1104 Catalogue of Malayan Fishes. [Nov. 



of the pectorals. The two above mentioned individuals were observed 

 at Pinang in June, 1843, and in February, 1845. 



THACHYNOTUS QUADRIPUNCTATUS, (Rtippell.) 



Csesiomorus quadripunctatus, Ruppell: Atlas, p. 90, Tab. 24. 



Fig. 1. 



Trachinotus quadripunctatus, Cuv. and Val. VIII. 434. 



Head above and back silvery greyish green, lighter on the sides to a 

 little above the lateral line; rest of the sides, abdomen, opercles and 

 cheeks silvery white ; on the lateral line 2 to 5 distant black spots ; 

 fins hyaline; point of second dorsal and anal, and lobes of caudal 

 black. Irish silvery, greenish towards the orbit. 



D 6—1/22, C 17f, A 2—1/22, V 1/5, P 17, Br. VII. 



Habit. — Sea of Pinang. 



Massaua, (Red Sea,) Seychelle Islands. 



Total length : 7f inch. 



The length of the head is 4J- in the total, measured to the centre of 

 the posterior margin of the caudal ; the depth at the occiput equals the 

 length of the head. The diameter of the orbit is 3|- in the length of 

 the head. The nostrils, the infraorbital and the preopercle resemble 

 T. mooJcalee. In both jaws, on the vomer and palatals appear card- 

 like teeth. The lateral line is slightly arched downwards till the origin 

 of the second dorsal fin, from whence it proceeds straight in the mid- 

 dle of the body towards the caudal. The scales are minute, scarcely 

 perceptible. In the individual examined at Pinang the point of the 

 immoveable spine, preceding the first dorsal, projected far beyond the 

 integuments. On the left lateral line appeared four small black spots : 

 the first opposite the 4th dorsal spine, the second, the largest of all, 

 opposite the root of the second dorsal, the third opposite the middle of, 

 and the fourth opposite the termination of the second dorsal. On the 

 right lateral line, however, the last spot was absent. The individual 

 described by Dr. Ruppell had on each side two such spots, corre- 

 sponding to the second and third in the present. In those examined by 

 M. M. Cuvier and Valenciennes the number of spots varied from 3 to 

 5. The greatest vertical diameter of the body in front of the second 

 dorsal is 2f in the total length, measured to the centre of the poste- 

 rior margin of the caudal. The length of the point of the second 

 dorsal equals the extent of the base of the fin ; that of the anal 



