232 
looking upward. Posterior nostril just behind nasal barbel. A 
maxillary barbel near the end of the upperlip, a mandibu- 
lary one near the corner of the mouth and two mental ones 
between the mandibulary barbels. Lateral fold at the corner of 
the mouth may be produced in a short barbel. Eye covered 
by skin. Origin of first dorsal above or behind origin of pec- 
torals, both with a spine, serrated at both borders. Origin of 
second dorsal before or above origin of ventrals. It is many- 
rayed as the anal, both are confluent with the caudal. Ventrals 
with 10—12 rays. Pectorals with a denticulated spine. Teeth 
in the upperjaw more or less conical, on the vomer molarlike, 
in the lower jaw mixed. Lateral line more or less conspicuous. 
An axillary porus. The second and third branchial arches 
with a series of long cartilaginous processes, covering the base 
of the gill laminae, on the sides facing each other. The gill- 
membranes are united to the broad isthmus along their median 
line. A conspicuous dendretic organ between anus and anal. 
I. Cnidoglanis nudiceps Gthr. 
Cnidoglanis nudiceps Giinther, Challenger Reports, Zool. VIII. Shore Fishes, 
1883, p. 49. 
ee 
tag 
V7, 
ttle OZ LAL 
Fig. 92. Cridoglanis nudiceps Gthr. (After the type in the British Museum). 
Height about 11, head about 7, depressed, small, its length 
being equal to its distance from the vent. Its occipital region 
osseous, not covered with loose skin. Eye 51/,, shorter than 
snout, nearly 3 times in postorbital part of head. Lower lip 
not pendent nor fringed, lateral fold at the corner of the mouth 
not produced in a barbel. The nasal and maxillary barbels 
do not extend to the end of the head. First dorsal lower 
than the body and placed at a very short distance from the 
occiput, its spine serrated in front and behind, as long and 
strong as that of the pectoral fin. Maxillary teeth conical, in 
two small, subtriangular patches; vomerine teeth more obtuse, 
in two series, which form a subcrescentic band. Mandibulary 
teeth in a band. Isthmus between the branchial membranes 
comparatively broad, broader than the interorbital space. 
