182 SI LURID Ji. 



3. Osteogenic) sus macrocephalus. 



Osteogeneiosus macrocephalus, Bleek. Verh. Bat. Gen. xxi. Silur. But. 

 p. 49 ; Prodr. Silur. p. 124 ; and Ail. Ichth. Silur. p. 47. tab. 64. 



longiceps, Bleek. Verh. Bat. Gen. xxi. 1. c. p. 50. 



ingluvies, Bleek. I. c. 



D. 1/7. A. 19-21. P. g -^. 



The height of the body is contained six times and a half or seven 

 times and a half in the total length (with the caudal), the length of 

 the head four times. Head scarcely granulated above, broader than 

 high, its depth being one-half of its length. The diameter of the 

 eye is two-fifths of the width of the interorbital space. Occipital 

 process thrice as long as broad. The maxillary barbels extend to 

 the root of the pectoral. 



Rivers of Java and Madura. 

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



68. BATRACHOCEPHALUS *. 

 Batrachocephalus, Bleek. Verh. Bat. Gen. xxi. Silur. Bat. p. 52. 

 Adipose fin short ; a short dorsal fin with a pungent spine and 

 with seven soft rays ; anal fin short. Barbels two, rudimentary, 

 inserted at the chin ; no maxillary barbels. The lower jaw is the 

 longer ; cleft of the mouth wide. All the teeth obtusely conical, in 

 two concentric bands in each of the jaws ; none on the vomer ; a 

 broad longitudinal band on each palatine bone. Eyes with a free 

 orbital margin. Gill-membranes united at the throat, without notch. 

 Caudal forked ; ventral rays six. 

 East Indies. 



1. Batrachocephalus mino. 



Ageneiosus mino, Ham. Buch. pp. 158, 375. 



Batrachocephalus ageneiosus, Meek. Verh. Bat. Gen. xxi. Silur. Bat. 



p. 52. 

 . micropogon, Bleek. I. c. ; Prodr. Silur. p. 118 ; and Atl. Ichth. 



Silur. p. 48. tab. 65. fig. 1. 



D. 1/7. A. 19. P. 1/9. 



The cleft of the mouth extends to behind the centre of the orbit. 

 Occipital process much longer than broad at its base ; basal bone of 

 the dorsal spine crescent-shaped, narrow. Dorsal and pectoral spines 

 serrated ; adipose fin shorter than dorsal. 



Ganges ; rivers of Java and Sumatra. 

 a. Fine specimen. Purchased of Mr. Frank. 



* 1. Galeichthys stanneus, Richards. Ichth. Chin. p. 284, may well be erased 

 from the ichthyological system ; on examining the figure to which that 

 name has been given, we see that it was taken from a fish evidently 

 very similar to B. mino, but with longer chin-barbels. The parts of 

 the mouth are entirely misrepresented, the lines originally indicating 

 the lateral cleft of the mouth having been afterwards (probably by the 

 colourer) altered into a maxillary barbel! The figure in its present 

 state reminds us of the South-American Asterophysus. 



