1254 Catalogue of Malayan Fishes. [Nov, 



nating at the root of the caudal ; behind the posterior margin of 

 opercle an oblique black spot terminating at the root of the pectoral ; 

 cheeks and opercles silvery light greenish olive, with light blue and 

 rose-coloured reflections ; caudal bright yellow ; adipose dorsal pale 

 yellowish olive ; rest of the fins hyaline, anterior dorsal and ventral 

 rays pale yellowish. Iris silvery light greenish olive. 



D 12 or 13—1 (adipose), C 19f, A 15 or 16, V 8, P 12, Br. XII. 



Habit. — Sea of Pinang. 

 Japan. 



Total length : 6 inch. 



The head bears a general resemblance to the Gen. Trachinus, Linne* ; 

 the upper surface is scaleless, and like the infraorbitals full of minute 

 radiating asperities ; the central line of the head is smooth, and forms 

 a narrow sulcus between the orbital arched. The length of the head 

 is 4\ in the total length. The horizontal diameter of the orbit is \ of 

 the length of the head, the distance of the orbit from the muzzle is § 

 diameter, of which the distance across the forehead is ^. The angle 

 of the mouth is situated a little behind the anterior half of the head. 

 In each jaw appear but two series of teeth ; in other respects the den- 

 tition is similar to that of S. badi, but there are no teeth on the vomer. 

 The subopercle, the largest, is rounded, membranous behind, and sends 

 a narrow pointed process up between the triangular opercle and the 

 narrow crescent-shaped preopercle ; the interopercle is triangular and 

 but little smaller than the opercle. The vertical diameter at occiput 

 is 6 J, at the anterior dorsal \, and at the root of the caudal 1 5^ in 

 the total length. The body is covered by 1 1 longitudinal series of 

 scales resembling those of S. badi, but those immediately behind the 

 occiput have near the posterior margin some radiating short furrows. 

 The lateral line occupies the fifth series, and contains upwards of 60 

 scales ; those of the anterior half of the line consist of a small tubercle 

 terminating in 4 to 8 digitations ; the rest are simple, tubular. The line 

 itself is much less raised than in S. badi. The first ray of the anterior 

 dorsal is a little nearer to the muzzle than the last dorsal ray is to the root 

 of the caudal. The third ray, the longest, is T * T of the head and equals 

 the extent of the base, of which the posterior ray is a little more than £. 

 The ventrals are placed in front of the anterior dorsal ; the first ray, 

 the shortest, commences in the centre between the muzzle and the first 



