HOLACANTHUS. 
37 
HENIOCHUS, Cm. & Val. 
112. Heniochus macrolepidotus. C 8 -] 
Seba, iii. 25. 8. 
Chaetodon macrolepidotus, Artedi, Species, p. 94; Linn. Syst. Nat. i. p. 464. 
Heniochus macrolepidotus, Cuv. fy Val. vii. p. 93 ; Schleg. Faun. Japon. Poiss. p. 82, pi. 44. f. 1 
(young) ; Giinth. Fish. ii. p. 39. 
Diphreutes macrolepidotus, Cant. Mai. Fish. p. 159. 
Aden. Zanzibar. Seychelles. Through all the Indian seas to Australia. 
HOLACANTHUS, Lacep. 
113. Holacanthus asfur. [1-] 
Chaetodon asfur, Forsk. p. 61. 
Holacanthus asfur, Riipp. Atlas, Fische, p. 132, t. 34. f. 2 ; Cuv. fy Val. vii. p. 174 ; Giinth. Fish. ii. p. 45. 
Zanzibar. Aden. Bed Sea. 
114. Holacanthus diacanthus. C 243 -] 
Chaetodon diacanthus, Boddaert, Epist. ad Gaub. de Chat. diac. 1772. 
fasciatus, Bloch, t. 195. 
Holacanthus dux, Lacep. iv. p. 534; Cuv. Val. vii. p. 184; Riipp. N. W. Fische, p. 37. 
diacanthus, Giinth. Fish. ii. p. 48. 
Zanzibar. Indian Ocean and Archipelago. 
115. Holacanthus multispinis, sp. n. Plate VI. fig. 4. [491.] 
D. A. L. lat. 47. 
Prseopercular spine flat, smooth, reaching to base of pectorals ; a smaller spine in 
front of it. The most remarkable characteristic of this fish is that there are from two 
to four spines on the interoperculum, of which the posterior is longest, and longer 
than the additional spine of the prgeoperculum. Suborbital strongly denticulated. 
Soft dorsal and anal subrhomboidal, not elevated. Anal spines very long ; the first is 
equal to the fourth of the dorsal ; the third is equal to the last ; the second is interme- 
diate between them. The height of the body below the origin of the dorsal is one-third 
of the total length ; the length of the head to the angle of operculum is contained four 
times and two-thirds in the same. The snout is very obtuse. 
Colour in spirits and dried examples uniform dark silky brown or black. In life deep 
brown, darker anteriorly, with numerous black wavy bands, some of which are interrupted. 
A blue longitudinal band parallel to anal. On the shoulder there is a black blotch 
