313 



V f 



conspicuously shorter. Height of pointed dorsal much longer 

 than head without snout, its spine terminates in a soft filament 

 and is rather weak, corrugated and dentated on both sides 

 and somewhat shorter than head without snout. Adipose fin 

 small, its base rather shorter than that of the dorsal, about 

 thrice its distance from it, situated above the middle of the 

 anal. Height of anal, the hindborder of which is slightly 

 concave, is less than the length of the ventrals, which extend 

 to its origin. Pectorals more than 

 2 / 3 of the head, their weak spine is 

 serrated on both sides, especially 

 on its hindborder; nearly as long 

 as that of the dorsal fin. Caudal 

 deeply incised, pointed upperlobe 

 the longer. Villiform teeth in the 

 jaws in an arcuate band, those on 

 the palate conical and pointed, forming two irregular, triangular, 

 widely separate patches, the point of which is directed back- 

 wards. 10 stiff, somewhat flattened gillrakers, shorter than bran- 

 chial filaments. Brownish above, whitish below, fins yellowish, 

 with a darkish hue. Length 225 mm. 



Nomen in dig. : Ikan manjong utik (Malay. Batav.). 



Habitat: Java (Batavia !). Borneo (mouth of river Kapuas). 



In sea and estuaries. 



28. Arius doriae Vine. 



Arius Doriae Vinciguerra, Ann. Mus. Civ. Geneva, XVI. 1880, p. 174. 



D. i. 7; A. 1718; P. I. 9. 



Height 5; head 3 '/a, its width about i x / 3 in its length. 

 Headshields smooth, only the occipital part with few granules 

 and rugosities. Occipital process triangular and about as long 

 as broad or a little longer than broad at its base. Its hind- 

 border is totally united with the crescent-shaped basal bone 

 of the dorsal spine, the ends of which are prolonged. The 

 superficial median fontanel begins on the snout and ends in 

 a point at the base of the occipital process. Eyes 8 9, situated 

 in the anterior third of the head, 3 ! / 2 times in the convex 

 interorbital space. The broad snout is rounded, its anterior 

 margin arcuate, its length a little more than J /s f tne head. 

 Maxillary barbels reaching the middle of the pectorals, mandi- 



