118 CATALOGUE OK FISH. 



semble the palatine teeth in the principal series ; and there is aiso 

 a row of uneven granular teeth on the outside, and two irregular 

 rows on the inside. Twelve subulate, but not very acute teetii 

 border the end of the mandible, and there are 2 taller subulate 

 ones within the half circle on each side. 



Eye large, placed a diameter and a half of the orbit from the 

 end of the snout, and half a diameter from the corner of the 

 mouth. Lateral line a series of short tubes, each having a porous 

 mouth posteriorly, and beneath an oblong mark. Tlie gill-rays are 

 seventeen ; and the dorsal commences over tlie gill-opening. {Rlch- 

 I rdson.) 



Length, 27 in. To anus, 13'5 in. Length of rictus of mouth, 

 a 5 in. 



A dried skin preserved in the British Museum. 



Of unknown origin. 



207? CoNGRUs BKEvrcuspis, Rich. 



Congrus brevicuspis, Rich., Ereh. d Terr. p. 111. 



Nasal disk bordered on its anferior half by about 10 moderately 

 tall and strong subulate acute teeth, and in the middle of the disk 

 there are 9 small conical acute ones, placed so as to represent a 

 cross with short lateral arms. The depression of the vomerine 

 ridge next the nasal bone is considerable. The 9 principal vome- 

 rine teeth have short acute middle cusps, with larger rounded late- 

 ral ones than in protervus, and they are flanked on each side by a 

 row of compressed, rounded, oblique cutting ones, neither closely 

 nor evenly set. The outer row of palatine teeth is composed of 

 evenly-set, compressed, obtuse cutting teeth and the long elliptical 

 dental plate is wholly covered with innumerable minute rounded 

 teeth, without any smooth space in the middle. The palatines 

 abut against the vomer at the si.xth tooth. The mandibular teeth are 

 like the vomerine ones; but they are not so regular, the alternate 

 ones being often, but not uniformly, lower. The outer row is com- 

 posed of even, close-set, semicircular, sharp-edged small ones, ap- 

 plied to the base of the chief row, and the inner ones can scarcely 

 be detected. The disk, at the end of the mandible, is armed by 

 5 or 6 acute, subulate, marginal teeth, and '6 taller ones within on 

 each side, the posterior pair being high and stout. 



The eye is placed three diameters of the orbit from the end of 

 the snout, and a diameter before the corner of the mouth, whose 

 gape is equal to five diameters of the orbit. The space between 

 the eyes is transversely convex, and its breadth rather exceeds the 

 vertical diameter of the orbit. The pectoral is elliptical and long; 

 and the dorsal commences over the gill-opening. 



Colour, in s[iirits, pale brown above, silvery beneath. The fins 

 silvery and black-edged. (Richardson.) 



