76 IOWA STUDIES IN NATURAL HISTORY 
described. It is hard to account for the very conspicuous color- 
ation, as it can hardly be protective unless it is a case of ‘‘warn- 
ing coloration.’’ But the Fijians, at least, consider it good to eat. 
The apodous group of holothurians is represented by a fine spe- 
cies, probably Huapta, very much like the one described in my 
narrative of the Barbados-Antigua Expedition. When fully ex- 
tended it is about two feet long, irregularly mottled brown, red- 
dish brown and yellowish, sometimes giving an effect of obscure 
annulation. The tentacles are fifteen in number and rather pro- 
fusely branched. The anchor and anchor plates are much larger 
than in Euapta lappa, often three times as long. The anchor flukes 
are quite efficient and give a distinctly prickly feeling to the in- 
tegument, their points breaking off in one’s fingers. These spicules 
are the largest of any I have seen and differ from those of EZ. 
lappa not only in size but in the fact that the anchors are per- 
fectly smooth, and devoid of nodules on the outer faces of the 
flukes. They are found in all the Synaptide figured by Hjalmar 
Theil in the Challenger Report on the Holothuroidea. The end 
of the shank is shaped much like the flukes of a whale and is ter- 
minated by fine rows of nodules. The anchor plates, larger and 
more complicated than those of EF. lappa, are about as long as the 
shank of the anchor, and with many more perforations, none of 
which have the fine denticles like the cogs in a watch wheel. They 
are shaped much like those figured by Theil for Synapta beselii 
and it may be that our specimens belong to that species which is 
represented from various islands of the South Pacific, such as 
Tahiti and the Philippines. As Fiji lies roughly between these 
two localities it is not unlikely to be found there. This group 
belongs to a suborder in which the respiratory tree is entirely 
absent. 
The order Pedata has numerous representatives on the Fiji 
reefs, but lack of space prevents any detailed description. I will, 
therefore, content myself with giving a few of the color notes from 
my field notebook. One species was yellowish white with two rows 
of conspicuous chocolate spots; another was very slender, olive 
green in color and covered with white spinelike processes; another, 
a small mottled one, with chocolate and white blotches. 
The, Echini were numerous individually but not many species 
were represented. As indicated before, Echinometra outnumbered 
all other forms combined. Its color variations interested us great- 
ly and ranged from almost pure white through various changes of 
