59. ARirs. 



141 



the head. Crown of the head granulated, the granules being arranged 

 in radiating series ; occipital plate tri- 

 angular, elevated into an obtuse ridge 

 along its middle, rather broader than 

 long ; the basal bone of the dorsal spine 

 is of moderate width, narrowest in the 

 middle, each half slightly bent into an 

 S-shaped form. Dorsal spine strong, 

 as long as the head without snout, 

 granulated in front and obtusely ser- 

 rated behind, as high as the soft dor- 

 sal or as the body underneath. Adi- 

 pose fin somewhat shorter than the 

 dorsal. Pectoral sj^ine as long as that 

 of the dorsal fin, granulated exteriorly 

 and serrated interiorly. Ventral fms 

 much shorter than the pectorals, not 

 extending on to the anal. Caudal 

 deeply forked. 

 Calcutta. 



a. Twenty-six inches long : stuffed. Calcutta. From the Collection 



of the East India Company. 



b. Twenty-four inches long : stuffed. 



3. Arius sagor. 



Pimelodus sagor, Ham. Bxch. p. 169. 



Bagrus sondaicus, Ciiv. !<,• Vol. xiv. p. 444 ; Cant. Mai. Fish. p. 25.5. 



javensis, C'uv. Sf Val. xiv. p. 445. 



sagor, Cuv. ^- Val. xiv. p. 446. 



Hexanematichthys sundaicus, Bleek. Prodr. Sihir. p. 127, and Atl. 

 Ichth. SUur. p. 26. tab. 62. 



D. 1/7. A. 18. P. 1/11. 

 The height of the body is contained nearly six times in the total 

 length (without caudal), the length of the head thi-ee times and three- 

 fourths. Head much depressed, much broader than high, its greatest 

 width being equal to its length without snout. 

 The teeth on the palate are in two pairs of 

 patches, which are confluent, or separated by 

 very narrow interspaces ; the vomerine pair 

 is only half as large as that of the palatine 

 bones. Six barbels ; those of the maxillaries 

 extend to the end, the outer ones of the man- 

 dible to the middle of the pectoral fin. Nearly the whole of the 

 upper surface of the head and of the neck is granulated, the granules 

 being arranged in radiating or concentric lines. Occipital plate 

 lai'ge. as broad as long, subsemicircular ; the basal bone of the dor- 

 sal spine is well developed, butterfly-shaped. Dorsal spine strong, 

 granulated along its anterior surface, scarcely serrated behind, its 

 length being contained once and two-thirds in that of the head : 



