CATALOGUE OF BRITISH CRUSTACEA. 69 



2. ASELLUS. 



Asellus, Geoff. Ins. Par. ii. p. 671 (1762) ; Lair. 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.iv. 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. J^IRA. 



Jaera, Leach, Ed. Enc. vii. p. 434. 

 Oniscus, sp. Montagu, MSS. 



1. J^ERA ALBIFRONS. White- fron ted Hog-louse. 



Jeera albifrons, Leach, Ed. Enc. vii. p. 434; Linn. Trans, xi. 

 p. 373 ; Desm. Cons. p. 316 ; M. Ediv. Crust, iii. p. 150 ; Thomp. 

 Ann. Nat. Hist. xx. p. 245. 



Oniscus albifrons, Montagu, MSS. 



a h. Devon. From the collection of Col. Montagu. 



4. MUNNA. 

 Munna, Kroyer, Nat. Tidsk. ii. p. 612. 



