339 



ORB CILSTODON. 



Chaetodon Orbis. C. corpore orbiculari, radlis anterioribus 



pimi( dorsalis elongatis. 

 Chretodon with orbicular body, and the first rays of the dorsal 



fin elongated. 

 Chaetodon Orbis. Block, t. 202. /. 2. 



A SMALL ; species : length about four inches : 

 shape of the body remarkably orbicular : colour 

 blueish-grey above, yellowish-white beneath : body 

 covered with large scales : ventral fins narrow and 

 falciform ; first rays of the dorsal running beyond 

 the membrane, as in some of the Dories : side-line 

 curving irregularly, with a kind of double descent 

 before it reaches the tail. Native of the Indian 

 seas. 



BUTTERFLY CHJETODON. 



Chaetodon Capistratus. C. corpore o'cato fulvo, lineis obliqms 

 oppositis notatOj postice macula nigra, capite fascia fusca. 



Chaetodon with ovate fulvous body, marked by oblique opposite 

 lines, a black spot on the hind-part, and head crossed by a 

 brown bar. 



Chaetodon capistratus. Lin. Block, t. 205. f. 2. 



A VERY small species, length about three inches 

 and a half : shape ovate : dorsal and anal fins 

 gradually dilated and rounded at their extremities : 

 ground-colour of the whole animal pale orange, 

 the body being covered with scales of moderate 

 size, and marked on each side the lateral line by 



