288 



greyish white below, fins more or less reddish hyaline. Distal 

 part of dorsal, adipose fin, anal and caudal darkish as also 

 the upper surface of the paired fins. Lenght to 1000 mm. 



Nomen indig. : Ikan manjong utik, Manjong Karbo, 

 Manjong tonggol (Malay, and Sundan.), Gunggut (Banjermassin). 



Habitat: Java (Batavia !, Bantam, Tjiringin, Pasuruan, 

 Besuki, Palabuan); Sumatra (Telokbetong, Benkulen, Padang, 

 Tiku, Siboga); Nias; Singapore!; Bintang; Borneo (Banjer- 

 massin); Celebes (Macassar); Sumba!; Timor!; Rotti!; Mysore; 

 New Guinea!. Australia, New Caledonia, Philippines, Tonkin, 

 westward to the Red Sea and t coast of Zanzibar. 



In sea. 



Note: Ariodes aeneus described by Sauvage (Bull. Soc. 

 Philomatique (7) VII. 1883, p. 160) from B Ile Raffles: Voyage 

 de la Zelee" is perhaps a specimen of Arms thalassinus, in 

 which the 2 anterior quadrangular patches on each side, which 

 normally touch each other, are united. But it is impossible 

 to decide this, as the only specimen is not to be found in 

 the Paris Museum, as Dr. PELLEGRIN has the kindness to 

 inform us. 



10. Arius gagorides (C. V.). 



? Pimelodus sona Hamilton Buchanan, Fishes Ganges, 1822, p. 172, 376. 



Bagrus gagorides Cuvier & Valenciennes, Hist. Nat. Poiss. XIV. 1839, p. 441. 



Bagrus trachipomus Cuvier & Valenciennes, Hist. Nat. Poiss. XIV. 1839, p. 443. 



Arius gagorides Giinther, Cat. Brit. Mus. V. 1864, p. 140. 



Arius sona Day, Fishes of India, 4. 1878 1 888, p. 462. 



Arius gagorides Duncker, Mitth. naturhist. Mus. Hamburg, XXI. 1904, p. 174. 



B. 6; D. I. 7; A. 17; P. i. 12; V. 6. 



Height rather more than 4, head 3'/ 2 , much broader than 

 high, its greatest width being equal to the distance of the 

 hinder nostril from the end of the opercle. Crown of head 

 granulated, the granules being arranged in radiating series. 

 Median fontanel wide, but it does not extend to the base of 

 the occipital process, which is triangular, elevated into an 

 obtuse ridge along its middle and rather broader than long; 

 the basal bone of the dorsal spine is of moderate width, nar- 

 rowest in the middle, each half slightly bent into an S-shaped 

 form. Maxillary barbels reach to end of head or not so far, 

 mandibular ones shorter. Dorsal spine strong, as long as head 

 without snout, granulated in front and obtusely serrated be- 



