316 



Records df thk S.A. Museum 



crest with serrated edges ; toj) of spine witli two sharp spikes and a long bi- or tri- 

 lobed appendage : a pair of slender spines in front of the lower half of each 

 pectoral base: body compressed, two and one-third to two and two-third times 

 deeper than wi<le: dorsal profile of body arched: ventral profile with three deep 

 indentations: \riu situated in the last. As described by (iunther the many s|)ines 

 differ in character and there are three sorts: (a) strong and much compressed. 



the base being in some instances equal to the height : such spines terminate in a 

 pair of sharp points and bear long bi- or tri-lobed foliaceous appendages : they 

 are situated as follows : one pair on the arcli of the dorsal profile ; another pair on 

 each of the abdominal dilations : three to five pairs on the upper edges of the tail, 

 the first pair at the posterior fourth of the dorsal fin: two to three single spines 



