— = 
are 
8. Cryptopterus Bleeker. 
(BLEEKER, Ichth. Arch. Ind. Prodr. I. Siluri 1858, p, 283). 
(Kryptopterichthys Blkr., Micronema Blkr., Phalacronotus Blkr., 
Hlemistlurus Blkr. p. p.). 
Elongate, strongly compressed, snout depressed. Cleft of 
mouth more or less oblique, not surpassing the eye, which 
is covered by skin and the lower part of which is situated 
below the level of the cleft of the mouth. Anterior nostrils 
tubular, near the frontedge of the snout, posterior nostrils at 
some distance behind them but before the frontborder of the 
eye. Laterally from anterior nostril a maxillary barbel; a pair 
of mandibulary barbels far distant behind the symphysis, 
generally short, rudimentary or even wanting. Dorsal rudi- 
mentary or absent. No adipose fin. Long anal free from or 
united with caudal, which is deeply forked. Ventrals small or 
rudimentary with 5—10 rays. Pectorals with a partly osseous 
spine. Teeth depressible, those of the jaws in a more or less 
curved band; vomerine teeth in a single band, by exception 
in 2 separate patches. 8—17 branchiostegal rays. Gillrakers 
numerous (15—17), rather slender and long. Gillmembranes 
free from each other and from isthmus. 
3S 
= 
aah , aan StS 
Vestas PRA SSS SSS 
Fig. 87. Cryptopterus apogon (Blkr.). 
Syne psis ofthe species. 
I. Vomerine teeth in 2 SEWALATS spPacCheS mje rar sae) «Gey C. schilbeides p. 216. 
II. Vomerine teeth in one band. 
A. Dorsal rudimentary. 
1, Mandibulary barbel shorter than head. Anal 
52—70. 
@. Pectorals equal to head. Anal 52 ..... C. macrocephalus p. 216. 
6, Pectorals much longer than head. A. 53-70. 
a. Maxillary barbel extends to ventrals or 
anal, 8—g radii branchiostegi...... G Greer his, ps 217. 
f. Maxillary barbel reaching to or surpas- 
