Series Plectognathi 627 
olds. In this group, the body is enveloped in a bony box, 
made of six-sided scutes connected by sutures, leaving only 
Fig. 518—Horned Trunkfish, Cowfish, or Cuckold, Lactophrys tricornis (Linnzus). 
Charleston, 8S. C. 
the jaws, fins and tail free. The spinous dorsal fin is wholly 
wanting. There are no ventral fins, and the outer fins are 
Fic. 519.—Horned Trunkfish, Ostracion cornutum (Linneus). East Indies. 
(After Bleeker.) 
short and small. The trunkfishes live in shallow water in 
the tropical seas. They are slow of motion, though often 
brightly colored. 
Fie. 520—Spotted Trunkfish, Lactophrys bicaudalis (Linnwus). Cozumel Island, 
Yucatan. 
Against most of their enemies they are protected by the 
bony case. The species range from four inches to a foot in 
