1296 Catalogue of Malayan Fishes. [Dec. 



back than the angle of the mouth, appears a transversal series of 8 to 

 10 pores; from the middle of each series proceeds forwards another 

 shorter, longitudinal one, consisting of 3 to 5 pores. The distance 

 from the muzzle to the angle of the mouth is one longitudinal diameter 

 of the eye less than one half of the length of the head. The lips are 

 thin, membranous, and closely adhering to the jaws. In the upper 

 jaw appear three very close series of small conical teeth with the apex 

 compressed and trenchant. The external series is excessively minute, 

 and extends from the angle of the mouth to beneath the middle of the 

 eye ; the teeth of the second are about double the size of the former, 

 with which they are in close contact, but they extend farther forwards 

 to between the nasal apertures, where they coalesce with the external 

 series of the teeth of the vomer ; the third, internal, series consists of 

 excessively minute conical teeth, distant among themselves and a little 

 removed from the second series ; they extend as far as the external 

 series. Immediately in front of the notch the muzzle forms a small 

 round space, the margin of which is armed with 4, 5, or 6 distant 

 conical teeth, which are about -j of the diameter of the eye. From 

 the middle of the muzzle commences a short single series of 6 or 7 

 small conical teeth ; which, as they continue along the middle of the 

 vomer, become distant, much longer, compressed towards the apex and 

 with trenchant margins. The number of these teeth varies with age 

 from 7 to 15, of which the longest are about \ of the diameter of the 

 eye. In young individuals the two or three posterior ones are much 

 compressed and tricuspidate. From the first long tooth commences a 

 single close series of teeth which continue on each side of the vomer, 

 but join each other a little behind the central series, which terminates 

 between the eyes. The marginal teeth of the vomer are a little larger 

 than the middle series of the jaw which they resemble in form. The 

 lower jaw is much shorter than the upper : the symphysis is widen- 

 ed into a small rounded disk, on each side of which appear two or 

 three long, distant, conical teeth, situated within the external series. 

 The latter consists of much smaller outwards directed, distant, conical 

 teeth, which beneath the eye decrease and become much closer. The 

 middle series, headed by the longer ones behind the symphysis, con- 

 sists of close, erect, conical teeth, with compressed trenchant apex. 

 From beneath the eye the interval between the external and middle 



