100 Transactions. — Zoology. 



of gill-opening. Distance between eyes twice and a half in 

 length of head. Diameter of orbit six times in length of 

 head. 



The jaws are feeble, mouth being capable of very little 

 protrusion, dorsal terminates the longitudinal diameter of 

 pupil of eye posterior to the vertical from termination of aiial 

 fin. Vertical of origin of anal a trifle in advance of the last 

 spinous ray of dorsal. Ventrals commence in vertical with 

 fourth spinous ray of dorsal. 



The whole body is plump and robust, though the sides 

 towards the tail-end are somewhat flattened, and the fish is a 

 very full-blooded one. 



Gill-rakers very fine and numerous. Gill-arches 4, with 

 three long openings between first, second, and third, the 

 opening behind the fourth being short, equalling in length 

 diameter of orbit only. 



The tricuspid teeth in the two rows in front of jaws are 

 not recuperated from the row behind the groove. When de- 

 stroyed they are renovated by new ones, which grow up from 

 their bases again. The profile length of upper mandible 

 about equals diameter of orbit. 



The stomach is large and siphon-shaped ; pyloric append- 

 ages very numerous, but none bi- or tri-fid. Peritoneum and 

 lining of throat and mouth of a dense-black colour. Stomach 

 filled with chewed remains of Zostera or some similar soft 

 weed, and the intestines full of same digested. It may be 

 remarked that the stomach and bowels of these fish are 

 always excessively gorged with food and food remnants. 



Colour : Cheeks and nose golden-green, also tail at base of 

 caudal fin. Top of head and back olive-brown ; sides greyish 

 silvery, with pinkish reflections. Throat and belly white. 

 Dorsal fin transparent brown, mottled on rays with darker, 

 in extension of side-bars. Tail brown, tipped with darker, 

 with rosy reflections. Pectorals transparent light-brown. 

 Ventrals brownish, shading to white at axillae. Anal clear 

 brown, mottled and tipped with darker. Eye, dark golden- 

 brown iris ; pupil black, surrounded with golden margin. 

 Lips light pinkish-brown. Eleven narrow rich dark-brown 

 bars descend from the back, the series always commencing 

 from beginning of dorsal and extending in a partially diagonal 

 direction down back and sides ; the tenth bar ends near 

 termination of dorsal ; the eleventh a proportionate distance 

 from last bar in rear of dorsal. They are not quite sym- 

 metrically defined on each side of the body, as they originate 

 from the alternate ray of dorsal from that which is the point 

 of origination on the reverse side. The width covered by each 

 bar roughly approximates to the vertical exposed breadth of a 

 scale. 



