306 



Records of the S.A. Museum 



rings: lower half of trunk with brown, diamond-shaped outlines, alternating with 

 the rings above. 



Hab. South Australia. 



LISSOCAMPUS gen. nov. 



Body smooth, without ridges, the angles scarcely defined : dorsal hn >hort : 

 pectorals (jresent. Tail long, with lin. Allied to Namiocaiiipiis (jinitli. 



LISSOCAMPUS CAUDALIS sp. nov. 

 Fig. 46. 



D.ll: P. 5?: CIO: Annuli 12 + 60: sub-dorsal annuli 1+i. 



Snout 3-1 in the head: eye 2-0 in the snout and 6-2 in the head: head 2-5 

 in the trunk and 15-5 m the total length. Trunk 4-8 in the tail which is 1-3 

 in the total. 



Head and body smooth : snout compressed, with an obtuse, elevated crest, 

 which terminates on the interorbital space: a ridge on each side from the tip of 

 the snout to the first nostril: occipital and nuchal ridges feeble. Body one-third 

 deeper than wide, without ridges and the angles rounded: back convex and the 

 ventral surface \'-shaped but without keel. Tail almost round and very long, 

 almost four-fifths of the total length. The dorsal fin commences on the posterior 

 edge of the last body ring; it is very short and is situated on an elevation; the 



Fig 16. [.issoctiiiipiis Lai(il<ilis 



