BY W. MACLEAY, F.L.S. 55 



Division XVI. TJ3NIIFOEMES. 

 Anal fin absent ; caudal rudimentary, or not in the longitudinal 

 axis of the fish. Skeleton soft. 



Family XXXVII- TEACHYPTEBID.E. 



Body elongate, strongly compressed, naked ; eye lateral ; mouth 

 small, dentition feeble. One dorsal fin occupying the whole back 

 with a detached anterior portion, composed of flexible rays. 

 Ventrals thoracic ; gill-opening wide, pyloric appendages in very 

 great number. Vertebrse numerous. 



Genus Eegalecus, Briinn. 



Each ventral fin reduced to a long filament, dilated at the 

 extremity ; caudal fin rudimentary or absent. 



Europe, Africa, India. 



651. Eegalecus gladius, Cuv. & Val. 

 Gunth., Cat. Fishes III., p. 308. 



B. G. D. 312. A. 0. C 0. P. 14. V. 1. 



The length of the head equals the height of the body, which 

 is contained five times and two-thirds in the distance of the vent 

 from the snout; the snout is truncated, the cleft of the mouth 

 vertical, and the upper jaw very protractile ; a series of minute 

 teeth in each of the jaws ; the single ventral ray very long, 

 terminating in a broad lobe, and another cutaneous flap on the 

 second third of its length ; the anterior twelve dorsal rays are 

 produced, the first five forming a separate division over the eye ; 

 skin covered with small tubercles. Colour light grey, purplish 

 on the back ; dorsal fin margined with rod ; head bluish-grey. 



Said to have been seen on the Tasmanian Coast. 



652. Eegalecus jacksonexsis, Eamsay. 

 Proc. Linn. Soc. N.S. Wales, Vol. V., p. 631 pi. 20. 



Port Jackson. 



