508 ADDENDA ET CORRIGENDA. 



Page 17(). Novacula kallosoma. 



Add to the synonj'my : — 

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



Page 183. Julis genivittata. 

 I now believe that this species and J. hehraica (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. Ayrcs from Port Natal, the larger of which 

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

 both are e\^dently of the same species. An experience like this must 

 lead us to suppose that many a ti'opical species, based on colours alone 

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



The name Julis hehraica is prior to the other. 

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

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

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

 band behind the pectoral. Dorsal and anal fins yellow, 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 

 upi^er margin; base of the anal fin pm-ple. 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. Ap'cs's Collection. 

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

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

 tudinal hands ; 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 hehraica. 



See note (supra) on /. f/enivittata. 



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

 3. Scarus maschalespilos, Bleek. Not.Ichthi/oJ* p. 122. — Surinam. 



Page 210. Scarus catesbyi. 



Add to the synonymy : — 

 Scarus nielanotis, Bh'ek. Not. Ichthynl.* p. 121. 



* See note, p. 507. 



