220 FAUNA OF NEW ZEALAND. 



more slender and scarcely bordered lower jaw, the lateral cusps 

 of the teeth are very minute ; and in a nearly similar species from 

 the China seas the teeth are more thinly set, and the lateral 

 cusps are so indistinctly seen through a common lens, that the 

 teeth appear simply subulate. The tongue is fixed nearly to the 

 top, and is fleshy, with a concave smooth disk and slightly raised 

 membranous margin. 



Rays: Br.; D. 16; A. 18; C. 16; P. 12; V. 7. 



The pectoral is acute, the rays lengthening gradually from the 

 lowest to the uppermost, which is simple but articulated. The 

 others are forked at the tops. The articulations in the first rays 

 of the dorsal and anal are obscure. The fork of the caudal 

 scarcely extends to half its depth; the lower lobe, as usual in the 

 genus, is the largest. The ventrals, small and approximate, are 

 placed behind the middle of the total length of the fish. 



DIMENSIONS. 



VanDiemen's VanDiemen's 



Land Spec. New Zealand Land Spec. 



No. 1. Spec. No. 2. 



Length from point of lower jaw to i n . Lin. in. Lin. in. Lin. 



tip of caudal . . . 10 9 11 12 2 



Projection of lower jaw beyond 



upper one . . . .111 18 20 

 Length from point of upper jaw to 



tip of caudal . . .89 93 10 2 

 Do. do. to base of caudal .76 7 8J 86 

 Do. do. to anus . .58 511 66 

 Do. do. to ventrals . . 4 7J 48 5 3j 

 Do. do. to pectoral . . 1 71 1 Sh I 9J 

 Do. do. to edge of gill-cover 16 17 18 

 Length of lower lobe of caudal .12 12 15 

 Do. of pectorals . . .10 10 13 

 Do. of ventrals . . . 5j 6 6j 

 Do. of dorsal, or anal . .12 12 15 

 Do. of trunk of tail between ver- 

 tical fins . . . .06 06 06 

 Height at the nape . . . 8J 9 9 

 Do. ofbody . . .08 8^ 9J 

 Thickness of body . . .06 6J 08 

 Diameter of circular orbit . .04 04 4f 

 Length of upper jaw . .04 04 4 



