334 
3'/,—3°/,, more than 1'/, times broader than long, its posterior 
part convex, its dorsal profile sloping down in a straight line to 
the rounded, flattened snout, the breadth of which is equal to that 
of the head. The width of the mouth nearly 11/, times in head. 
Fig. 144. Dotichthys novae-guineae M. Web. X 4/5. 
Headshields with retiform rugae; the 
borders of the keeled occipital process 
are slightly convex, otherwise nearly 
parallel. The length of the process is 
twice the breadth at its base, its blunt 
hindborder is emarginated and nearly 
touches the anterior process of the narrow basal bone of the 
dorsal spine. Median fontanel elongate, wider behind. Humeral 
process very broad and short. Eye situated in the middle of 
the head, more than 1 eyediameter behind corner of mouth, 
g'/, in head and about 6 times in the convexity of the inter- 
orbital space. All the barbels extending to the anterior part 
of the anal. Height of dorsal equal to length of head from 
posterior nostril, the rather weak spine about as long as head 
without snout, posteriorly serrated, anteriorly only a few teeth 
near its top. Base of adipose fin shorter than dorsal, its 
distance from dorsal at least thrice its length. Anal nearly 
equal to head, its height more than head without snout. 
Ventrals reaching to anal, shorter than postorbital part of head. 
Pectorals longer than head without snout; their spine flattened 
and posteriorly strongly serrated is shorter and considerably 
shorter than dorsal spine. Caudal deeply forked, with pointed 
lobes; about thrice as long as median rays. Least height of 
caudal peduncle more than twice in its length. About 32 slender, 
cylindrical gillrakers, much longer than branchial filaments, 
