTACEA. 
Fam. V. ASTACID.E. 
Astacidse, pt. Leach. 
Astaciens, M. Edw. Crust, ii. p. 326. 
Astacini, I. Latr. Gen. Crust, et Ins. i. p. 50. 
Astacinae, II. Latr. Fam. Nat. p. 279. 
Astacoidea, pt. Haan, Faun. Jap. p. 163. 
1. POTAMOBIUS. 
Potamobius, Leach, Sam. Ent. U. Comp. p. 95, 1819 (not Risso). 
Astacus, M. Edw. Crust, ii. p. 329 (1837). 
Astacus, pt. Fabr. Syst. Ent. p. 413 (1775) ; Ent. Syst. Suppl. p. 
382, 406. 
Cancer, sp. Linn. Syst. Nat. 
Craw-Fish or Cray-Fish (local name). 
1. Potamobius astacus. Cray-Fish. 
Cancer fluviatilis, Rondel. Poiss. ii. p. 10. 
Astacus fluviatilis, Gesner, Aldrov. Raster, Opusc. Sub. ii. t. 1. 
Cancer astacus, Linn. Syst. Nat. p. 1051 ; Deaeer, Penn. Brit. Zool. 
iv. p. 15, t. 15, f. 27. 
Cancer nobilis, Schrank, Faun. Boic. iii. p. 246. 
Astacus fluviatilis, Fabr. Ent. Syst. Suppl. p. 406 ; Latr. Hist. 
Nat. Crust, v. p. 235 ; Guerin, Icon. R. A. Crust, t. 19, f. 2 
(blue variety) ; M. Edw. Crust, ii. p. 330; Haan, Faun. Jap. p. 
164; Erichs. Arch. 1846, p. 90 ; Bell, Brit. Crust, p. 237. 
Potamobius fluviatilis, Leach, Sam. Ent. U. Comp. p. 95 (not of 
Risso, II. N. Eur. Mer. v. p. 14, which is the Thelphusa flu- 
viatilis) . 
Var. Cancer Torrentium, Schratik, Faun. Boic. iii. p. 247. 
Astacus Torrentium, Koch, Panz. D. Ins. p. 186, 24. 
Var. Astacus saxatilis, Koch , Panz. D. Ins. p. 140, 1. 
Var. Astacus tristis, Koch. Panz. D. Ins. p. 140, 2. 
a — c. England (near London). 
d. Middlesex (New River). 
e, f. Near London. Presented by Mr. John Doubleday. 
g, h. Cambridgeshire. Presented by Mr. Joseph Baker. 
