3. HENIOCHUS. 39 



do not extend to the vertical from the vent. The scales are of mo- 

 derate size, ctenoid ; one of the largest covers one-fifth of the eye. 



The colour is now unifonn reddish-brown, with shining longitu- 

 dinal streaks, following the series of the scales. The spinous dorsal 

 and its base are blackish. A dark ocular band, much narrower than 

 the orbit, descends from the origin of the dorsal to the eye, and is not 

 continued on the cheek. The soft dorsal has a light posterior margin. 

 The other fins are yellowish or colourless. 



inches, lines. 



Total length 3 4 



Height of the body 1 8 



Length of the head 1 1 



Distance between the anterior margin of the 



eye and the extremity of the snout .... 65 



Diameter of the eye 3^ 



Length of the fourth dorsal spine 9 



of the second anal spine 8| 



3. HENIOCHUS*. 



Heniochus, Cuv. <§• Val. \\\. p. 92. 

 Taurichthys, Cuv. 8f Val. vii. p. 146. 



Body much compressed and elevated. One dorsal, Avith eleven to 

 thirteen spines, the foiu'th of which is more or less elongate and 

 fihform. Muzzle rather short or of moderate length. JN'o teeth on 

 the palate ; praeoperculimi without spine. Scales of moderate size. 

 Air-bladder present ; five branchiostegals ; pyloric appendages in 

 smaU number. 



From the Mauritius through aU the East Indian Seas to Polynesia 

 and the N.W. coast of Australia. 



1. Heniochus macrolepidotus. 



Renard, i. 3. 13. 31. 168, ii. 14. 66: Buysch, i. no. 3; Valent. iii. figs. 18. 



201. 324. 372. 509; Seba, iii. 25. 8. 

 Chffitodon macrolepidotus, Artedi, Species, p. 94 ; L. Si/st. i. p. 464 ; 



L. Gm. p. 1247 ; Bl. tab. 200. f. 1 ; Lacep. iv. p. 455. pi. 11. f. 3 and 



pi. 12. f. 1 ; Bl. Schn. p. 231. 



acmniuatu.s, Z. 3Iiis. Ad. Fried, tab. 33. f. 3. 



bifasciatu.s, Shaw, Zool. iv. p. 342 ; Gronov. Si/st. ed. Gray, p. 75. 



Heniochus acuminatus, Cut: Sf Val. vii. p. 98. 



pennutatus, (Bennett) Cuv. Sf Val. vii. p. 99. 



macrolepidotus, Cuv. ^ Val. vii. p. 93 ; Faun. Japon. Poiss. p. 82. 



pi. 44. f. 1 (young) ; Richards. Ichth. Chin. p. 246 ; Bleeker, Verh. 



Bat. Gen. xxiii. Chatod. p. 21. 

 Diphreutes macrolepidotus, Cant. Catal. p. 159. 



D- B- A. ^- L- lat. 48. L. transv. 10/22. Csec. pylor. 6. 



Vert. 10/14. 

 The fourth dorsal spine exceedingly elongate, filiform. A small 



* 1. Ruysch. tab. 20. f. 5; Renard. ii. 10. 49; Valent. no. 161.— Tauriobth^-s 

 viridis, Cuv. cf Val. vii. p. 151. — East Indies. 



