ADDENDA. 517 



Page 50. Holacanthus bicolor. 



h, c. Fine S23ecimens. Amboyna. Purchased of Mr. Frank. 



Page 51. Add a new species : — 



23 a. Holacanthus cyanotis. 



? Holacanthus luteolus, (Parkins.) Via: ^- Val. vii. p. 198 (see p. 42). 



D. i|. A. ^. L. lat. 46. L. transv. 6/23. 



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

 pectoral ; the dorsal and anal fins are subangular posteriorly. 

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

 operculum with a blue vertical band posteriorly. 



a. Stufied. Aneiteum (New Hebrides). From Mr. MacgiUivray'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-thii-d 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 prajopercular spine is smooth, 

 slightly compressed and cui'ved, reaching to the base of the pectoral ; 

 both limbs of the prteoperculum are provided with coarse denticula- 

 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 doi-sal 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. Colour as stated above ; it has very little 

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

 li\'ing fish. Its native names are said to be " Jhia" and *' Gopoch- 

 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. Rech. Poiss. Foss. iv. 

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



V. Skin. From the Collection of the Zoological Society (P. halteatus). 



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

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

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

 ways another bluish band between two yellow ones. 



