4. nOLACANTHUS. 45 



The scales are of moderate size, striated, not mixed with smaller 

 ones. 



The colour is now a uniform reddish-grey, darker on the back ; a 

 black band along the base of the soft dorsal is continued over the 

 back of the tail and the upper caudal lobe ; another begins at the 

 lower side of the tail, before the root of the caudal, and is continued 

 over the lower lobe. 



inches, lines. 



Total length G 3 



without caudal 4 6 



Height of the body 2 



Length of the head 1 1 



of the fifteenth dorsal spine 8 



B. Trunk with a whitish vertical blotch or band. 

 6. Holacanthus asfur. 



Chsetodon asfui-, Forsk. p. 61 ; BI. Sclm. p. 219. 

 Pomacantlius asfur, Lacep. iv. pp. 518, 521, 524. 

 Holacanthus asfur, R'upp. Atl. Fische, p. 132. taf. 34. f. 2 ; Cuv. 4* Val. 

 vii. p. 174. 



D. i?. A. l^r L. lat. 52. C«c. pyior. 22. 



The proeopercular spine is smooth, and reaches to the root of the 

 pectoral ; the soft dorsal and anal are much produced. Black : a 

 broad vertical band from the posterior half of the spinous dorsal, and 

 the caudal yellowish. 



Red Sea. 



a. Adult. Red Sea. From the Senckenberg Museum. 



7. Holacanthus maculosus. 



Chsetodon maculosus, Forsk. p. 62 ; Bl. Sclm. p. 220. 



asfur, var. h, Forsk. p. 61. 



Holacanthus aruset, Lacep. iv. pp. 528, 537. 



coerulescens, Riipp. Atl. Fische, p. 133. 



lineatus, Rilpp. I. c, and N. W. Fische, pp. 31, 32, 36. 



haddaja, Car. 8f Val. vii. p. 175. 



maculosus, Cuv. ^ Val. vii. p. 176. 



15-if^- A-IFil- C^c. pylor. 22. 



The scales are very narrow and irregularly aiTanged ; the prae- 

 opercular spine is smooth, and reaches to the vertical from the pos- 

 terior margin of the operculum ; the dorsal and anal are much pro- 

 duced. Dark brown or brownish -grey, wdth a lighter vertical band 

 from the posterior half of the siiinous dorsal ; the anterior part of 

 the body with black semilunar spots ; caudal yellowish. 



Red Sea. 



a. Adult : stuffed. Red Sea. From the Senckenberg Museum. 



b. Half-grown. Red Sea. 



