220 SICILIAN SWORD FISH. Class IV. 



rious fins of the tunny ; the pectoral fins are 

 long, and of a scythe-like form, and their first 

 rays the longest j the anus is placed at the 

 distance of one-third part of the body from the 

 tail; beneath are two anal fins; the tail is 

 exactly of the shape of a crescent. 



