436 
APPENDIX. 
[B. 
Pectoral fin, fifteen rays, first very short; Ventral fin, 
five rays ; one very strong, short. Dorsal fin, thirty-one ; 
anterior very strong, first short. Anal fin, twenty-three; 
two first very strong and short. Caudal fin, sixteen rays, 
divided. 
Body 3 ; tail 1-|- inches long. Body high ; dorsal fin 
J; pectoral fin inches long. 
This fish belongs to the Genus Acanthurus of Bloch, 
adopted by Shaw (Harpurus, of Forster), but as that genus 
is apparently formed from the type of Linnaeus’s Genus, 
Teuthisy I have adopted the latter name for those Chetodons 
which have one spine on each side of the tail, and AcaJi- 
thurus for those that have two. They are usually called 
Lancet-fish, from the curious structure of the sub-caudal 
spines. 
Captain King has presented to the Museum seven or 
eight other sorts of fish, in spirits, and several interesting 
drawings, which I have not hitherto been enabled to find in 
any of the works on Ichthyology, but so little is known of 
the genera and species of this department of Natural His- 
tory, that I am not inclined to describe them as new, for fear 
of increasing the confusion at present existing. 
Among the unnamed fish, there is one exactly similar 
to a species found by my late friend Mr. Cranch, in the 
South Atlantic. 
6. Squalus 0CELLATU3. Gmelirit Syst, Nat. 1494. 
Squalus oculatus. Banks and Bolander^ MSS, . 
6. Squalus glaucus. 
Captain King observes, this fish is frequently found in the 
neighbourhood of the coast. 
