NARRATIVE OE THE CRUISE. 
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represented in fig. 219, and consists of a light framework made of split bamboo, with 
two long straight strips about 8 feet in length forming its front, and meeting at a 
wide angle to form a point, which is dragged first in using the machine. The long 
straight strips have fish-hooks bound to them at intervals all along their length, the 
points of the hooks being directed towards the angle of the machine. The whole is very 
ingeniously strengthened by well-planned cross pieces, and is weighted with stones. It 
is dragged on the bottom by means of a light Manila hemp cord not more than one- 
eighth of an inch in diameter, which is attached to the angle. A stone attached to a 
stick is fastened just in front of the angle to keep the point down on the bottom. 
Fig. 219. — Dredge used by the Native Fishermen at Zebu for obtaining Euplectella. 
The hooks creeping over the bottom and sweeping an area nearly 14 feet wide, catch in 
the upright sponges and drag their bases out from the mud. 
In addition to the Euplectella, a good many other siliceous Sponges were obtained 
both by the native dredge and the ship’s dredges and trawls, as well as Echini, Star- 
fishes, Annelids, Pentacrinus, Pennatulids, and many other invertebrates. Four parasitic 
animals were found living on or in the Euplectella : an Isopod (JEga spongiophila), an 
Aphroditacean Annelid an inch in length, a small Pecten, and a Palamion. Dr. von 
Willemoes Suhm succeeded in hatching the eggs of the last and keeping the young, 
which was an ordinary zooea, in water for some time. 
The steam pinnace made several visits to the Euplectella ground along with the 
