ANACANTHINI. 367 



This fish was obtained in Northumberland Sound. It feeds 

 on small crustaceans, fragments of many being found in its 

 stomach. 



Alimentary Canal. Coats of the part which descends from 

 the pharynx for about an inch and a quarter thick and strong, 

 the lining membrane being disposed in acute longitudinal folds 

 studded with coarse villi. The rest of the stomach is of greater 

 diameter, bends on one side on the descending branch and 

 bulges largely on the other, producing an obtuse sac. The 

 pylorus is much contracted, and is surrounded interiorly by a 

 narrow fold, acting as a valve against the regurgitation of the 

 contents of the intestine. Immediately beneath it are the 

 orifices of two small, wide and short, almost globular, caeca, 

 one on each side. The coats of the remainder of the intestine 

 are delicate, with a villous interior membrane. This portion 

 of the canal makes two doublings. Posterior to its anal ex- 

 tremity is the urinary bladder, which has strong coats, and is 

 about three-quarters of an inch long. Adjoining to it is the 

 ovary, containing many ova. 



The specimens were procured in Northumberland Sound, 

 as were all the others of Sir Edward Belcher's collection. 



GYMNELTS VIRIDIS (Reinhardt). 



Ordo Anacanihini, Miiller. 



Ophidium viride, Fabricius, Fauna Greenland., p. 141, No. 99; Ross 

 (Sir Jas.), Suppl. Parry's Third Voyage, p. 110. 



Gymnelis viridis, Reinhardt, Ichth. Bidrag til den Grdnland. Fauna, 

 Kjobenhavn, 1837, No. 53, p. 49. Idem, Beretningen an det 

 Kongl. Videnskabernes Selskabs Forhandlinger, 1830 og 1833. 



Radii: Br. 6-6 ; D. A. C. unite 164 ; P. 13. 

 PLATE XXIX., nat. size. 



In the f Regne Animal/ Cuvier informs us that he was 

 unacquainted with the Ophidium viride of Fabricius, but that 

 he believed it to be allied to the eels. The erroneousness of 

 this opinion was pointed out by Professor Reinhardt, who had 



