CATALOG DE OF BRITISH CRUSTACEA. 
69 
2. ASELLUS. 
Asellus, Geoff. Ins. Par. ii. p. 671 (1762) ; Latr. Gen. Crust, et Ins. 
i. p. 63. 
Oniscus sp. Linn. Syst. Nat. 
Squilla, sp. Degeer, Mem. vii. 
Entomon, sp. Klein. 
Cymothoa, sp. Fabr. Ent. Syst. ii. p. 505. 
Idotea, sp. Fabr. Ent. Syst. Suppl. p. 303. 
1. Asellus aquaticus. Water Hog-louse. 
Asellus aquaticus, Olivi, Enc. Meth.'vr. p. 252 ; Leach , Linn. Trans- 
xi. p. 373 ; Guerin , Icon. t. 31, f. 3; Geoff. Ins. Par. ii. t. 22, 
f. 2. 
Oniscus aquaticus, Linn. Syst. Nat. ii. p. 1061. 
Squilla asellus, Degeer , vii. t. 31, f. 1. 
Cymothoa aquatica, Fabr. Ent. Syst. ii. p. 505. 
Asellus vulgaris, Latr. Hist. Nat. Crust, vii. p. 359, t. 58, f. 1 ; 
Desm. Cons. p. 314, t. 49, f. 1,2; M. Edw. Crust, iii. p. 146; 
Cuv. R. A. (Croch.) t. 70, bis. 
Great Britain and Ireland. 
a — d. Near London (Fresh-water). 
3. .LERA. 
Jaera, Leach , Ed. Enc. vii. p. 434. 
Oniscus, sp. Montagu , MSS. 
1. JiERA albifroxs. White- fronted Hog-louse. 
Jaera albifrons, Leach , Ed. Enc. vii. p. 434; Linn. Trans, xi. 
p. 373; Desm. Cons. p. 316 ; M. Edw. Crust, iii. p. 150 ; Thomp. 
Ann. Nat. Hist. xx. p. 245. 
Oniscus albifrons, Montagu, MSS. 
a — A. Devon. From the collection of Col. Montagu. 
4. MUNNA. 
Munna, Kroyer , Nat. Tidslc. ii. p. 612. 
