80 
CATALOGUE OF BRITISH CRUSTACEA. 
2. .Ega tridens. Leach’s Three-toothed Fish-louse. 
Ega tridens, Leach , Linn. Trans, xi. p. 370 ; M. Eclw. Crust. 
iii. p. 242. 
a — c. Belfast. Presented by Col. Portlock, R.E. 
3. CONILERA. 
Conilera, Leach , Diet. Sc. Nat. xii. p. 348. 
1. Conilera cylindracea. Cylindrical Fish-louse. 
Oniscus cylindraceus, Mont. Linn. Trans, vii. p. 71, t. 6, f. 8. 
Conilera Montagui, Leach, Linn. Trans, xi. p. 370; Diet. Sc. Nat. 
xii. p. 349 ; Desm. Cons. p. 305 ; M. Edic. Crust, iii. p. 242. 
a. Devon From the collection of Col. Montagu. 
h. Cornwall. Presented by D. W. Mitchell, Esq. 
4. ROCINELA. 
Rocinela, Leach, Diet. Sc. Nat. xii. p. 349. 
Ega, pt. Johnston, Mag. Nat. Hist. vii. p. 233. 
1. Rocinela Danmoniensis. Devon Fish-louse. 
Rocinela Dantnoniensis, Leach, Diet. Sc. Nat. xii. p. 349 ) Desm. 
Cons. p. 304 ; M. Edw. Crust, iii. p. 244. 
a. Devon (Plymouth). From the collection of Dr. Leach. 
2. Rocinela monophthalma. Great-eyed Fish-louse. 
Rocinela monophthalma, M.Edw. Crust, iii. p. 244. 
Ega monophthalma, Johnston, Mag. Nat. Hist. vii. p. 233, f. 43. 
a. Berwick Bay (on Codfish). Presented by Dr. G. Johnston. 
b. Northumberland. Presented by R. Howse, Esq. 
