154 MR. J. D. OGILBY ON FISHES [Mar. 19, 
slightly beyond the upper, and the cleft of the mouth is very oblique; 
the maxilla reaches to the posterior fourth of the orbit in one 
example, while in the other it only extends to beneath the middle 
of the eye; it is very much dilated posteriorly, its greatest breadth 
being five sixths of the diameter of the eye, while it is twice as 
broad as the preorbital. The nostril is provided with two openings 
placed close together, the posterior of which is very much the 
larger. The opercle is armed with three spines, of which the 
middle is much the longest, and the upper so completely hidden as 
to be difficult to find; the vertical limb and angle of the preopercle 
are evenly serrated, the horizontal limb being entire. Teeth—there 
are two or three small canines in front of each ramus of the lower 
jaw, and one or two much longer and stronger lateral ones, while 
between and behind these is a broad band of villiform teeth ; in the 
upper jaw there are two canines in front of each ramus, one placed 
behind the other, the inner being much the stronger, and there is a 
row of stout cardiform teeth outside the villiform band; the vomer 
is furnished with a triangular patch, and the palatines with a narrow 
band of minute teeth, the tongue being smooth. Fins—the dorsal 
commences above the middle of the operele ; the spines are rather 
weak ; the first four sevenths of the length of the second, which is 
about three fifths of that of the elongated third spine; the remain- 
ing ones are subequal in length, and not so high as the rays, some 
of which, near the end of the fin, exceed even the third spine; the 
base of the spinous is slightly less than that of the soft portion of 
the fin, and the interspinal membrane is but little notched and 
possesses a short filiform appendage. The third anal spine is the 
longest, rather less than one half of the length of the head, while its 
anterior rays are produced, so as to be three eighths longer than the 
longest dorsal ray, thus causing its outer edge to be deeply concave. 
The ventral spine is one fourth longer than the third anal, and the 
second ray is greatly prolonged, reaching, when entire, to the end of 
the base of the anal fin, and being one and a half times the length 
of the head. The pectoral fin is rather pointed, reaches to opposite 
the vent, and is equal in length to the head. The caudal fin is 
deeply forked, with the outer rays of each lobe filiform, and its 
length is three and two fifths in the total. Scales—of moderate 
size, finely ctenoid, and firmly adherent; the soft dorsal and anal 
fins are set in scaly sheaths, and, along with the other fins, are 
covered with smaller scales upon their basal half, and the entire head 
is clothed with scales of less size than those of the body. The 
lateral line has a gradual curve parallel to the line of the back. 
Colours—reddish brown, the fins with a yellowish tinge, especially 
on the outer half; a curved silvery (pale blue in life) streak runs 
from the cheek to the base of the caudal fin, near and parallel to 
the ventral profile, while a second is present, but not so strongly 
marked, from behind the base of the pectoral to that of the caudal 
fin}. 
* Both these lines have entirely disappeared in my specimens, which have 
been two years in spirit. 
