1 1 42 Catalogue of Malayan Fishes. [Nov. 



Heniochus macrolepidotus, Temm. and Schl. F. J. Pise. 82, Tab. 



XLIV. Fig. 1. (Young.) 



Heniochus macrolepidotus, Richardson, Report 1845, 246. 



Young, Ground colour of the head and body milk-white ; on the 

 upper part of the muzzle, as far as the anterior opening of the nostrils, 

 a small black rectangular band ; between the eyes across the forehead, 

 a backwards pointing angular black band ; a broader, comprising the 

 three anterior and in some the root of the elongated fourth dorsal 

 spine, proceeds obliquely downwards over the side and posterior part 

 of the opercle, from whence it becomes broader, spreading in front 

 over the ventrals, behind over the spinous part of the anal, edging the 

 soft part ; a posterior black band, partially covering the 5th, 6th, 7th 

 and 8th dorsal spine, proceeds obliquely backwards over the side cover- 

 ing the posterior half of the soft anal. The fourth elongated, flexible, 

 dorsal spine and its membrane milk-white, minutely dotted with black ; 

 rest of the dorsal, the caudal and pectoral fins bright gamboge or 

 citrine. Tris gamboge, blackish towards the orbit, divided by an ob- 

 lique black band, appearing as a continuation of the angular one of 

 the forehead. 



D 11/25 or 26, C 17f, A 3/18 or 19, V 1/5, P 17, Br. V. 



Habit. — Sea of Pinang, Singapore, Malayan Peninsula. 



Manilla, Moluccas, New Guinea, Celebes, Ceylon, Pondi- 

 cherry, Isle of France, Mauritius, Mozambique, Japan. 



Total length : 6 inch. 



Solitary young individuals, not exceeding the length given, occur at 

 all seasons at Pinang. 



Gen. Ilarches,* Cantor. 

 (Equivalent to Ephippus, Cuvier.) 



Body oval or nearly orbicular ; dorsal fins two, or one deeply emar- 

 ginated between the spinous and soft portion ; the former not covered 

 with scales, capable of reclining in a groove, formed by the skin of the 

 back ; anal spines three ; pectorals oval. 



Ilarches orbis, (Bloch). 



Chsetodon orbis, Bloch, Tab. 202, Fig. 2. 



Chsetodon orbis, Linne, Syst. 1244. 



* l\dpxns, commander of a troop. Substituted for Ephippus, Cuvier 1829, 

 pre-occupied by Ephippium, Latreille 1802 (Diptera.) 



