31. MACROS ES. 83 



length of the head, granulated in front and serrated behind. The 

 length of the adipose fin equals its distance from the dorsal, and is 

 rather more than that of the base of the dorsal. Pectorals scarcely- 

 shorter than the head, with a strong, serrated spine ; ventrals shorter 

 than pectorals. 



Borneo and Sumatra ; Siam. 



a. One of the typical specimens. From Dr. P. v. Bleeker's Collection 

 6. Siam. Purchased of Mr. Jamrach. 



14. Macrones wyckii. 



Bagrus wyckii, Bleek. Prodr. Silur. p. 156. 



Hemibagrus wyckii, Bleek. Ail. Ichth. Silur. p. 57. tab. 72. 



D. 1/7. A. 13. P. 1/11. 



The height of the body is contained five times in the total length 

 (without caudal), the length of the head three times and two-fifths 

 or three times and a fourth ; head broader than high, its greatest 

 width being contained once and a third in its length. Head smooth 

 above, not granulated or striated ; occipital process short, not extend- 

 ing on to the basal bone of the dorsal spine. Teeth on the palate 

 in a horseshoe-like band. The maxillary barbels do not extend on 

 to the dorsal fin. Dorsal fin not higher, than* the body ; its spine is 

 half as long as the head, granulated in front and serrated behind. 

 Adipose fin much longer than, and remote from, the dorsal. Pectoral 

 spine* strongly s'errated interiorly, rather shorter than that of the 

 dorsal fin. Ventrals shorter than pectorals. 



River Tjitarum (Java). 



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



15. Macrones batasio. 



Pimelodus batasio, Ham. Buch. pp. 179, 377 (not fig.). 



Batasio buchanani, Blyth, Joum. As. Soc. Beng. 1861, xxix. p. 150. 



D. 1/7. A. 16. 



Barbels shorter than the head ; two longitudinal stripes on each 

 side, dotted with black ; a blackish spot on the shoulder. (H. B.) 

 River Tista. 



16. Macrones affinis. 



Batasio affinis, Blyth, Joum. As. Soc. Beng. 1861, xxix. p. 150. 

 D. 1/7. A. 12. 

 Maxillary barbels scarcely passing the eye ; mandibulary barbels 

 minute. Body with three or four indistinct broad blackish cross- 

 bands ; a black spot on the shoulder, and another on the dorsal fin. 

 (Blyth.) 

 Tenasserim. 



inches. 



Total length 3 j 



Height of the body 4 



o 2 



