CATALOGUE OF BRITISH CRUSTACEA. 51 



Pherusa fucicola, Leach, Ed. Enc. Suppl. i. p. 426, vii. p. 432 : 

 Linn. Trans, xi. p. 360. 



a c. Kocky Shores of Devon (under stones, at low-tide under 

 Fuel). From the collection of Col. Montagu. 



5. AMPHITHOE OBTUSATA. Leach's Coast-Screw. 



Amphithoe obtusata, M. Ediv. Ann. Sc. Nat. xx. p. 377 ; Gamma- 



rus obtusatus, Mont. Linn. Trans, xi. t. 2, f. 7. 

 Melita obtusata, Leach, MSS. 



a. Devon (Salcombe Bay). From the collection of Col. Montagu. 



5. ACANTHONOTUS. 



Acanthonotus, Owen, Ross's Second Voyage, Appendix, p. xc. (1835)." 



Oniscus, pt. O. Fabr. Faun. Grcenl. 



Amphithoe, pt. Kroyer. 



Vertumnus, Leach, MSS. ; White (1847). 



1. ACANTHONOTUS (VERTUMNUS) TESTUDO. Cranch's Sea-Screw. 



Jun. Oniscus Testudo, Mont. Linn. Trans, ix. p. 102, t. 5, f. 5 



(fig. pessima) ; Leach, Ed. Enc. vii. p. 405. 

 Vertumnus Cranchii, Leach, MSS,; White, List of Crust, in 



Brit. Mus. p. 89 (1847). 

 Acanthonotus (Vertumnus) Testudo, White, Proc. ZooL Soc. Lond. 



1850, t. f. 



a d. Falmoulh. Collected by Mr. John C ranch. 

 e. Cornwall. Presented by W. P. Cocks, Esq. 



6. GAMMABUS. 



Gammarus, Latr. Gen. Crust, et Ins. i. p. 58 (pulex) ; Leach, Ed. 



Enc. vii. p. 402. 



Maera, pt. Leach, Ed. Enc. vii. p. 403. 



Gammarus, pt. Fabr. Syst. Ent. p. 418 (1775); Ent. Syst. ii. p. 514. 

 Oniscus, pt. Pallas, Spic. ZooL 

 Squilla, pt. Degeer, Mem. vii. 



1. GAMMARUS LOCUSTA. The Common Coast-Screw. 



Gammarus locusta, Fabr. Ent. Syst. ii. p. 516 ; Leach, Ed. Enc. 

 xi. p. 359 ; Desm. Cons. p. 267 ; Kroyer, Gronl. Amfp. ; 

 Rathke, Faun. Crim. t. 5, f. 11 14 ; M. Edw. Crust, ii. p. 44. 



F 2 



