1338 Catalogue of Malayan Fishes. [Dec. 



orbit, between the two dorsals, on the cheeks, throat and abdomen 

 single short, longitudinal or oblique, ultramarine bands ; the rest of 

 the head and body with numerous distant rounded ultramarine spots ; 

 first and second dorsal spine, and their membrane, and the caudal rays 

 yellowish olive, dotted with black ; caudal membrane pale greenish 

 white, densely dotted with brown and with four indistinct reddish 

 brown bands, of which the anterior a little behind the root of the fin, 

 the fourth on the posterior margin ; rest of the fins hyaline. Iris 

 golden bronze, orbital margin blackish. 



D 2—46, C 10^., A 49, P 14, Br. VI. 



Habit. — Sea ofPinang. 



Indian Ocean, Canary Islands, Carribean Sea, China Sea. 



Total length : 9f inch. 



The form is elongated lanceolate, broader at the tail than at the 

 muzzle. The length of the head is contained 3f times in the total. The 

 length of the head, from the chin to a little behind the orbit, is contained 

 3f times in the total. The eye is situated between the first dorsal spine 

 and the upper extremity of the gill-opening, a little closer to the former 

 than to the latter ; the horizontal diameter is \ of the head. From the 

 muzzle the profile gently ascends to the first dorsal spine, the corres- 

 ponding profile, from the chin to the anus, describes a gently rising 

 arch, so that the outline of the head is elongated conical with the 

 point truncated. The horizontal distance between the eyes equals 

 two diameters. The nostrils, lips, teeth and tongue resemble those 

 organs of A. obliteratus. The upper extremity of the oblique linear 

 gill-opening is situated in the middle between the centre of the lower 

 orbital margin and the root of the pectorals ; the lower extremity extends 

 to a little in front of the orbit ; the length equals the horizontal diameter 

 of the eye. The first dorsal spine is slender and flexible and covered 

 with granules like those of the body ; its length is J of its distance from 

 the muzzle, which is contained A\ times in the total length. The 

 membrane is small completely hiding the minute second dorsal spine. 

 The groove of the back is ^ of the length of the first spine which, however, 

 does not sufficiently recline, so as to come in contact with the back. 

 The interval between the two dorsals ascends gently backwards, and 

 equals the distance from the muzzle to the anterior margin of the orbit. 

 The posterior dorsal is low, the longest rays exceeding the horizontal 



