177 
179 
180 
8. 
182. 
S) 
183 
184 
FISHES. 123 
. Carassius vulgaris Vi/ss. Crucian Carp. 
This species and its variety, C. gibelio 42, or Prussian 
Carp, have been introduced into numerous ponds. 
. Carassius auratus (Z.). Gold Carp. 
Introduced into ponds and reservoirs. 
. Barbus vulgaris ven. Barbel. 
Freshwater resident, locally distributed in the rivers of the 
central plain, except the Derwent and the polluted waters 
of the Aire, Calder, Dearne, and Don. 
. Gobio fluviatilis #/’em. Gudgeon. 
Freshwater resident, common and generally distributed in 
rivers and ponds. 
Sub-fam. LE UCISCINA. 
Leuciscus rutilus (Z.). Roach. 
Freshwater resident, abundant and generally distributed, 
except in the North-western Fell district and the polluted 
rivers, from which it is absent. Has been introduced into 
canals, reservoirs, and ponds. 
Leuciscus cephalus (Z.). * Chub. 
Freshwater resident, abundant and generally distributed. 
Absent from the rivers of the north-west, and from the 
polluted portions of those of the manufacturing districts. 
. Leuciscus vulgaris vem. Dace. 
Freshwater resident, generally distributed and common, being 
absent only from polluted rivers and hill-streams. 
. Leuciscus erythrophthalmus (Z.). Rudd. 
Freshwater resident, abundant in Holderness, where it occurs 
in ponds. Reported as in Lake Semerwater, and ponds 
in other parts of the county, and also in the Codbeck. A 
few have been caught in the Ouse at York. 
