BY W. MACLEAY, F.L.S. 623 



Family XY. TEICHIUEID^. 



Characters of Division. 



Genus Lepidopus, Gouan. 



Body very elongate, band-like ; cleft of mouth, wide. One 

 single dorsal fin along the whole back ; caudal well developed ; 

 ventrals reduced to a pair of scales ; anal spines numerous, but 

 minute, or hidden beneath the skin. Scales none ; several strong 

 teeth in the jaws, teeth on the palatine bones ; no keel on the 

 tail. Eight branchiostegals. Air-bladder present ; pyloric 

 appendages in increased number. 



All seas. 



333. Lepidopus caudatus, AVhite. 



Gunth. Oat. Fishes II., p. 341.— AUp. Proc. Eoy. Soc.Tas., 1875, 



p. 86. 



" The Seahhard Fish " of English Fishermen. 

 D. 102-104. A. 24-25. Otec. pylor. 23. Vert. 41/71. 



The height of the body is fifteen times and a-haK in the total 

 length, caudal fin deeply forked. Anal spines in great number ; 

 minute if visible. Uniform silvery. 



Tasmania. 



Genus Trichiurus, L. 



Body very elongate, band-like ; tail tapering to a point ; cleft 

 of the mouth wide. One single dorsal fin along the whole back, 

 caudal fin none ; ventrals reduced to a pair of scales or entirely 

 absent ; anal spines numerous, but minute or hidden beneath the 

 skin. Scales none. Strong teeth in the jaws, teeth on the 

 palatine bones, none on the vomer. Seven branchiostegals. Air- 

 bladder present ; pyloric appendages in increased number. 



Warm Seas of both hemispheres. 

 3 



