APPENDIX C. 
237 
Gill-openings rather narrow^, not extending downwards beyond the 
root of the pectoral. Ventrals with seven rays^ inserted below the 
posterior rays of the first dorsal fin. 
Rhimglanis typus, Gthr. 
D. i|9. A. 10. P.1/6. V. 7. 
j. 
The head is nearly as broad as high, and its length is somewhat 
more than the height of the body^ two-ninths of the total (without 
caudal) ; it is entirely osseous above, with a deep and broad longi- 
tudinal groove on the forehead. The snout is obtusely rounded in 
front, and rather longer than the diameter of the eye, which is 
two-sevenths of the length of the head, and equal to the width of 
the interorbital space. The maxillary barbel extends nearly to the 
origin of the second dorsal ; the mandibulary barbels are inserted 
close to the anterior margin of the mandible, the outer ones ex- 
tending to the root of the ventrals, the inner ones being somewhat 
shorter, and provided with two or three additional filaments. The 
entire neck is cuirassed, the cuirass being composed of three trans- 
verse pieces ; the lateral margins of the nuchal cuirass are nearly 
parallel. Humerus with a long, slender process, which extends 
