80 CATALOGUE OF BRITISH CRUSTACEA. 



2. .<EGA TRIDENS. Leach's Three-toothed Fish-louse. 



Mga, tridens, Leach, Linn. Trans, xi. p. 370 ; M. Edw. Crust. 

 iii. p. 242. 



a c. Belfast. Presented by Col. Portlock, R.E. 



3. CONILEEA. 



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. Nal. 

 xii. p. 349 ; Desm. Cons. p. 305 ; M. Edw. Crust, iii. p. 242. 



a. Devon From the collection of Col. Montagu. 



b. Cornwall. Presented by D. W. Mitchell, Esq. 



4. ROCINELA. 



Rocinela, Leach, Diet. Sc. Nat. xii. p. 349. 

 MgSL, pt. Johnston, Mag. Nat. Hist. vii. p. 233. 



1. ROCINELA DANMONIENSIS. Devon Fish-louse. 



Rocinela Danmoniensis, 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. 



JSga 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. 



