52 first Annual Report 
or intermediate. The alimentary canal is ordinarily as shown in 
Figure 16, being about three-fifths the length of the fish, but in some 
specimens it is much longer. It lies mainly in the right side of the 
abdominal cavity, never in the left. The stomach is only slightly 
differentiated from the remainder of the canal, and has no pyloric 
ceca. 
The food of Gibbonsia elegans is both vegetable and animal, with 
perhaps a predominance of the latter. Many of the specimens con- 
tained small molluses (especially limpets), crustaceans (crabs, am- 
phipods, ete.), and minute worms, while a few contained large 
amounts of foliose red alge, which are common in the pools. 
Viscera: Gibbonsia evides—In the larger species, G. evides, the 
viscera is little different from that of G. elegans, except that the ali- 
mentary canal is normally longer, being about nine-tenths the length 
of the fish. Figures 18 and 19 indicate the principal features of im- 
portance. The stomach in Figure 19 is shown distended with food, 
which makes it appear quite different from that of G. elegans, a 
difference which is only apparent, however. The alimentary canal 
is very thin walled, and easily distended in both species. 
The food habits of this species are apparently not appreciably 
different from those of G. elegans. In the specimens examined about 
the same range of food materials was found, i. e. small molluses, 
crustaceans, worms and bits of alge. 
Neoclinus satiricus Girard 
(Figures 20 and 21) 
One specimen, nine inches long, taken alive in a baited trap off 
Newport Beach. It was very pugnacious while alive in the rowboat, 
and would snap viciously at anything put near it. It would turn 
round and round in the water, always keeping its eye on any object 
moving close to it. The writer, while observing the fish, incautiously 
got his fingers a little too near the fish’s head, with the result that 
they were savagely snapped and the fish was thrown several feet 
away on the beach by the backward jerk of his hand. The specimen 
is slate blue all over, without any bars or spots. 
The accompanying notes and figures were taken from this speci- 
men: Abdominal cavity placed far forward, extending in front of 
ventrals to between pectorals; very short; vent at posterior end. 
Liver very large, broad. Alimentary canal of large bore, short, (one- 
half length of fish), thick walled and muscular; stomach well differ- 
entiated from remainder; rectal portion thickened and tough, like a 
gizzard. No pyloric ceca. Figures XX and XXI show the gross 
characters of the viscera in their natural positions, and of the ali- 
mentary canal separated from the rest. From the latter figure the 
