53 



Genus POLYPTERUS, Shaw. 



367. The Bichir (Polypterus Niloticus, Shaw; Polypterus Bichir, GeoiFr.). 



fig. Geoffrey, Ann. du Mus. d'Hist. Nat. i. p. 57. pi. 5. Shaw, Gen. 



Zool. vol. v. part 1. p. 122. 

 Hab. The depths of the Nile. Presented by Sir W. C. Domville, Bart. 



\' 



Family Sturionidee. 

 Genus PLANIROSTRA, Cuv. 



368. The Paddle-fish (Planirostra spatula, Cuv. ; Spatularia reticulata, 



Shaw). 



Fig. Shaw's Gen. Zool. vol. v. part 2. p. 362. 

 Hab. Indian Seas. 



369. The Common Sturgeon (Acipenser Sturio, Linn.). 



Fig. Yarrell, Hist, of Brit. Fishes, fig. at p. 360. 

 Hab. The seas of Europe. 



Order IX. HOLOCEPHALI. 



Endoskeleton cartilaginous ; exoskeleton as placoid granules ; most of the tins 

 with a strong spine for the first ray; ventrals abdominal ; gills laminated, 

 attached by their margins ; a single external gill-aperture ; no swim- 

 bladder ; intestine with spiral valve. 



Family ChimeeridaB. 

 Genus CHIMERA, Linn. 



370 The Northern Chimsera or King of the Herrings (Chimcera mon- 



strosa, Linn. ; Chimcera borealis, Bloch). 

 Fig. Yarrell's Hist, of Brit. Fishes, vol. ii. fig. at p. 364. Shaw's Gen. 



Zool. vol. v. part 2. p. 365. 

 Hab. The Northern Ocean. Presented by J. B. Pentland, Esq. 



371. The Northern Chimsera (Chimara monstrosa, Linn.). 



Hab. The Northern Ocean. Presented by W. T. Domville, Esq. 



