508 ADDENDA ET CORRIGENDA. 



Page 176. Novacula kallosoma. 



Add to the synonymy : — 

 Novaculichthys kallosoma, Bleek. Atl. Ichth. p. 145. tab. 31. fig. 3. 



Page 183. Julis genivittata. 



I now believe that this species and J. hebraica (p. 186) are iden- 

 tical, the former representing older individuals than the latter. I 

 have arrived at this opinion from the comparison of two very fine spe- 

 cimens sent by Mr. Th. Ayres from Port Natal, the larger of which 

 ought to be referred to J. genivittata, the other to J. hebraica, although 

 both are evidently of the same species. An experience like this must 

 lead us to suppose that many a tropical species, based on colours alone 

 and introduced into our system, will prove to be merely a variety. 



The name Julis hebraica is prior to the other. 



/. Nine inches long. Port Natal. From Mr. Th. Ayres's Collection. 

 — This specimen would belong to J. genivittata. Head dark- 

 violet, with the bands on the cheek obscure ; no yellow cross- 

 band behind the pectoral. Dorsal and anal fins yeUow, the 

 former with a black spot anteriorly, and with a purple band 

 edged with violet along the whole fin, broader on the soft por- 

 tion than on the spinous, and nearer to the base than to the 

 upper margin; base of the anal fin purple. Pectoral yellow, 

 blackish on its posterior half, and with a blackish spot superiorly 

 in the axil. Caudal lobes considerably produced. 



g. Six inches long. Port Natal. From Mr. Th. Ayres's Collection. 

 — This specimen corresponds to the description of J. hebraica. 

 Bands on the head and trunk very distinct ; fins without longi- 

 tudinal bands ; base of the pectoral black. 



Julis commersonii, Cuv. & Val., has been erroneously considered as 

 a synonym of this species. 



Page 184. Julis bicolor. 



I have now seen several specimens of this species. It comes from 

 Mauritius, and has been described by Valenciennes under the name 

 of J. commersonii, Cuv. & Val, xiii. p. 418, which name, of course, 

 must be retained. 



Page 186. Julis hebraica. 



See note (supra) on J. genivittata. 



Page 208. Add to the doubtful species of Scarus : — ■ 

 3. Scarus maschalespilos, Bleek. Not. IchthyoL* p. 122. — Surinam. 



Page 210. Scarus catesbyi. 



Add to the synonymy : — 

 Scarus raelanotis, Bleeh. Not. Ichthyol.* p. 121. 



* See note, p. 507. 



