343 



HORNED CHiETODON. 



Chaetodon Cornutus. C. albo-ccerulescens, corpore ekvato-orbi- 

 culari, antice fasciis duabus, postice unica nigris, radio tertio 

 pinnce dorsalis longissimo. 



Blueish-white Chaetodon, with high-orbicular body, crossed 

 on the fore-part by two, on the hind-part by one black 

 band, and the third ray of the dorsal fin extremely long. 



Chaetodon cornutus. Lin. Block, t. 200. f. 2. 



Shape of the body nearly orbicular, but deeper 

 than long, or measuring more from the back to 

 the abdomen than from head to tail : dorsal and 

 anal fins produced in a falciform manner, so as to 

 reach beyond the tail, more especially the dorsal 

 fin, several rays of which, from about the third to 

 the eighth, are gradually extended beyond the length 

 of the rest, though still preserving the outline of 

 the fin ; but the third or longest ray curves over 

 the tail to a great distance downwards : colour of 

 the body silvery ; with a blueish cast on the upper 

 parts, and marked by three broadish black zones, 

 two passing across the thorax, so as to represent a 

 double band, and the other passing across the hind 

 part of the body, dorsal, and anal fin : tail black, 

 arched by a narrow white crescent near the end : 

 scales on the body rather small : snout rather pro- 

 duced, but in a much less degree than in the C. 

 rostratus : over each eye is generally a small 

 pointed or horn-shaped process, which in the 

 younger specimens is scarce perceptible ; native of 

 the Indian seas : general length from four to six 

 inches. 



