EIGHT-EANDED CRflSTOBON. 



Chaetodon Octofasciatus. C. subargenteus, corpore rotundato- 



ovato,fasciis octo angustis transversis nigris. 

 Silvery-grey Chaetodon, with round-ovate body crossed by 



eight narrowish black bands. 

 Chaetodon octofasciatus. Lin. Gmel. p. 1262. Block, t, 215. 



Size rather small : shape, round-ovate : colour 

 whitish or silvery-grey, brownish on the back : 

 body marked by eight rather narrow, blackish or 

 deep-brown, transverse bands disposed in pairs* 

 viz. one pair across the head and gills, the first 

 line passing through the eye : two pair across the 

 middle of the body, and the remaining pair across 

 the end of the body and tail : lateral line curving in 

 the direction of the back, and formed by a row of 

 round scales : dorsal fin almost completely scaled, 

 and furnished at the fore-part with extremely strong 

 spines ; rounded at the hind-part and slightly 

 stretched towards the tail, but not reaching farther 

 than the middle of that part : anal fin of similar 

 shape ; and furnished with three very strong short 

 spines at its origin. Native of the Indian seas. 

 This species, was arranged by Linnaeus, in the 

 twelfth edition of the Systema Naturae, in the genus 

 Perca, under the name of Perca nobilis. 



