CATALOGUE OF BRITISH CRUSTACEA. 
51 
Pherusa fucicola, Leach , Ed. Enc. Suppl. i. p. 426, vii. p. 432 ; 
Linn. Trans, xi. p. 360. 
a — c. Rocky Shores of Devon (under stones, at low-tide under 
Fuci). From the collection of Col. Montagu. 
5. Amphithoe obtusata. Leach’s Coast-Screw. 
Amphithoe obtusata, M. Edw. 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. Fahr. Faun. Grcenl. 
Amphithoe, pt. Kroger. 
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. Falmouth. Collected by Mr. John Cranch. 
e. Cornwall. Presented by W. P. Cocks, Esq. 
6. GAMMARUS. 
Gammarus, Latr. Gen. Crust, et Ins. i. p. 58 (pulex) ; Leach, Ed. 
Enc. vii. p. 402. 
Mara, pt. Leach, Ed. Enc. vii. p. 403. 
Gammarus, pt. Fahr. 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, Fahr. Ent. Syst. ii. p. 516; Leach, Ed. Enc. 
xi. p. 359 ; Desm. Cons. p. 267; Kroger, Gronl. Amfp.; 
Rathke, Faun. Crim. t. 5, f. 11 — 14 ; M. Edw. Crust, ii. p. 44. 
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