306 MR. F. DAY ON THE FISHES OF COCHIN. [Mar. 14, 
the length of the head, eyes 1} diameter apart, 1 diameter from end 
of snout. 
Profile more convex on ventral than on dorsal aspect. 
Gape of mouth large, triangular, directed forwards, compressed 
from side to side. Lower jaw slightly the longest, terminating in a 
knob, which is received into the apex of a triangle formed by the 
meeting of the intermaxillaries. Lips not fleshy; jaws entirely 
covered ; some pores along the margin of the lower lip, on the snout, 
and on the anterior margin of the preorbital. Sulcus single, not 
deep. Snout rather enlarged at extremity, and divided by a small 
fissure from the margin of the preeorbital bone, which last is penta- 
gonal, with the inferior border the longest. Nostrils rather closer 
to orbit than to end of snout, divided from one another by a mem- 
branous valve ; posterior broad, open; anterior with raised margins. 
Upper surface of head rather convex from side to side. 
Fins. Dorsal commences nearly midway between snout and base 
of caudal, and opposite the middle of the ventrals; it extends back- 
wards as far as opposite to the fourth ray of the anal. Caudal 
deeply forked, lower lobe the longest. Anterior margins of dorsal 
and anal the highest; the former with a slightly convex, the latter 
with a concave margin. Base of dorsal scaleless, of anal scaled ; 
two long free scales at base of ventral; some scales at base of caudal. 
Scales large ; lateral line descending nearly to the abdomen. 
Pharyngeal teeth in three rows, curved, slightly hooked at their ex- 
tremities and pointed, arranged in the following order:—4, 4, 2/2,4, 5. 
Colours. Back bluish grey, fading to whitish along the sides. Ab- 
domen silvery. Some bright blue spots along the sides. Dorsal, 
anal, and pectoral fins margined with white ; their bases dark grey. 
Caudal grey in the centre, whitish externally. 
I have named this fish after the Rev. H. Baker, jun., who obtained 
several specimens of it from Mundikyum. 
The next fish is a Perilampus (M‘Clelland) ; but Bleeker’s de- 
scription of the genus does not coincide with this one at least of the 
species in South India. He observes, “scales large,” whereas they 
are mostly of middle size or small; he also places the genus amongst 
the Acheilognathini, a group which he has given as having pharyn- 
geal teeth in one row; but the species of which I have brought 
some specimens from Cochin have them in three series. 
PERILAMPUS AUROLINEATUS, Day, sp. nov. 
B. ii.. D, 2/12, (P14 2. PAs 3/1 C19, Lee 
ditt. 7/2. 
Length of specimens from 254, to 248; inches. ~ 
Length of head nearly 1, of pectoral 4, of base of dorsal 4, of base 
of anal 1, of caudal + of the total length. Height of head 4, of 
body 4, of dorsal 4, of anal + of total length. Diameter of eye § of 
length of head, eyes ? of a diameter from end of snout, 1 diameter 
apart. 
