62 



SILTJHID^E. 



1. Pangasius buchanani. 



Pimelodus pangasius, Ham. Buck. pp. 186, 378. pi. 33. fig. 52. 

 Pangasius buchanani, Cuv. 8f Vol. xv. p. 45. pi. 425 ; Sleek. Verhand. 

 Batav. Genootsch. xxv., Hindost. p. 118. 



B. 9-10. D. 1/7. A. 31. P. 1/11. 



Head granulated above ; the occipital process is not quite twice 

 as long as broad at the base. Snout obtusely rounded. Barbels 

 shorter than the head ; dorsal and pectoral spines serrated, the latter 

 as long, or nearly as long, as the head. 



Ganges. 



a-b. Three feet long : stuffed. Ganges. 



2. Pangasius djambal. 



Bleeker, Verhand. Batav. Genootsch. xxi., Silur. Batav. p. 21 ; Prodr. 

 Silur. p. 181 ; and Atl. Ichth. Silur. p. 73. tab. 76. 



B. 9. D. 1/6. A. 30-32. P. 1/12-13. 



Scarcely different from P. buchanani. Head granulated above ; the 

 occipital process is more than twice as long as broad at the base. 

 Snout obtusely rounded. Barbels shorter than the head. Dorsal and 

 pectoral spines serrated, shorter than the head. 



Java. 



a. Fine specimen. From Dr. P. v. Bleeker's Collection. 



This specimen has the vomerine teeth, which are represented by 

 Dr. P. v. Bleeker as forming two separate patches, confluent into 

 one, without the slightest trace of a median division. This is 

 another proof that Bleeker's Pseudojpangasius is not entitled to a 

 place in the system. 



3. Pangasius macronema. 



Bleeker, Nat. Tydschr. Nederl. Ind. i. p. 11 j Prodr. Silur. p. 183; and 

 Atl. Ichth. Silur. p. 74. tab. 75. fig. 3. 



B. 10-11. D. 1/7. A. 31-33. P. 1/12. 



The height of the body is two-ninths or one-fourth of the total 

 length (without caudal), the length of the head two-ninths or one- 

 fifth. Head covered with smooth skin above ; snout obtusely rounded. 

 The diameter of the eye is about one-third of the length of the head. 

 The maxillary barbels extend to, or beyond, the end of the pectorals, 

 those of the mandible beyond their base. The teeth on the palate 

 are small, villiform, and form four small separate patches. The dor- 

 sal fin is lower than the body; its spine is of moderate strength, 

 serrated, three-fourths of the length of the head. Pectorals scarcely 

 shorter than the head, with their spine as long as that of the dor- 

 sal fin. 



Borneo and Java. 



a. Type of the species. From Dr. P. v. Bleeker's Collection. 



