OLOBB-FISHES. 



93 



extract the soft parts. In the sea round Ceylon they have been 

 found to destroy an immense number of Pearl-OysterSj thus doing 

 a great deal of injury to the fisheries. Shells pic^rced by Pile-fish 

 are exhibited in Case 27. The CoiFer-fishes (Ostracion) Lave the 



Fij?. 81. 



Coffei^fiah \Odracion qmtdricomis). (From the West ladies.) 



integuments of the body formed into a hard continuous carapace, [Case 26.] 

 consisting of hexagonal scutes juxtaposed in mosaic fashion ; only 

 the snout, the bases of the finsj and the hind part of the tail 

 are covered with soft skin. 



Fig. 82. 



Fig. 83. 



Fig. 82. Globe-Ash (Diodon maoulattis) . (From the Indian Oceau.) 

 Fig. 83. The same, inflated. 



