ZOOLOGY. 235 



rays; the pectoral 13, the ventral 7, and the anal 3 spines and 7 rays; 

 the whole fish is silvery, tinged with brown and red, like a carp, except 

 on the belly, where it is orange ; the fins and lips are red. It inhabits 

 the River Gambia. 



Coryphaena Novacula, Lin. 

 Found at Bona Vista and St. Jago. 



Chromis Triacantha, new species, Boicd., fig. 52. 



So named from the three spines of its ventral fin; the dorsal fin has 15 

 spines, and 1 1 rays ; the ventral has 9 rays, besides its 3 spines ; the 

 whole fish is of a silvery gray, except the fins, which are orange. Found 

 in the Gambia. 



Sparus Sargus, L«h. Bona Vista. 



Sparus Chromis, Un. Bona Vista. 



Dentex Unispinosus, new species, Bowd., fig. 42. 



So called from the single free spine in front of the dorsal fin, which has 

 besides 21 rays ; the pectoral has 12, the ventral 6, the bases of which 

 are covered with a large scale ; the anal has 4 spines and 8 rays, and 

 the caudal 20 rays ; bands of small scales pass across the head ; the 

 pre-operculum is radiated, and there are 7 small sharp teeth, wide apart 

 in front of each jaw, and on each side of the jaws is a row en velours ; 

 the whole fish is silvery, slightly tinged with red. Porta Praya. 



Dentex Diplodon, new species, Botvd., fig. 46. 



The teeth of this new species of Dentex are small and irregular, and set 

 in a double row, the inner row of which is the longest ; the dorsal fin 

 has 16 rays and 10 spines, the pectoral 15 rays, the ventral 5 rays and 1 

 spine, the anal 10 rays and 3 short spines, and the caudal has 15 rays ; 

 the whole body of the fish is of a dark silvery gray, with a yellow spot 

 just above the operculum ; the fins are yellow, tinged with red. Porta 

 Praya. 



2H2 



