APPENDIX C. 
235 
pectoral fin; mandibulary teeth rather numerous^ much shorter 
than the eye, in a narrow hand. Maxillary barbels longer than the 
head, lined with a narrow membrane interiorly. Dorsal spine longer 
than the head (in adult specimens), serrated along both edges. 
Humeral process longer than high, pointed behind. Dorsal and 
pectoral spines and the upper caudal lobe produced into filaments. 
Uniformly coloured; young dotted with brown. 
i 
Synodontis schal, Bl. Schn. 
D. 1/7. A. 12—13. P. 1/8. V. 7. 
The gill- opening extends downwards to before the root of the pec- 
toral fin ; mandibulary teeth rather numerous, much shorter than 
the eye, in a narrow band. Maxillary barbels longer than the head, 
not fringed. Pectoral spine stronger and rather longer than that 
of the dorsal fin, the latter being not serrated in front, and not much 
longer than the head. Humeral process much longer than high, 
pointed behind. The distance between dorsal and adipose fins is 
much less than the length of the base of the former. Old and 
half-grown specimens of uniform coloration, young ones irregularly 
spotted and banded with brown. 
The largest specimen I have seen had a weight of about ten 
pounds ; but this fish probably attains to a much larger size. 
Synodontis humeratus, Cuv. & Val. 
Maxillary barbels not fringed. Dorsal spine serrated in front. 
