1. TIIKUAPON. 281 



c. Young. Singapore. 



d. Adult. Moluccas. 



e. Adult. Purchased of M. Piirzudaki. 

 /. Air-bladder of specimen a. 



Ski'h'tun. — The general structure being the same as in Th. servus, 

 I only give descriptions of those parts which show the specific 

 difference. The breadth of the frontal bones between the eyes is 

 narrower ; those bones do not taper in front, but show a sinuous 

 lateral margin from the angle of the orbit. The teeth in the 

 external series of the iuterniaxillary are scarcely larger tlian those 

 of the villiform band behind, and very numerous ; the lower jaw 

 has no larger teeth whatever. Vomer edentulous. Suboperculum 

 without notch, interoperculum not denticulated. The angle of the 

 pracoperculum is still more obtuse ; the axis of the lower limb is 

 prolonged into a long spine, not much smaller than that of the 

 operculum ; there are two smaller spines above this long one, 

 directed upwards, and two below, directed backwards ; all the lower 

 limb is finely serrated. The foui-th vertebra shows the same pecu- 

 liarity as in the preceding species ; but not the second rib, which 

 is like the succeeding ones. 



11. Therapon ghebul. 



Therapou ghebul, (Uhretibcrq) Cuv. Sf Val. iii. p. 133; Bleeher, Perc. 

 p. 51. 



D- ^- A. ,„,' ,., . L. lat. 90-100. 

 10 10 (Cue. a; 



The height of the body is equal to the length of the head and 

 4i— 4i in the total. Snout as in Th. trivlttatus. Pracoperculum ser- 

 rated, with long spinous teeth at the angle ; operculum with two 

 spines, the upper of which is short, the lower moderately long. 

 Greenish, Avith four straight brown longitudinal bands, the third of 

 which extends from the muzzle to the tail ; the spinous portion of 

 the dorsal fin blackish between the thu-d and eighth spines ; two 

 blackish cross-bands obliquely crossing each lobe of the caudal. 



lied Sea ; Javanese Sea. 



12. Therapon oxyrhjrnchus. 



Temnt. 8f Schleg. Faun. Japon. p. 16. pi. 6. f. 3 ; Richards. Ichthyol. 

 China, p. 239; Bleek. Verhand. Batuv. Genootsch. xxvi. p. 64. 



D IH. A. |. L. lat. 55-60. L. transv. 15/25. Vert. 10/15. 



The height of the body is equal to the length of the head (oper- 

 cular spine included) and 3| in the total ; the snout is nearly 

 twice as long as the interspace between the eyes is broad. Prie- 

 opcrculum rounded, ydih long spinous teeth behind, longest at the 

 angle, smallest at the lower margin. Opercidum with two spines, 

 the lower of which is elongate. Greenish grey, witli four brown 

 longitudinal bands, the third running from the snout through the 



