49 



DESCRIPTION OF A SPECIES OF SEA BEEAM 

 (GIBELLA TBICUSPIDATA), FEOM SOUTHPOET, 

 TASMANIA. 



By E. M. Johnston, F.L.S. 



[Bead 15th Nov., 1&81.) 



D if, A j\, L. lat. 54-56, L. tr. H- The length of head 

 is one fifth of the total length. Dorsal fin of moderate 

 height, the spinous portion lower than the soft. The 

 incisors three-pointed, moderately broad, imbricate, in several 

 series in the upper and lower jaws. Colour uniform blackish- 

 brown, with lighter tinge of olive towards belly and lower 

 portion of head. 



Total length 15f inches. 



Body 13i „ 



Greatest dej^th 5^ „ 



Depth of caudal peduncle ... 1|- ,, 



