ADDENDA. 517 



Page 50. Holacanthus bicolor. 

 h, c. Fine specimens. Amboyna. Purchased of Mr. Franii. 



Page 51. Add a new sjDecies : — 



23 a. Holacantlms cyanotis. 



? Holacanthus luteolus, {Parhins,) Cuv. ^ Val. vii. p. 198 (see p. 42). 



D.||. A.:^. L. lat. 46. L. transv. 6 23. 



The praeopercular spine is smooth, and reaches to the base of the 

 pectoral ; the dorsal and iinal fins are subangiilar posteriorly. 

 Yellow : the vertical fins and the orbit with a very fine blue edge ; 

 operculum with a blue vertical band posteriorly. 



«. Stufied. Aneiteum (New Hebrides). From Mr. MacgiHivray's 

 Collection. 



Description of the specimen. — The form of the body is ovate, its 

 greatest depth (behind the base of the pectoral) being two and two- 

 fifth times, in the total length. The head is small, nearly as high as 

 long, its length being contained four times and one-third in the total. 

 The interorbital space is flat, and its width is somewhat more than the 

 diameter of the eye. Snout short, obtuse, rather longer than the 

 eye. Praeorbital denticulated. The praeopercular spine is smooth, 

 slightly compressed and curved, reaching to the base of the pectoral ; 

 both limbs of the praeoperculum are provided with coarse denticiila- 

 tions. The dorsal fin commences above the opercle, and has rather 

 slender spines ; it is nearly entirely scaly, like the other vertical fins ; 

 the soft dorsal and anal are subangular posteriorly and of moderate 

 height. Caudal rounded. Anal spines rather stronger than those 

 of the dorsal fin ; the third is the longest. The scales are not inter- 

 mixed with small ones. Coloiir as stated above ; it has very little 

 changed, as appears from a note, taken by the collector from the 

 living fish. Its native names are said to be " Jhia" and " Gopdch- 

 gopoch." 



lines. 



Total length 48 



Height of the body 20 



Length of the head 11 



Page 56. Pomacanthus paru. 



There is a figure of the skeleton in Agass. Kech. Poiss. Foss. iv. 

 p. 240. tab. G. (Pomacanthus arcuatus). 



I . Skin. From the Collection of the Zoological Society (P. balteattis). 



a. Very young specimen. Island of Cardova. Presented by J. U. 

 Skinner, Esq. — This specimen belongs to che variety P. arcuatus ; 

 the yellow bands, however, terminate in blue, and there is al- 

 ways another bluish band between two yellow ones. 



