300 MR. F. DAY ON THE FISHES OF COCHIN. { Mar. 14, 
I received several specimens of this species from the Rev. H. 
Baker, jun., who discovered it at Mundikyum. I have named it 
after H. E. Sir W. Denison, K.C.B., the Governor of Madras. 
Rouwita pussuMiERI (Cuy. & Val.). 
Toolee (Mal.). 
Meine DS P17 Ve, 353s CO 1G? A aes 
irs, 9/7. 
Length of specimen 8,4, inches. 
Common in the Kurriavanoor River. They take surprising leaps 
when attempts are made to capture them with nets, sometimes 
springing completely over the heads of the boatmen, who are stand- 
ing up at the time. Immediately on being captured, their necks are 
broken with a stick. 
Fair eating ; much esteemed by the natives. 
CYCLOCHEILICHTHYS PINNAURATUS, Day, sp. nov. 
Bodie D5 5/ Bie nak Ade WY Na De itheet (Oy, Uns 2ha. (hada eees 
L. tr. 6/5. Cirri 4. 
Length of specimen 34, inches. 
Length of head above 4 of total; of base of dorsal 1, of base of 
anal ;/;, of caudal j of total length. Height of body 4, of head 4 
of total length. Diameter of eye j of length of head, eyes 1 dia- 
meter from end of snout, upwards of 1 diameter apart. 
Profile rises considerably to commencement of dorsal, thence sinks 
more gradually to the caudal. Abdomen not so convex as back. 
Body strongly compressed. 
Eyes situated in anterior half of the head; their upper surface 
does not reach the profile. Mouth directed forwards; lower jaw 
covered by the upper when the two are closed. Nostrils situated 
nearer to eye than to end of snout; posterior patent, divided by a 
membranous flap from the anterior, which is slightly tubular. Pree- 
orbital triangular ; apex directed forwards and inwards. Two cirri on 
snout, two-thirds the length of the maxillary pair, which are nearly 
as long as the orbit. ‘ 
Dorsal nearly triangular, with a row of scales at its base ; it com- 
mences midway between snout and base of caudal, and is slightly in 
advance of ventrals. Anal, which has also a row of scales at its 
base, is situated in the posterior fourth of the body. Dorsal spine 
finely serrated posteriorly for its upper three-fourths. Inferior mar- 
gin of anal concave. Caudal deeply lobed. Pectoral just reaches 
ventral. Ventral does not extend quite to anal. 
Scales with eight or ten lines arising from their anterior margin 
and rather diverging posteriorly. Lateral line in a single distinct 
tube, extending along half the exposed posterior extremity of each 
seale ; it first descends slightly for six scales ; opposite the centre of 
operculum it passes direct to the caudal. 
Colours. Silvery, with a large diffused black spot on lateral line, 
extending from the twenty-fourth to the twenty-eighth scale. A 
